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Journal articles on the topic 'Goal-kicking'
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1
Witt, Jessica K., and Travis E. Dorsch. "Kicking to Bigger Uprights: Field Goal Kicking Performance Influences Perceived Size." Perception 38, no. 9 (January 1, 2009): 1328–40. http://dx.doi.org/10.1068/p6325.
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Perception relates not only to the optical information from the environment but also to the perceiver's performance on a given task. We present evidence that the perceived height and width of an American-football field goal post relates to the perceiver's kicking performance. Participants who made more successful kicks perceived the field goal posts to be farther apart and perceived the crossbar to be closer to the ground compared with participants who made fewer kicks. Interestingly, the current results show perceptual effects related to performance only after kicking the football but not before kicking. We also found that the types of performance errors influenced specific aspects of perception. The more kicks that were missed left or right of the target, the narrower the field goal posts looked. The more kicks that were missed short of the target, the taller the field goal crossbar looked. These results demonstrate that performance is a factor in size perception.
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Witt, J., and T. Dorsch. "Kicking to bigger uprights: Field goal kicking performance influences perceived size." Journal of Vision 9, no. 8 (September 3, 2010): 70. http://dx.doi.org/10.1167/9.8.70.
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Blair, Stephanie, Sam Robertson, Grant Duthie, and Kevin Ball. "Biomechanics of accurate and inaccurate goal-kicking in Australian football: Group-based analysis." PLOS ONE 15, no. 11 (November 11, 2020): e0241969. http://dx.doi.org/10.1371/journal.pone.0241969.
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Goal-kicking is an important skill in Australian Football (AF). This study examined whether kinematic differences exist between accurate and inaccurate goal-kicks and determined the relationships between technical factors and accuracy. Eighteen elite to sub-elite AF players performed 15 x 30 m goal-kicks on an AF training ground, with three-dimensional kinematics collected using the Xsens inertial measurement system (Xsens Technologies B.V., Enschede, the Netherlands). A general linear mixed modelling approach and regression-based statistics were employed to quantify differences between accurate and inaccurate goal kicks and the relationships between technical factors and accuracy. Accurate goal-kicks were characterised by a straighter approach line, with less kick-leg joint range of motion (knee and hip), lower linear velocity (centre of mass, foot speed), angular velocity (knee and shank), and less support-leg knee flexion during the kicking phase compared to inaccurate goal-kicks. At the end of the follow through, players produced greater ankle plantarflexion and a straighter-leg line in accurate goal-kicks. Findings in this research indicated that many factors interact with goal-kicking accuracy in AF, ranging from the players’ approach line path, their support-leg mechanics, the kick-leg swing motion, to the final position of the kicker during their follow through.
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Anderson, Darren, Ray Breed, Michael Spittle, and Paul Larkin. "Factors Affecting Set Shot Goal-kicking Performance in the Australian Football League." Perceptual and Motor Skills 125, no. 4 (June 9, 2018): 817–33. http://dx.doi.org/10.1177/0031512518781265.
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Set shot goal-kicking is recognized as an important skill in Australian Football (AF), accounting for over half of all goals kicked in the Australian Football League (AFL). However, as knowledge surrounding its performance is limited, this study described the frequency, types, and outcomes of set shots in the AFL and investigated the impact of task, personal, and environmental constraints on goal-kicking performance. We analyzed video footage of set shots from all 198 matches of the 2012 season, collecting data for kick distance, kick angle, player position, player experience (i.e., general and specific), kick outcome, and weather status. We found an average of 23.0 (standard deviation [ SD] = 4.5) set shots/match, with a mean accuracy of 55.0% ( SD = 0.7%). Kicking accuracy decreased with incremental increases in kick distance, with accuracy ranging from 97% (0–15 m) to 36% (≥50 m). Key forwards were more accurate kickers than other players. There was no significant effect of player experience. The number of set shots taken decreased by 13% in wet weather conditions. The primary determinant of elite set shot goal-kicking performance was the interaction of kick distance and angle (task difficulty). This research adds to an understanding of how personal, environmental, and match constraints influence this closed skill performance in AF match play.
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Quarrie, Kenneth L., and Will G. Hopkins. "Evaluation of goal kicking performance in international rugby union matches." Journal of Science and Medicine in Sport 18, no. 2 (March 2015): 195–98. http://dx.doi.org/10.1016/j.jsams.2014.01.006.
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Rizwan, Mochammad, Rahmat Permana, and Mohammad Fahmi Nugraga. "Pengaruh Permainan Tradisional Pecle Terhadap Kekuatan Menendang Bola Di Sdn Leuwipicung." Jurnal Pendidikan Indonesia 3, no. 9 (September 17, 2022): 780–86. http://dx.doi.org/10.36418/japendi.v3i9.1145.
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There are various types of sports, one of which is soccer. Almost all people in the world know this sport, even though they don't like it or don't play it, at least most people in the world know this type of sport. The goal of soccer is to score as many goals as possible against the opponent's goal. To be able to score a goal must be able to kick the ball well. To improve students' kicking skills, the way to do this is by using the traditional game of pecle. The goal to be achieved is to determine the effect of the traditional pecle game on the kick strength of students who take part in soccer extracurriculars at SDN Leuwipicung. In this study, the researchers used a quasi-experimental posttest only control group design. The population in this study were 25 students of SD Negeri Leuwipicung who took part in extracurricular football. In this study, the researchers used a saturated sampling technique because the population was less than 30 people. Data were obtained using interviews, observation, practical tests and documentation. The test used is kicking for distance from warner test of soccer skill. The results of the reliability test using Cronbach's Alpha with the result of 0.153. That way the reliability test gets reliable results because the Alpha value > 0.60. Based on the results obtained, the results of the research on the traditional game of pecle have an effect on kicking power in soccer.
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Kolly, Liontin Violita, and Johni Melvin Tahapary. "PENGARUH METODE LATIHAN TERHADAP KETEPATAN MENENDANG KE GAWANG PADA PEMAIN FUTSAL PATRIOT PROGRAM STUDI PENJASKESREK FKIP UNPATTI." JARGARIA SPRINT: Journal Science of Sport and Health 1, no. 2 (December 10, 2020): 88–93. http://dx.doi.org/10.30598/jargariasprintvol1issue2page88-93.
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The purpose of this study was to determine whether there was an effect of the training method on the accuracy of kicking at the goal of the FKIP Unpatti futsal player Patriot Patriotek. This research is an experimental study, where the author wants to know the ability of futsal player Patriot Penjaskesrek to improve shooting accuracy, with a one group pre-test-post-test-design research design. The method used in this study is an experimental method based on the reference Suarsimin Arikunto. Based on the results of submitting a hypothesis in this study that there is the effect of the training method on the accuracy of kicking at the goal of the Futsal Patriot player of the FKIP Unpatti Penjaskesrek Study Program. This shows that Squat, Heel raise, Cones drill, and Kick to the goal exercises can significantly influence the ability to kick into the goal so that it can be explained that the Exercise Squat, Heel raise, Cones drill, and Kick to the goal is one alternative that can used to improve the ability to kick into the goal on the Futsal Club Patriot FKIP Unpatti Study Program Penjaskesrek.
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Marchant, Daryl, and Patrick McLaughlin. "Innovative Strategies to Inform Coaching Practices in Australian Football." International Sport Coaching Journal 1, no. 1 (January 2014): 17–23. http://dx.doi.org/10.1123/iscj.2013-0038.
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Innovative strategies were used to inform coaching practices regarding the skill of set-shot goal kicking in Australian Football (AF). An action learning approach was adopted including planning, data gathering, analyses and dissemination phases. Three distinct approaches were used to inform AF coaches of evidence and strategies to guide implementation, a) applying statistical trend data, b) applying expert knowledge, and c) applying biomechanical principles. Trend data from a full AFL season consisting of over 4,000 set-shots was used to inform coaches on numerous performance related parameters (e.g., distance, angle). Expert insider perspectives were generated through in-depth interviews with eight retired AF goal kicking champions. The past players had all kicked over 500 goals at the elite level and four had obtained AFL Hall of Fame or AFL Legend status. The related analyses produced six primary themes (a) correct technique (b) incorrect technique, (c) pre-kick routine, (d) mental skills (e) challenges/choices and (h) training. Third, biomechanical principles were applied to set-shot kicking with accompanying images and drills provided to coaches. A two year follow-up indicated the results were highly transferable to training and competitions. Coaches in sports that include closed skills may benefit from transferring where applicable these strategies to their sports.
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Potthast, Wolfgang. "Motion differences in goal kicking on natural and artificial soccer turf systems." Footwear Science 2, no. 1 (March 2010): 29–35. http://dx.doi.org/10.1080/19424280903535447.
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Nicholls, Michael E. R., Tobias Loetscher, and Maxwell Rademacher. "Miss to the Right: The Effect of Attentional Asymmetries on Goal-Kicking." PLoS ONE 5, no. 8 (August 24, 2010): e12363. http://dx.doi.org/10.1371/journal.pone.0012363.
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Noël, Benjamin, John van der Kamp, and Daniel Memmert. "Implicit Goalkeeper Influences on Goal Side Selection in Representative Penalty Kicking Tasks." PLOS ONE 10, no. 8 (August 12, 2015): e0135423. http://dx.doi.org/10.1371/journal.pone.0135423.
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Avugos, Simcha, Ofer H. Azar, Nadav Gavish, Eran Sher, and Michael Bar-Eli. "Goal center width, how to count sequences, and the gambler’s fallacy in soccer penalty shootouts." Judgment and Decision Making 14, no. 1 (January 2019): 98–108. http://dx.doi.org/10.1017/s1930297500002953.
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AbstractPrevious research has reported that the gambler’s fallacy could be detected in goalkeepers’ behavior during penalty shootouts. Following repeated kicks in the same direction, goalkeepers were more likely to dive in the opposite direction on the next kick. We employ here a unique data collection approach and accurately measure the exact location of each ball when crossing the goal plane. This allows us to analyze how different definitions of the goal center width affect the results, and we show that this width indeed affects whether a gambler’s fallacy in goalkeepers’ diving behavior exists. We further augment the data with additional kicks from top international competitions and analyze the extended dataset. We also question whether previous treatments of kicking sequences adequately represent what goalkeepers consider as a run of consecutive kicks to the same side. A different representation of kicking sequences is provided and applied to the data. Overall, we find some evidence for the gambler’s fallacy after sequences of two or three kicks to the same side.
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SEO, Kazuya, Kaoru KIMACHI, Sungchan HONG, Takeshi ASAI, and Takuo FURUKAWA. "Is it good to have the ball tilted forward of rugby goal kicking?" Proceedings of the Symposium on sports and human dynamics 2018 (2018): B—20. http://dx.doi.org/10.1299/jsmeshd.2018.b-20.
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King, Adam C., and Zheng Wang. "Asymmetrical stabilization and mobilization exploited during static single leg stance and goal directed kicking." Human Movement Science 54 (August 2017): 182–90. http://dx.doi.org/10.1016/j.humov.2017.05.004.
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Masmoudi, Liwa, Adnene Gharbi, Cyrine H’Mida, Khaled Trabelsi, Omar Boukhris, Hamdi Chtourou, Mohamed Amine Bouzid, et al. "The Effects of Exercise Difficulty and Time-of-Day on the Perception of the Task and Soccer Performance in Child Soccer Players." Children 8, no. 9 (September 10, 2021): 793. http://dx.doi.org/10.3390/children8090793.
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In soccer, accurate kicking skills are important determinants of successful performance. A successful kick must meet several criteria, including speed, accuracy, and timing. In fact, players who are able to kick the ball more accurately under various difficulties, such as time pressure, space constraints, the opponent’s pressure, and the distance between the kicking point and the goal, have a clear advantage during soccer games. The aim of the present study was to investigate the effect of exercise difficulty and time-of-day on perceived task difficulty and kicking performance. Accordingly, 32 boys (age: 11 ± 0.7 years; height: 1.45 ± 0.07 m; body-mass: 38.9 ± 7.8 kg) performed shooting accuracy tests under two difficulty levels (distance (long-distance (LD) vs. short-distance (SD)) and time pressure (Without-time-pressure (WTP) vs. With-time-pressure (TP)) at 08:00 h and 17:00 h. Absolute-error, variable-error, and constant-error were evaluated during the kicking tasks, in addition to ball velocity and shooting quality. Moreover, rating-of-perceived-exertion score (RPE), feeling-scale (FS), and perceived difficulty were completed immediately at the end of each test. The results showed that shooting quality was not affected by the time-of-day, but it was better in WTP vs. TP (p < 0.05), and in SD vs. LD (p < 0.05), respectively. Higher values for FS and lower values for RPE were observed in the morning compared to the afternoon (p < 0.05) and in WTP vs. TP (p < 0.05). In conclusion, specific soccer skills of boys were not time-of-day dependent, but they may be associated with time pressure and task difficulty.
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Jackson, Robin C. "Pre-performance routine consistency: temporal analysis of goal kicking in the Rugby Union World Cup." Journal of Sports Sciences 21, no. 10 (October 2003): 803–14. http://dx.doi.org/10.1080/0264041031000140301.
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Oftadeh, Sara, Abbas Bahram, Rasoul Yaali, Farhad Ghadiri, and Wolfgang I. Schöllhorn. "External Focus or Differential Learning: Is There an Additive Effect on Learning a Futsal Goal Kick?" International Journal of Environmental Research and Public Health 19, no. 1 (December 29, 2021): 317. http://dx.doi.org/10.3390/ijerph19010317.
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(1) Background: How to optimally promote the process of acquiring and learning a new motor skill is still one of the fundamental questions often raised in training and movement science, rehabilitation, and physical education. This study is aimed at investigating the effects of differential learning (DL) and the elements of OPTIMAL theory on learning a goal-kicking skill in futsal, especially under the conditions of external and internal foci. (2) Methods: A total of 40 female beginners were randomly assigned to, and equally distributed among, five different interventions. Within a pretest and post-test design, with retention and transfer tests, participants practiced for 12 weeks, involving two 20-min sessions per week. The tests involved a kicking skill test. Data were analyzed with a one-way ANOVA. (3) Results: Statistically significant differences with large effect sizes were found between differential learning (DL) with an external focus, DL with an internal focus, DL with no focus, traditional training with an external focus, and traditional training with control groups in the post-, retention, and transfer tests. (4) Conclusions: The results indicate the clear advantages of DL. It is well worth putting further efforts into investigating a more differentiated application of instructions combined with exercises for DL.
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Lu, Chi-Heng, Chiu-Ching Tuan, Yi-Chao Wu, Chi-Chuan Wu, Mei-Chuan Chen, Chin-Shiuh Shieh, and Tsair-Fwu Lee. "Evaluate the Medial Muscle Strength by Kick Training between the Standing and Sitting Postures." Applied Sciences 9, no. 4 (February 19, 2019): 718. http://dx.doi.org/10.3390/app9040718.
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In order to ameliorate the anterior knee pain or peripheral pain around the tibia caused by patellar lateral subluxation, we evaluated the kick training effects of standing or sitting postures in strengthening the vastus medialis obliquus (VMO) on the quadriceps femoris muscle. A total of 83 subjects (45 male; 38 female) in both sitting and standing positions performed 10° to 90° leg lift and kick training. Among the male group, the effect of the sitting posture was better than that of the standing posture, 74.31% of the former achieved the training goal. In the female group, the effect of a standing posture was better than that of a sitting posture, for which only 37.71% of the latter achieved the training purpose. However, a ratio of 84.34% in the female group showed that the strength of VMO on the quadriceps femoris muscle generated by leg kicking was greater than the strength generated by walking. While it was impossible to immediately achieve a greater effect of VMO on the quadriceps femoris muscle than vastus lateralis on the quadriceps femoris muscle, leg kicking did achieve the objective of enhancing the strength of VMO on the quadriceps femoris muscle.
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Jackson, Robin C., and Julien S. Baker. "Routines, Rituals, and Rugby: Case Study of a World Class Goal Kicker." Sport Psychologist 15, no. 1 (March 2001): 48–65. http://dx.doi.org/10.1123/tsp.15.1.48.
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This paper presents a case study of the most prolific rugby goal kicker of all time. In the first part of the study, the consistency of his preperformance routine was analyzed over kicks of varying difficulty. Results indicate that while certain physical aspects of his routine remain consistent, both his concentration time and physical preparation time increase with kick difficulty. In the second part of the study, the participant was interviewed about his physical and mental preparation for rugby goal kicking in competitive situations. The interview revealed that the participant incorporates a number of psychological skills into his routine, including thought stopping, cueing, and imagery but does not do so consistently. However, he perceives the timing of his routine to be highly consistent. Implications of these findings for the recommendation that performers strive for temporal consistency in their routines (Boutcher, 1990) are discussed.
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Rustam, Rustam, and Yosi Riduas Hais. "Perancangan Sistem Pengisian Capacitor Bank Secara Otomatis Pada Penendang Solenoid Robot Sepak Bola Universitas Jambi." Journal of Electrical Power Control and Automation (JEPCA) 4, no. 2 (December 29, 2021): 62. http://dx.doi.org/10.33087/jepca.v4i2.56.
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One of the KRI fields is the Indonesian Football Robot Contest (KRSBI). In a match the robot does not know when the ball from the robot in one team is ready to be kicked into the opponent's goal. The kicking robot has an important role in creating goals against the opponent's goal. At the KRSBI solenoid kicker, Jambi University, using a booster converter zvz 390 to charge a capacitor bank which has a capacitance of 3900 F with a high voltage of 387 V, takes 6.34 seconds. However, 387 V is the maximum booster converter voltage. To minimize the occurrence of damage, a voltage of 310 V is set as the setpoint voltage for charging the capacitor bank with a charging time span of 4.3 seconds. Then the automatic control system for charging capacitor banks has a maximum error of 1.9%
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Hunter, Andrew, Sean Murphy, Michael Angilletta, and Robbie Wilson. "Anticipating the Direction of Soccer Penalty Shots Depends on the Speed and Technique of the Kick." Sports 6, no. 3 (July 29, 2018): 73. http://dx.doi.org/10.3390/sports6030073.
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To succeed at a sport, athletes must manage the biomechanical trade-offs that constrain their performance. Here, we investigate a previously unknown trade-off in soccer: how the speed of a kick makes the outcome more predictable to an opponent. For this analysis, we focused on penalty kicks to build on previous models of factors that influence scoring. More than 700 participants completed an online survey, watching videos of penalty shots from the perspective of a goalkeeper. Participants (ranging in soccer playing experience from never played to professional) watched 60 penalty kicks, each of which was occluded at a particular moment (−0.4 s to 0.0 s) before the kicker contacted the ball. For each kick, participants had to predict shot direction toward the goal (left or right). As expected, predictions became more accurate as time of occlusion approached ball contact. However, the effect of occlusion was more pronounced when players kicked with the side of the foot than when they kicked with the top of the foot (instep). For side-foot kicks, the direction of shots was predicted more accurately for faster kicks, especially when a large portion of the kicker’s approach was presented. Given the trade-off between kicking speed and directional predictability, a penalty kicker might benefit from kicking below their maximal speed.
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Mosquera Ulcuango, Edgar Froylan. "Importancia de las capacidades coordinativas especiales en el tiro a portería de los futbolistas sub-12." Revista Cognosis 7, no. 1 (March 28, 2022): 159–72. http://dx.doi.org/10.33936/cognosis.v7i1.4535.
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El fútbol es un deporte practicado a nivel mundial, siendo parte fundamental su práctica en edades tempranas, uno de sus principales fundamentos es el tiro a portería, que es la acción técnica que involucra el lanzamiento del balón a la portería del equipo contrario, que puede ejecutarse con las extremidades inferiores, tronco y cabeza. Esta acción está relacionada directamente con las capacidades coordinativas; que son un elemento importante en el entrenamiento de fútbol formativo, siendo parte fundamental en esta investigación se estableció como objetivo, fundamentar la importancia del entrenamiento de las capacidades coordinativas especiales en el tiro a portería en futbolistas Sub-12, la metodología se basó en un estudio de revisión teórica, que utiliza métodos como el analítico – sintético para el procesamiento y análisis de la información, así como el inductivo-deductivo para ir de lo específico como es el tiro a la puerta, a lo general como es el desenvolvimiento coordinativo del deportista en la ejecución de la técnica del tiro a la puerta, el tipo de investigación es documental, a través de la cual se establece un análisis de la información obtenida de datos secundarios. Entre los hallazgos fundamentales se pudo determinar que los distintos autores determinan en sus estudios que los ejercicios de coordinación potencian la técnica de los niños en edades tempranas, por lo tanto, mejoran los aspectos como el control, la estabilidad y el tiro a portería.
PALABRAS CLAVE: Capacidades coordinativas especiales; fútbol; portería; tiro.
Importance of special coordination abilities in the shot at goal of U-12 soccer players
ABSTRACT
Soccer is a worldwide sport, and its practice at early ages is an essential aspect. One of its fundamentals is goal shooting, which is a technical activity that involves kicking the ball into the opponent's goal. This can be done with the lower limbs, trunk, and head. This action is directly related to coordinative abilities, which are an important element in formative soccer training, and a vital part of this research. It was established as an objective to substantiate the significance of special coordination skills training in goal shooting by U-12 soccer players. The methodology was based on a theoretical review, which uses methods such as the analytical-synthetic for the processing and analysis of information, as well as the inductive-deductive method to go from the more specific (as in the goal shooting) to the more general (as in the sportsman's coordination development in the goal shooting technique). The type of research is documentary, through which an analysis of the secondary data information is established. Among the primary findings, there were some researchers who determined that coordination exercises enhance children's technique at early ages. Therefore, they improve areas such as control, stability, and goal shooting.
KEYWORDS: Special coordinative abilities; soccer; goalkeeping; kicking.
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Widodo, Achmad, Himawan Wismanadi, Heri Wahyudi, Muhammad Dzul Fikri, and Awang Firmansyah. "Validation of Soccer Shooting Skills Test in Junior High School Students." Jp.jok (Jurnal Pendidikan Jasmani, Olahraga dan Kesehatan) 6, no. 1 (November 26, 2022): 29–40. http://dx.doi.org/10.33503/jp.jok.v6i1.1852.
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The purpose of the study was to develop a test instrument of shooting skill that is valid and reliable on junior high school soccer students (13-15 years) as many as 33 subjects. The approach of this type of research is the development, the sampling using purposive sampling method that has the criteria of Junior High School students aged 13-15 years (male) who are hobbyists and proficient in soccer. The results of the test validity test showed that the level of validity of the instrument shooting skills test on right and left foot 0.89 with perfect category, and has a reliability value of R = 0.78 (medium), left r = 0.83 (high). The conclusion of this study is that the instrument tests of shooting skill with the closest distance to the goal of 15m using the right and left limbs have a level of validity that meets the standards. Thus the instrument tests of shooting skill can be used to measure and assess the technical skills of playing kicking the ball into the football goal at the junior high school level (13-15 years).
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Cisneros, Rafael, Kazuhito Yokoi, and Eiichi Yoshida. "Impulsive Pedipulation of a Spherical Object with 3D Goal Position by a Humanoid Robot: A 3D Targeted Kicking Motion Generator." International Journal of Humanoid Robotics 13, no. 02 (May 25, 2016): 1650003. http://dx.doi.org/10.1142/s0219843616500031.
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This paper describes an algorithm that enables a humanoid robot to perform an impulsive pedipulation task on a spherical object in the environment; that is, by using its feet to exert an impulsive force capable of driving the object to a 3D goal position while achieving certain motion characteristics. This is done by planning a suitable motion for the legs of the humanoid, capable to exert the required impact conditions on the spherical object while maintaining the dynamic stability of the robot. As an example of this algorithm implementation we consider the free kick in soccer and take it as a case study. Finally, we provide some simulation and experimental results that intend to show the validity of this algorithm.
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Díez-Fernández, David M., David Rodríguez-Rosell, Federico Gazzo, Julián Giráldez, Rodrigo Villaseca-Vicuña, and Jose A. Gonzalez-Jurado. "Can the Supido Radar Be Used for Measuring Ball Speed during Soccer Kicking? A Reliability and Concurrent Validity Study of a New Low-Cost Device." Sensors 22, no. 18 (September 17, 2022): 7046. http://dx.doi.org/10.3390/s22187046.
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The aim was to analyze the reliability and validity of a low-cost instrument, based on a radar system, to quantify the kicking ball speed in soccer. A group of 153 male soccer players (under-13, n = 53; under-15, n = 54; under-18, n = 46) participated in this study. Each player performed three kicks on the goal in a standardized condition while the ball speed was measured with three different devices: one Radar Stalker ATS II® (reference criterion) and two Supido Radar® (Supido-front of the goal and Supido-back of the goal). The standard error of measurement (SEM) expressed as a coefficient of variation (CV) and the intraclass correlation coefficient (ICC) were employed for assessing the reliability of each instrument. Stalker and Supido-back showed very high absolute (CV = 4.0–5.4%) and relative (ICC = 0.945–0.958) reliability, whereas Supido-front resulted in moderate to low reliability scores (CV = 7.4–15%, ICC = 0.134–0.693). In addition, Lin’s concordance correlation coefficient (CCC) values revealed an ‘almost perfect’ agreement between Stalker and Supido-back for the average (r = 0.99) and maximal (r = 0.98) ball speed, regardless of the ball speed range analyzed. However, Supido-front resulted in a poor degree of concordance (CCC = 0.688) and a high magnitude of error (17.0–37.5 km·h−1) with the reference Stalker radar gun. The Supido Radar® placed behind the goal could be considered a reliable and valid device for measuring ball speed in soccer.
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Cooley, Dean, Rebecca Oakman, Lars McNaughton, and Todd Ryska. "Fundamental Movement Patterns in Tasmanian Primary School Children." Perceptual and Motor Skills 84, no. 1 (February 1997): 307–16. http://dx.doi.org/10.2466/pms.1997.84.1.307.
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Gross motor development, using the Test of Gross Motor Development was investigated in 7– and 10-yr.-old Tasmanian school children ( N = 574) to provide normative data for primary school children. The effects of daily physical education, time spent on physical education per week, schools with and without a trained physical educator, motor skill training programs, and their effects upon development of fundamental movement patterns was also investigated. Time spent on physical education instruction per week, significantly influenced Gross Motor Development scores in that the more time spent on physical education, the higher the score. Having a motor skill training program in the school was significant for 10-yr.-olds. A review of daily physical education with perhaps a goal of greater emphasis on manipulative control skills such as kicking, throwing, and striking should take place especially for girls, as their scores were significantly lower than those of boys.
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Sulistijono, Indra Adji, Son Kuswadi, One Setiaji, Inzar Salfikar, and Naoyuki Kubota. "A Study on Fuzzy Control of Humanoid Soccer Robot EFuRIO for Vision Control System and Walking Movement." Journal of Advanced Computational Intelligence and Intelligent Informatics 16, no. 3 (May 20, 2012): 444–52. http://dx.doi.org/10.20965/jaciii.2012.p0444.
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Instability is one of the major defects in humanoid robots. Recently, various methods on the stability and reliability of humanoid robots have been studied actively. We propose a new fuzzy-logic control scheme for vision systems that would enable a robot to search for and to kick a ball towards an opponent goal. In this paper, a stabilization algorithm is proposed using the balance condition of the robot, which is measured using accelerometer sensors during standing and walking, and turning movement are estimated from these data. From this information the robot selects the appropriate motion pattern effectively. In order to generate the appropriate reaction in various body of robot situations, a fuzzy algorithm is applied in finding the appropriate angle of the joint from the vision system. The performance of the proposed algorithm is verified by searching for a ball, walking, turning tap and ball kicking movement experiments using an 18-DOF humanoid robot, called EFuRIO.
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Nurseto, Fransiskus, Suwarli Suwarli, and Ardian Cahyadi. "The Effect Of Balance And Strength Of Muscle Leg On The Accuracy Of Kicking A Ball Towards The Goal In The Student Football University Of Lampung." Journal of Education, Health and Sport 9, no. 12 (December 5, 2019): 19. http://dx.doi.org/10.12775/jehs.2019.09.12.002.
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Nurseto, Fransiskus, Suwarli Suwarli, and Ardian Cahyadi. "The Effect Of Balance And Strength Of Muscle Leg On The Accuracy Of Kicking A Ball Towards The Goal In The Student Football University Of Lampung." Quality in Sport 5, no. 4 (December 27, 2019): 13. http://dx.doi.org/10.12775/qs.2019.020.
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Esser, Stephan, David Jantz, Mark F. Hurdle, and Walter Taylor. "Proximal Rectus Femoris Avulsion: Ultrasonic Diagnosis and Nonoperative Management." Journal of Athletic Training 50, no. 7 (July 1, 2015): 778–80. http://dx.doi.org/10.4085/1052-6050-50.2.13.
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Objective To present a case of ultrasonic diagnosis and nonoperative management of a complete proximal rectus femoris avulsion in a National Collegiate Athletic Association Division 1 soccer goalkeeper. Background While delivering a goal kick, a previously uninjured 24-year-old collegiate soccer goalkeeper had the sudden onset of right anterior thigh pain. He underwent rehabilitation with rapid resolution of his presenting pain but frequent intermittent recurrence of anterior thigh pain. After he was provided a definitive diagnosis with musculoskeletal ultrasound, he underwent an extended period of rehabilitation and eventually experienced complete recovery without recurrence. Differential Diagnosis Rectus femoris avulsion, rectus femoris strain or partial tear, inguinal hernia, or acetabular labral tear. Treatment Operative and nonoperative options were discussed. In view of the player's recovery, nonoperative options were pursued with a good result. Uniqueness Complete proximal rectus femoris avulsions are rare. Our case contributes to the debate on whether elite-level kicking and running athletes can return to full on-field performance without surgery. Conclusions Complete proximal rectus femoris avulsions can be treated effectively using nonoperative measures with good preservation of function even in the elite-level athlete. In addition, musculoskeletal ultrasound is an excellent tool for on-site evaluation and may help guide prognosis and management.
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Facer-Childs, E. R., S. P. Drummond, and S. W. Rajaratnam. "0204 The Impact of Sleep on Well-Being and Diurnal Performance in Elite Australian Football League Athletes." Sleep 43, Supplement_1 (April 2020): A80. http://dx.doi.org/10.1093/sleep/zsaa056.202.
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Abstract Introduction The ultimate goal in the sports world is achieving optimal health and continuous high-level performance through an adequate balance of training load and recovery e.g. rehab, nutrition, well being and sleep. Athletes often encounter situations that negatively impact their ability to sleep well, disrupt their biological rhythms and increase mental stress e.g. late competition times, travel and high training load. Therefore, there is a need to increase our understanding of how individual variability could be impacting recovery and performance in elite sports. Methods This study examined the relationships between individual sleep and circadian patterns, well-being and performance variables in Australian Football League (AFL) athletes. Actigraphy combined with daily sleep diaries were used to gather objective sleep data over a period of 14 days. Performance tests were conducted in the morning (between 07:00 - 08:00am) and afternoon (between 14:00 - 15:00) on days 3, 5, 7, 10, 12 and 14. Performance measures included a strength test (force plate jump), a skilled based accuracy test (goal kicking) and a reaction time test (psychomotor vigilance task). Results Preliminary results show that sleep and circadian parameters differed significantly between individuals and were correlated with measures of well-being and diurnal performance. Conclusion The Australian Football League (AFL) is one of the largest growing sports industries in Australia and New Zealand with annual revenues reaching a billion dollars. These findings add to the growing literature showing how sleep impacts performance in elite athletes and highlights the need to take sleep and time of day into account. This is of critical importance to the global sports industry, who are constantly seeking marginal gains. Support n/a
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Zákravský, Jiří. "Basque National Football Team as a Political Tool. One Hundred Years Old Project and Its Changes (1915–2014)." Sport Science Review 25, no. 1-2 (May 1, 2016): 5–28. http://dx.doi.org/10.1515/ssr-2016-0001.
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Abstract The goal of my article is to analyze football in Basque Country, or better to say Basque national football representation, as a political tool since its inception. I decided to focus on this specific region because football, and Basque national team as well, has a long history and plays an important role in the whole Spanish society. Football in Spain is a political issue because of the multi-national composition of the state where we observe strong separatist or secessionist demands. In my opinion, Basque national team has never been “only” a football selection. Euskal Selekzioa is a well-known Basque nationalist speaker because of the way how it represents Basque nation. It uses one of the most popular things all round the world, kicking the ball. This article is divided into four main parts. In the first chapter, I deal with the birth of Basque national movement and with the discovery of the game of football in Spain. The second chapter is dedicated to the Spanish Civil War when the world-famous Basque national football team existed. Another part observes the Basque nationalism in the context of football, not only in Franco’s time but during the years of the transition to democracy. I finish my article with a contemplation of the officialization of Basque national football team.
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BEHNKE, SVEN, and JÖRG STÜCKLER. "HIERARCHICAL REACTIVE CONTROL FOR HUMANOID SOCCER ROBOTS." International Journal of Humanoid Robotics 05, no. 03 (September 2008): 375–96. http://dx.doi.org/10.1142/s0219843608001510.
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Humanoid soccer serves as a benchmark problem for artificial intelligence research and robotics. Every year, more teams are competing, for example, in the RoboCup Humanoid League. As the robots improve in the basic skills of walking, kicking, and getting up, teams can focus on soccer skills and team coordination. The complexity of soccer behaviors and team play calls for structured behavior engineering. In this paper, we describe the design of the behavior control software for the Humanoid League team NimbRo. The software is based on a framework that supports a hierarchy of reactive behaviors. It is structured both as an agent hierarchy (joint–body part–player–team) and as a time hierarchy. The speed of sensors, behaviors, and actuators decreases when moving up in the hierarchy. The lowest levels of this framework contain position control of individual joints and kinematic interfaces for body parts. At the next level, basic skills are implemented. Soccer behaviors like searching for the ball, approaching the ball, avoiding obstacles, and defending the goal reside on the player level. Finally, on the tactical level, the robots communicate via a wireless network to negotiate roles and use allocentric information to configure the soccer behaviors. Our robots performed very well at RoboCup 2007, which took place in Atlanta, Georgia, USA. They won both the KidSize and the TeenSize humanoid soccer competitions.
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Yunita, Yunita, Aan Wasan, Susilo Susilo, Widiastuti Widiastuti, Juriana Juriana, Kurnia Tahki, and Muchtar Hendra Hasibuan. "The effect of eye-foot coordination, leg muscle strength and mental skills on the shooting skills of bangka football school athletes." Gladi : Jurnal Ilmu Keolahragaan 13, no. 04 (December 30, 2022): 347–59. http://dx.doi.org/10.21009/gjik.134.01.
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This study aims to determine the effect of eye-foot coordination, leg muscle strength, and mental skills on the shooting skills of Bangka Football School athletes. The research method used is an associative quantitative approach with non-test techniques, while the analysis technique uses a path analysis approach. This research was conducted at SSB Selindung 89, Bangka, aged 9-12 years, totaling 36 people. To measure shooting skills, use a ball shooting skill test which is placed at a point 8 m in front of the goal/target. Test your eye-foot coordination by kicking the ball against a wall or the Threebox Wall Soccer Test. Test leg muscle strength using a leg dynamometer with three trials. While the mental skills test uses a questionnaire. Conclusions from the results of the study 1) Eye-foot coordination has a direct effect on shooting skills by 34.1%. 2) Leg muscle strength has a direct effect on shooting skills by 45.3%. 3) Mental skills directly affect shooting skills by 35.4%. 4) Eye-foot coordination has a direct effect on mental skills by 23.5%. 5) Leg muscle strength has a direct effect on mental skills by 44.8%. 6) Eye-foot coordination has an indirect effect on shooting skills of athletes through mental skills of 50.7%. 7) Leg muscle strength has an indirect effect on athletes' shooting skills through mental skills of 43.8%.
Keywords: Eye-Foot Coordination, Leg Muscles, Mental Skills, Shooting
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Primasoni, Nawan, Donny Mahendra Prakosa, and Tama Anugrah. "The effects of shuttle run and three corner drill on the agility of soccer players in soccer academy." Jurnal Keolahragaan 10, no. 2 (September 26, 2022): 175–82. http://dx.doi.org/10.21831/jk.v10i2.52005.
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Football is a game that is played by kicking the ball to get the ball into the opponent's goal. The game of soccer requires speed and agility. This study aims to determine the effects of shuttle runs and three corner drills on agility and to compare the effect of those exercises on the agility of twenty soccer players in the Soccer Academy. This experimental research employed the two groups of pretest-posttest design. The population used is a Kalasan soccer academy player with a total of 20 players. The sample used is the entire population and will be divided into two groups with an ordinal pairing technique. The soccer players' agility was assessed using the Illinois agility test in the pretest and post-test. Shuttle run and three corner drill exercises were carried out 16 times (3 times a week). Based on the results of data analysis, the average pretest score of the shuttle run group is 17.99, while the post-test average score is 16.15. Then, the average scores of the three corner drill groups are 18.08 and 16.32, respectively in the pretest and post-test. The pretest and post-test scores of both groups were compared, and the differences are 1.84 seconds for the shuttle run and 1.76 seconds for the three-corner drill. This study concludes that the shuttle run and three corner drill are both significantly effective in improving agility because those exercises are not significantly different, but the shuttle run works better than the three corner drill in improving agility.
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Wahrman Msw, O., and L. Bastaic. "Reclaiming Our Missing Sexual Selves." Klinička psihologija 9, no. 1 (June 13, 2016): 124. http://dx.doi.org/10.21465/2016-kp-op-0089.
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Objective: Our goal is to show how the Imago relationship paradigm, relates to couples presenting sexual problems. According to Imago theory, we come into the world whole and complete, with joyful aliveness and potential to grow. To thrive we need messages that support our full potential. Our energy needs to be able to flow freely through all areas of ourfunctioning: being, thinking, feeling, doing and sensing. In response to repressive messages of socialization, we become anxious about expressing parts of ourselves, which limits or overdevelops our capacity to function in some areas. These parts we’ve had to let go off, are freezed inside of us. Eventually, we will fall in love with someone who has our frozen parts alive and kicking, which makes them so very attractive. Design and Method: We’ll examine the messages we’ve received overtly and covertly, about sexuality, from our families and our culture, and begin to understand how they impact our sexual selves and sexual expression. Everything will be done dialogically according to the Imago structure Results: We will discuss and let the participants understand and experience why we are attracted to “such someone” and what happens when we take off our pink glasses. Conclusions: We shall look at the negative messages that lead to anxiety about our acceptability, and see how we get access to our lost sexual parts at the beginning of the relationship, how we lose them again during the course of the relationship, and what do we have to do in order to get them back again.
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Childress, Susan B., Tyler Buckley, Andrew Badke, Amy Horyna, Julie Howell, Lisa Gren, and Anna Catherine Beck. "Hardwiring advance directives into an electronic medical record." Journal of Clinical Oncology 34, no. 7_suppl (March 1, 2016): 146. http://dx.doi.org/10.1200/jco.2016.34.7_suppl.146.
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146 Background: Patient preference at the end of life has been extensively researched and documented. Advance Directives (AD) have been shown to make a difference for patients in the areas of quality, cost, and patient satisfaction. Organizations struggle with meeting federal laws and accreditation expectations due to our complex systems. Literature supports “hardwiring” AD documentation into the EMR and providing “one click” accessibility to AD’s. Changing EMR vendors provides a unique opportunity to optimize access to AD’s, both through patient education /endorsement, review of providers’ role, and engagement of IT. Methods: Huntsman Cancer Institute at the University of Utah identified an opportunity to improve the process of obtaining AD's during a change to Epic as an EMR. MD/RN champions brought a team together that included pastoral care, social work, medical records, and IT. The group used national "Decision Day" efforts as a platform for kicking off the project. Notable barriers to implementation included AD’s from previous EMR not migrating, inadequate systems for RN and SW consultation, lack of triggers to engage provider support, and MD order sets requiring major revisions Accessibility on the banner from any view was deemed best practice. Audits were created to give feedback to hospital staff and the quality department. This effort was also identified as a priority quality goal for the entire institution. Results: There have been significant improvements in assessing patients, obtaining AD's, and providing easy access to these records. Conclusions: EMR systems do not always come with processes in place to address the need to obtain AD's, scan or enter them into the EMR, and provide easy access during critical decision points in patient care. Collaboration with the IT team in identifying institutional requirements and workflow is critical as an organization identifies the need to improve AD system flow or begins planning for transition to a new EMR.
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SATRIYO, MOHAMAD BINAWAN, KHAIRUL ANAM, and MOHAMMAD AGUNG PRAWIRA NEGARA. "Sistem Kontrol Robot Sepak Bola Beroda menggunakan Finite State Machine (FSM)." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 9, no. 2 (April 4, 2021): 344. http://dx.doi.org/10.26760/elkomika.v9i2.344.
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ABSTRAKPerkembangan teknologi menuntut transisi alat yang berbasis manual menjadi otomatis. Hal ini tak terkecuali pada perkembangan robot, termasuk robot sepak bola. Robot ini mengalami perkembangan sangat pesat. Hal ini didukung dengan adanya Kontes Robot Sepak Bola Indonesia (KRSBI). Penelitian kali mengusulkan robot sepak bola beroda dengan omni-directional weel sebagai pergrakannya menggunakan Finite State Machine (FSM) sebagai metode kontrol untuk menjalankan misi yang ditentukan. Misi robot yang dikembangkan yaitu mencari bola (wander), mencari posisi lurus terhadap bola, mencari gawang, dan menendang bola. Robot ini menggunakan CMUCam5 sebagai sensor masukan untuk mendeteksi bola sebagai target bedasarkan warna dan jarak. Jarak yang digunakan yaitu antara 20 cm sampai 60 cm dengan sudut antara -40 derajat sampai 40 derajat dan intensitas cahaya antara 113 sampai 1213 lux. Implementasi FSM pada robot sepak bola beroda dengan 5 jenis percobaan mencapai tingkat keberhasilan yang bagus yaitu 86% dengan rata-rata waktu menjalankan misi 29.24 detik.Kata kunci: CMUCam5, Finite State Machine, Omni-directional wheel, Robot Sepak Bola ABSTRACTTechnological development demands a transition from manual to automatic tools. It includes soccer robots that have developed so rapidly. This development is supported by the Indonesian Football Robot Contest (KRSBI). This study proposes a wheeled soccer robot with Omni-directional weel as its movement using Finite State Machine (FSM) as a control to carry out the specified mission. The mission is wandering to seek the ball, looking for a straight position to the ball, looking for the goal, and kicking the ball. This robot uses CMUCam5 as an input to detect the ball as a target based on color and distance. The distance used is between 20-60 cm with an angle of -40 degree to 40 degree and light intensity between 113-1213 lux. The implementation of FSM on a wheeled soccer robot with five types of experiments achieved a good result of 86% with an average mission time of 29.24 seconds.Keywords: CMUCam5, Finite State Machine, Omni-directional weel, Wheeledsoccer robot
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Łuczak, Joanna, Joanna Michalik, Karolina Gawrońska, Marzena Zakostowicz, Izabela Zielińska, and Michał Szczerba. "Systemic Cryotherapy in the Treatment of Autistic Children." Acta Balneologica 64, no. 6 (2022): 503–6. http://dx.doi.org/10.36740/abal202206102.
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Aim: Autistic disorders in children cover three developmental areas: social interaction, communication development disorders, and repetitive behavioral repertoire. Autistic children are a group resistant to therapeutic intervention due to their imapired contact with the environment, but the correction and compensation of disturbed functions through the interaction of motor and seems to be the most important goal of therapy. Materials and Methods: The study group consisted of 57 students of two special schools diagnosed with autism (age 6-16 (AVG 10 +/- 6), whose parents consented to participate in the research program, this 12 (21%) girls and 45 (79) %) boys. Fine and gross motor skills were assessed. The assessment of fine motoricity included the evaluation of the functions of individual parts of the body: throwing and catching a large ball, throwing tennis balls accurately into the basket while sitting on a chair, standing, lying on a mattress, pedalling on a stationary bike, performing unassisted squats, lifting the knees high in a standing position,unassisted jumping on a baton and kicking a volleyball. Large motor activity (change of place) included: walking up the stairs holding on to the handrail, stepping back and forth,going through the tunnel, walking on a ramp inclined at an angle of 45, traversing an obstacle course made of soft rollers of different sizes with the help of another person. After a two-week break, the subjects received a series of 10 treatments temperature at a temperature of - 110°C, each treatment lasting 2 minutes. The treatments took place once a day from Monday to Friday, excluding Saturdays and Sundays. After each treatment, the patient exercised for 1 hour in accordance with the previous results of fine and gross motor skills. Results: 1 child (10 entries) completed a full series of treatments. Other children: - 9 entries - 1 child, - 8 entries - 2 children, - 4 entrances – 2 children, - 3 entries - 1 child, - 2 children refused to continue the procedure after 30 seconds, - 2 child refused to enter the cryochamber. Conclusions: 1. It seems that cryogenic therapy should not be used in autistic children due to safety and the amount of work involved in preparing and conducting the procedures. 2. Parents’ attitudes towards the disease and their child’s treatment options make it difficult to cooperate and plan the therapy.3. In adult high-functioning autistics being treated at ZUL there is a very good tolerance of the procedure.
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Li, Chunping, Jie Wang, and Qingding Yu. "Efficiency Analysis and Utilization of College Sports Equipment Based on Intelligent Computing." Journal of Sensors 2022 (May 29, 2022): 1–10. http://dx.doi.org/10.1155/2022/7497555.
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Under the background of the new curriculum standard, promote the all-round development of moral education, intellectual education, physical education, aesthetic education, and labor education. Children’s health exercise also makes physical education one of the subjects that schools and parents attach importance to. Different from the teaching methods of other disciplines, physical education is carried out outdoors and has high requirements for equipment and facilities, which is not only related to the effective implementation of physical education but also related to students’ enthusiasm for outdoor physical exercise. It is actually a powerful theoretical support for physical education. With the frequent loss, damage, and lack of sports equipment in colleges and universities, people do not think: how can we manage the equipment efficiently and orderly and keep its integrity? It can be seen that the effective use of school sports equipment and facilities in the new period should grasp the research core, clarify the research direction and goal, and provide strong support for the continuous innovation of school sports education. The management of sports equipment is an important part of the daily work of schools. All schools have formulated management systems and use norms, but from the long-term practice, it is obvious that the implementation of the system and use norms is not ideal, and various management systems and norms become a mere formality. Even physical education teachers do not strictly follow this requirement, resulting in the management process of sports equipment and facilities in trouble. It can be seen that the management of sports equipment is not strictly controlled, and it is difficult to implement it, which limits the application value and effectiveness of sports equipment, and students are prone to safety problems in class. Therefore, the school should employ full-time personnel to manage sports equipment, which also improves the attention of the personnel to equipment management. For equipment damage, many students use equipment wrongly and damage equipment, so reasonable use of equipment and facilities can prolong the service life of equipment and facilities. However, physical education teachers usually do not demonstrate the use of equipment scientifically in the teaching process and lack guidance to students, which leads to many students not paying enough attention to the use of equipment, such as kicking basketball, sitting on a stool with basketball, and inflating football; these are the reasons that lead to the damage of equipment. We can through the intelligent optimization of the management mode of sports equipment for a qualified management delay the service life of equipment.
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Nesbitt, Christianne, Ajay Gupta, Kurt Maly, Hamid Reza Okhravi, and Shubham Jain. "15 Feasibility of Using Wearable Sensors to Detect Agitation in Persons with Dementia." CNS Spectrums 24, no. 1 (February 2019): 181. http://dx.doi.org/10.1017/s1092852919000105.
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AbstractBACKGROUND/METHODWearable sensors have become increasingly accurate in measuring various aspects of health monitoring in humans. Persons with dementia (PWD) often experience problematic behavioral and psychological symptoms of dementia (BPSD). These behaviors can include kicking, hitting, biting, screaming, pushing and are stressful and dangerous for the PWD as well as for caregivers both formal paid caregivers and informal family caregivers. There are many proven methods to intervene during agitated behavior outburst and the earlier these methods are used the better the results. Such methods include redirection, one-on-one socialization, music therapy, pet assisted therapy, etc. These types of effective methods are preferred over routine or as needed medications to control the behaviors. The medications currently used have well documented adverse side effects, especially in aging adults.This IRB approved study used a convenience sample of eight PWD who had a history of BPSD in an assisted living facility specializing in the care of PWD. We evaluated the use of off-the-shelf smart watch technology to measure limb movements, vocalizations, heart rate and location in a facility. The research goal was to determine the feasibility of using this technology to accurately measure patient data which in turn will allow clinicians to promptly detect agitation and provide early intervention. Output data from the watch was compared to data recorded by trained observers using the Cohen-Mansfield Agitation Inventory (CMAI). Data was collected in four-hour blocks of time over a two-day period.RESULTSAll the participants wore the devices without difficulty. Observations were then compared to the information obtained from the smart watch technology. Limb movements and heart rate increases correlated well with observers’ measurements of agitation. True positive measures were greater than 60% (data streams from devices correlated with observations). The voice measures of tone, volume and words used did not correlate well due to background noise in this communal environment.CONCLUSIONSData streams did correlate with observations. This technology could be useful in quickly identifying, and potentially anticipate, agitation in PWD. Further research is pending that will fine tune our software developed to measure the data streams and enhance accuracy. Also, improvements are being made in the ability to use voice recognition technology to capture the vocalizations associated with agitation. This technology can be used to quickly identify and prevent escalation of some BPSD by allowing early application of non-pharmacologic methods to treat agitation. Further study will also evaluate the impact this may have on the quality of life for caregivers and PWD.Funding Acknowledgements: Old Dominion University Office of Research, $2,500
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Wang, Ping, Kathryn Marley, John Joseph Vogt, and Joan Mileski. "Contextual effects on the LSS implementation in networked service environments." International Journal of Quality & Reliability Management 37, no. 5 (July 23, 2019): 755–80. http://dx.doi.org/10.1108/ijqrm-02-2019-0052.
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Purpose The purpose of this paper is to investigate the contingency effects that contextual factors of a networked service environment have on the phased Lean Six Sigma (LSS) implementation frameworks. Design/methodology/approach This paper employs the critical realism (CR) case study research methodology to examine the contingent and causal relationships between contextual configurations of business networks, the DMAIC or PDCA phases in an LSS implementation agenda, and business management functions. The authors conducted a single case study on the basis of challenges they met in kicking off lean transportation in the Port of Houston. Findings The key finding from the study is a mid-range theory regarding the contingency effects of contextual factors of service business networks on the phased LSS implementation frameworks. The authors found that when there are complexity and dynamics of contextual factors at the field layer, management should focus more on tasks in early LSS phases to emphasize influencing. When there is no centralized authority in the network and the value-system is loosely coupled, management needs to execute more tasks as described in the define, measure and analyze phases with the purpose of both influencing and orchestrating. When individual actors have goals not aligned well with the goal of the business network and have unmatched operations capabilities, these factors should be considered as early as possible in these LSS phases. When a business network has complicated business processes with high unpredictability and uncertainty and individual actors’ value-creation systems are not well embedded in the entire value-creation system, PDCA will be the preferred core structure of an LSS implementation agenda. Research limitations/implications This study contributes to the LSS research stream by introducing a causal/contingency model that prescribes the contingency effects of three contextual configurations on LSS implementation. It also contributes to the emerging discipline, business network management, regarding how to use LSS frameworks in strategic planning. It also contributes to the CR school of problem-driven case study by using a strategic initiative framework as a platform and each phase in the framework as a unit. This conceptualization of the entity of interest helps explore the interactions among three theoretical constructs: contextual configurations, phased LSS implementation agenda and management functions. Practical implications Managerial implications of this study are twofold. One is the procedure of analyzing the impacts of contextual factors on the causal relationships between LSS implementation phases and network management functions. The entire procedure represents the agenda-setting process of LSS implementation, the most daunting and challenging managerial task in LSS projects. Another one is the guideline on how to determine whether DMAIC or PDCA is appropriate for the LSS agenda when used in a networked environment. Originality/value This paper would serve as an excellent resource for both academicians and LSS practitioners in initiating, orchestrating and managing an LSS project in a networked service environment. This study represents the first effort to explore the impact of contextual factors of business networks on lean transformation.
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Steves, Claire J., Mitul M. Mehta, Stephen H. D. Jackson, and Tim D. Spector. "Kicking Back Cognitive Ageing: Leg Power Predicts Cognitive Ageing after Ten Years in Older Female Twins." Gerontology 62, no. 2 (November 10, 2015): 138–49. http://dx.doi.org/10.1159/000441029.
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Background: Many observational studies have shown a protective effect of physical activity on cognitive ageing, but interventional studies have been less convincing. This may be due to short time scales of interventions, suboptimal interventional regimes or lack of lasting effect. Confounding through common genetic and developmental causes is also possible. Objectives: We aimed to test whether muscle fitness (measured by leg power) could predict cognitive change in a healthy older population over a 10-year time interval, how this performed alongside other predictors of cognitive ageing, and whether this effect was confounded by factors shared by twins. In addition, we investigated whether differences in leg power were predictive of differences in brain structure and function after 12 years of follow-up in identical twin pairs. Methods: A total of 324 healthy female twins (average age at baseline 55, range 43-73) performed the Cambridge Neuropsychological Test Automated Battery (CANTAB) at two time points 10 years apart. Linear regression modelling was used to assess the relationships between baseline leg power, physical activity and subsequent cognitive change, adjusting comprehensively for baseline covariates (including heart disease, diabetes, blood pressure, fasting blood glucose, lipids, diet, body habitus, smoking and alcohol habits, reading IQ, socioeconomic status and birthweight). A discordant twin approach was used to adjust for factors shared by twins. A subset of monozygotic pairs then underwent magnetic resonance imaging. The relationship between muscle fitness and brain structure and function was assessed using linear regression modelling and paired t tests. Results: A striking protective relationship was found between muscle fitness (leg power) and both 10-year cognitive change [fully adjusted model standardised β-coefficient (Stdβ) = 0.174, p = 0.002] and subsequent total grey matter (Stdβ = 0.362, p = 0.005). These effects were robust in discordant twin analyses, where within-pair difference in physical fitness was also predictive of within-pair difference in lateral ventricle size. There was a weak independent effect of self-reported physical activity. Conclusion: Leg power predicts both cognitive ageing and global brain structure, despite controlling for common genetics and early life environment shared by twins. Interventions targeted to improve leg power in the long term may help reach a universal goal of healthy cognitive ageing.
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Gürkan, Oğuz, Goktug Ertetik, and Sürhat Müniroğlu. "An examination of goals in the Turkish Super League according to time periods and scoring typesTürkiye Süper Liginde atılan gollerin zaman dilimlerine ve türlerine göre incelenmesi." Journal of Human Sciences 15, no. 1 (March 26, 2018): 499. http://dx.doi.org/10.14687/jhs.v15i1.4785.
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The football which was the most popular sport of the last century, has been continuing to hold attentions of crowds in 21st century either. There is no doubt that one of the reasons why football is so popular is the goals scored in the games. The timing of the goals scored and the kicking techniques can also be shown as reasons why fans are interested in football.This research is conducted in order to determine the distribution of goals scored in 10 seasons (2006/2007-2015/2016) of Turkish Super League according to time periods of 15 minutes, striking styles and total goals scored in 1st and 2nd half times of the games. The data used in the research is obtained from the official website of Turkish Football Federation (T.F.F.). All data is saved in the SPSS 22 program and frequency and percentage values are calculated by using descriptive statistics.In 10 seasons (2006/2007 - 2015/2016), totally 7916 goals are scored in 3026 games played and the average is calculated as 2,62 goal per game. When the goals scored are examined it is seen that the total number of goals scored are; 1045 (13.20%) goals between 1st and 15th minutes, 1056 (13.34%) goals between 16th and 30th minutes, 1281 (16.18%) goals between 31st and 45th minutes, 1313 (16.59%) goals between 46th and 60th minutes, 1355 (17.12%) 61st and 75th, 1866 (23.57%) goals between 76th and 90th. The highest number of goals are scored between 76th and 90th minutes. The number and the percentage of the goals scored in 1st and 2nd half are 3382 goals (42.72%) in 1st half, and 4534 goals (57.28%) 2nd half. More goals (4534 goals) are scored in 2nd half’s and this is 57.28% of total goals scored. When the number of goals scored in the first 17 weeks (1-17) and the second 17 weeks (18-34) of the season are compared; It is found that the number of goals scored in the first 17 weeks are 3898 (49.24%), and 4018 (50.76%) goals are scored in the second 17 weeks. There is a 1,52% increase in the second 17 weeks (18-34) of the league. When the 7916 goals are investigated according to the striking styles; 5700 goals (72%) are scored by foot, 1497 (18.91%) are scored by head, 541 (6.83%) are scored by penalty kick and 178 (2.25%) are scored as own goal. 72% of the goals are scored by foot and this is considered as a significant rate in total goals.Consequently, it is shown that most of the goals are scored in the second halves and between 76-90th minutes of the games and 72% are scored by foot. Coaches and trainers may consider these time intervals and types of goals scored during training sessions to increase their team's ability to score and to prevent opponents from scoring goals. They can also help their teams to get scores or points from matches by raising physical, mental and tactical performances of their team to the higher level.Extended English summary is in the end of Full Text PDF (TURKISH) file.ÖzetGeçtiğimiz yüzyılın en popüler spor dalı olan futbol, 21. yüzyılda da ilgiyle takip edilerek kitleleri peşinden sürüklemeye devam etmektedir. Hiç şüphesiz futbolun bu kadar rağbet görmesinin nedenlerinden birisi de maçlarda meydana gelen gollerdir. Atılan gollerin zamanı ve vuruş teknikleri de futbolseverlerin bu alana ilgi duyma nedenleri arasında gösterilebilir.Bu çalışma, Süper Ligde on sezonda (2006/2007 - 2015/2016) atılan gollerin 15’er dakikalık zaman dilimlerine, gol vuruş türlerine, 1. ve 2. devrede atılan toplam gol sayılarına göre dağılımlarını tespit etmek amacıyla yapılmıştır. Araştırmada kullanılan veriler Türkiye Futbol Federasyonunun (T.F.F.) resmi internet sitesinden elde edilmiştir. Elde edilen tüm veriler SPSS 22 paket programına kaydedilmiş, tanımlayıcı istatistik kullanılarak, frekans ve yüzde değerleri hesaplanmıştır.10 sezonda (2006/2007 - 2015/2016) oynanan 3026 müsabakada toplam 7916 gol atılmış ve maç başı gol ortalaması 2.62 olarak tespit edilmiştir. Atılan goller 15’er dakikalık zaman dilimlerine göre incelendiğinde; 1-15. dakikalar aralığında 1045 gol (13.20%), 16-30. dakikalarda 1056 gol (13.34%), 31-45. dakikalarda 1281 gol (16.18%), 46-60. dakikalarda 1313 gol (16.59%), 61-75. dakikalarda 1355 gol (17.12%) ve 76-90. dakikalarda 1866 gol (23.57%) kaydedilmiştir. 15’er dakikalık zaman dilimlerine göre en fazla golün 76-90. dakikalar aralığında atıldığı gözlemlenmiştir. 1. ve 2. devrelerde atılan gol sayılarına ve yüzdelerine bakıldığında; 1. devre 3382 gol (42.72%), 2. devre 4534 gol (57.28%) kaydedilmiştir. 2. devre daha fazla gol meydana gelmiştir (4534 gol) ve bu da toplamda atılan gollerin 57.28%’ ini oluşturmaktadır. Sezonun ilk 17 (1-17) haftası ve ikinci 17 (18-34) haftasında atılan gol sayıları karşılaştırıldığında; İlk 17 haftada atılan gol sayıları 3898 (49.24%) iken, ikinci 17 haftada atılan gol sayılarının 4018 (50.76%) olduğu ve ligin ikinci 17.haftasında (18-34) atılan gol sayılarında 1.52%’lik bir artış olduğu gözlenmiştir.7916 gol türlerine göre incelediğinde; bu gollerin 5700’ünün (%72) ayakla, 1497’sinin (%18.91) kafayla, 541’inin (%6.83) penaltıdan kaydedildiği, geri kalan 178 golü de (%2.25) takımların kendi kalelerine attıkları görülmektedir. Atılan gollerin 72%’ sinin ayakla kaydedildiği ve ayakla atılan gollerin toplam atılan goller arasında önemli bir yere sahip olduğu gözlemlenmiştir.Sonuç olarak futbolda atılan gollerin daha çok müsabakaların 2. devresinde ve 76-90. dakikalar arasında meydana geldiği, yine gollerin %72 sinin ayakla kaydedildiği görülmektedir. Teknik direktörler ve antrenörler takımlarının skor üretme kabiliyetlerini artırmak, rakibin kalelerinde gol kaydetmelerine engel olabilmek için yukarıdaki zaman aralıklarına ve atılan gollerin tiplerini antrenmanlarda göz önünde bulundurarak sonuca gidebilirler, ayrıca takımlarının fiziksel, zihinsel ve taktik performanslarını üst düzeye çıkartarak takımlarının müsabakalardan puan ya da puanlar almalarına yardımcı olabilirler.
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Moriyama, Mai, Motoki Kouzaki, and Shota Hagio. "Visuomotor Adaptation of Lower Extremity Movements During Virtual Ball-Kicking Task." Frontiers in Sports and Active Living 4 (June 23, 2022). http://dx.doi.org/10.3389/fspor.2022.883656.
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Sophisticated soccer players can skillfully manipulate a ball with their feet depending on the external environment. This ability of goal-directed control in the lower limbs has not been fully elucidated, although upper limb movements have been studied extensively using motor adaptation tasks. The purpose of this study was to clarify how the goal-directed movements of the lower limbs is acquired by conducting an experiment of visuomotor adaptation in ball-kicking movements. In this study, healthy young participants with and without experience playing soccer or futsal performed ball-kicking movements. They were instructed to move a cursor representing the right foot position and shoot a virtual ball to a target on a display in front of them. During the learning trials, the trajectories of the virtual ball were rotated by 15° either clockwise or counterclockwise relative to the actual ball direction. As a result, participants adapted their lower limb movements to novel visuomotor perturbation regardless of the soccer playing experience, and changed their whole trajectories not just the kicking position during adaptation. These results indicate that the goal-directed lower limb movements can be adapted to the novel environment. Moreover, it was suggested that fundamental structure of visuomotor adaptation is common between goal-directed movements in the upper and lower limbs.
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Browne, Peter R., Alice J. Sweeting, and Sam Robertson. "Modelling the Influence of Task Constraints on Goal Kicking Performance in Australian Rules Football." Sports Medicine - Open 8, no. 1 (January 24, 2022). http://dx.doi.org/10.1186/s40798-021-00393-9.
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Abstract Background The primary aim of this study was to determine the influence of task constraints, from an ecological perspective, on goal kicking performance in Australian football. The secondary aim was to compare the applicability of three analysis techniques; logistic regression, a rule induction approach and conditional inference trees to achieve the primary aim. In this study, an ecological perspective has been applied to explore the impact of task constraints on shots on goal in the Australian Football League, such as shot type, field location and pressure. Analytical techniques can increase the understanding of competition environments and the influence of constraints on skilled events. Differing analytical techniques can produce varying outputs styles which can impact the applicability of the technique. Logistic regression, Classification Based on Associations rules and conditional inference trees were conducted to determine constraint interaction and their influence on goal kicking, with both the accuracy and applicability of each approach assessed. Results Each analysis technique had similar accuracy, ranging between 63.5% and 65.4%. For general play shots, the type of pressure and location particularly affected the likelihood of a shot being successful. Location was also a major influence on goal kicking performance from set shots. Conclusions When different analytical methods display similar performance on a given problem, those should be prioritised which show the highest interpretability and an ability to guide decision-making in a manner similar to what is currently observed in the organisation.
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Weigelt, Matthias, and Daniel Memmert. "Goal-Side Selection in Soccer Penalty Kicking When Viewing Natural Scenes." Frontiers in Psychology 3 (2012). http://dx.doi.org/10.3389/fpsyg.2012.00312.
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"A three-dimensional kinematic analysis of the field goal kicking motion in American football." Korean Journal of Sport Biomechanics 13, no. 1 (April 30, 2003): 139–53. http://dx.doi.org/10.5103/kjsb.2003.13.1.139.
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Broodryk, Retief, Lee J. Moore, and Ankebe Kruger. "Quiet eye training during the rugby union goal-kick: Practice and transfer effects in low- and high-pressure conditions." International Journal of Sports Science & Coaching, April 13, 2022, 174795412210826. http://dx.doi.org/10.1177/17479541221082631.
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The present study aimed to examine the effect of a quiet eye training (QET) intervention compared to a technical training (TT) intervention on the visual control and performance of rugby union goal-kickers. Male rugby union players ( n = 18, Mage = 21.35 years, SD = 2.03) were randomly assigned into a QET or TT group. Participants completed a pre-test, retention test 1, pressure test, and retention test 2 over six weeks, including a two-week intervention programme. The QET focussed on the QE and performance, while TT focussed on technical aspects of rugby goal-kicking. Each participant performed a total of 50 kicks that consisted of 15 kicks during the pre-test, retention test 1, and retention test 2, and five kicks during the pressure test. Using a Dikablis eye-tracker the QE was measured before (QE-pre), and during (QE-online), the run-up of the goal-kick. The results indicated that QE-pre durations increased from the pre-test to both retention tests and the pressure test for the QET group only (all p's < 0.05, all d's ≥ 0.08). The QET group also displayed longer QE-pre durations during the pressure and retention tests (all p's < 0.05, all d's ≥ 0.80), and longer QE-online durations during the pressure test ( d = 0.73), compared to the TT group. Finally, the QET group outperformed the TT group during the pressure test ( d = 0.72). Thus, overall, our results revealed that a short QET intervention benefitted attentional control and goal-kicking performance, particularly under high-pressure.
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Sargent, Barbara, Kathryn L. Havens, Masayoshi Kubo, Jessica L. Wisnowski, Tai-Wei Wu, and Linda Fetters. "Motivating Selective Motor Control of Infants at High Risk of Cerebral Palsy Using an In-Home Kicking-Activated Mobile Task: A Pilot Study." Physical Therapy 102, no. 2 (December 2, 2021). http://dx.doi.org/10.1093/ptj/pzab265.
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Abstract Objective Decreased selective motor control limits gait function of children with spastic cerebral palsy (CP). Infants at high risk of CP demonstrate decreased selective motor control by 1 month of age. To motivate more selective hip-knee control, infants at high risk of CP participated in an in-home kicking-activated mobile task. The purpose of this study was to determine whether infants at high risk of CP and infants with typical development (TD) demonstrated increased selective hip-knee control during 2-minute intervals of the mobile task when they demonstrated learning of the association between their leg movement and mobile activation vs during 2-minute intervals when they did not demonstrate learning. Methods Participants in this cohort study included 10 infants at high risk of CP based on neuroimaging and 11 infants with TD at 3.5 to 4.5 months of age. Each infant participated in the in-home kicking-activated mobile task for 8 to 10 min/d, 5 d/wk, for 6 weeks. Over 80,000 kicks were extracted and classified for each infant as occurring during 2-minute intervals of the task when the infant demonstrated learning vs not learning based on mobile activation time above baseline. Results Infants demonstrated kicks with more selective hip-knee control during 2-minute intervals of the mobile task when they demonstrated learning compared with when they did not demonstrate learning for 4 of 6 weeks in the cohort at high risk of CP and for 2 of 6 weeks in the cohort with TD. Conclusion Participation in the in-home kicking-activated mobile task may motivate more selective hip-knee control of infants at high risk of CP. Impact This study is a first step toward developing an intervention to promote selective hip-knee control of infants at high risk of CP, with the ultimate goal of optimizing future walking function. Lay Summary This study showed that playing with an in-home infant kicking-activated mobile may motivate infants at high risk of CP to produce more age-appropriate leg movements.