Academic literature on the topic 'Roller skaters'
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Journal articles on the topic "Roller skaters"
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Rebelo, André, Maria João Valamatos, Sofia Franco, and Francisco Tavares. "Physical and Physiological Characteristics of Female Artistic Roller Skaters Based on Discipline and Level of Expertise." Polish Journal of Sport and Tourism 29, no. 1 (2022): 30–38. http://dx.doi.org/10.2478/pjst-2022-0006.
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Abstract Introduction. In artistic roller skating, athletes use shoes fitted with small wheels to be used in rinks. The sport consists of seven disciplines characterized by different physical demands. Roller skaters are judged on content and manner of performance, and this includes the skater’s ability to do jumps, spins, and footwork. To date, no study has analyzed the different physical qualities in artistic roller skaters based on their skating discipline and skating level. Thus, the purpose of this study was to compare the body composition, flexibility, balance, reactive strength, maximal strength and aerobic capacity based on skating discipline and skating level. Material and methods. A total of 108 female athletes from the three individual disciplines (figures, freestyle, and solo dance) and three different levels (elite, sub-elite, and non-elite) volunteered to participate in this study. All subjects completed the sit-and-reach, front split, Y-Balance, countermovement jump, squat jump, drop jump, isometric mid-thigh pull and 20-metre multistage shuttle roller skate tests. Six multivariate analyses of variance were performed to identify differences between disciplines and levels. Statistical significance was set at p < 0.05. Results. The findings showed that freestyle skaters have less body fat, and higher levels of reactive and maximal strength than figure and solo dance skaters. Elite skaters demonstrate greater values of flexibility, balance, strength and aerobic capacity compared to their sub-elite and non-elite counterparts. Conclusions. The results of this study showed that there are differences between elite and non-elite athletes and between skating disciplines. Strength and conditioning professionals should take that into consideration when training these athletes.
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Pantoja, Patrícia Dias, André Mello, Giane Veiga Liedtke, et al. "Neuromuscular Responses of Elite Skaters During Different Roller Figure Skating Jumps." Journal of Human Kinetics 41, no. 1 (2014): 23–32. http://dx.doi.org/10.2478/hukin-2014-0029.
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AbstractThis study aimed to describe the neuromuscular activity of elite athletes who performed various roller figure skating jumps, to determine whether the muscle activation is greater during jumps with more rotations and in which phase the muscles are more active. This study also aimed to analyze if there is any difference in the muscle activity pattern between female and male skaters. Four elite skaters were evaluated, and each participated in two experimental sessions. During the first session, anthropometric data were collected, and the consent forms were signed. For the second session, neuromuscular data were collected during jumps, which were performed with skates at a rink. The following four roller figure skating jumps were evaluated: single Axel, double Axel, double Mapes and triple Mapes. The neuromuscular activity of the following seven muscles was obtained with an electromyograph which was fixed to the waist of each skater with a strap: biceps femoris, lateral gastrocnemius, tibialis anterior, rectus femoris, vastus lateralis, vastus medialis and gluteus maximus. The signal was transmitted wirelessly to a laptop. During the roller figure skating jumps, the lateral gastrocnemius, rectus femoris, vastus lateralis, biceps femoris and gluteus maximus, showed more activation during the jumps with more rotations, and the activation mainly occurred during the propulsion and flight phases. Female skaters demonstrated higher muscle activities in tibialis anterior, vastus lateralis, vastus medialis and gluteus maximus during the landing phase of the triple Mapes, when compared to their male counterparts. The results obtained in this study should be considered when planning training programs with specific exercises that closely resemble the roller figure skating jumps. This may be important for the success of elite skaters in competitions.
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Romagnoli, Cristian, Vincenzo Bonaiuto, Giorgio Gatta, et al. "2D Video Analysis System to Analyze the Performance Model of Figure Roller Skating: A Pilot Study." Proceedings 49, no. 1 (2020): 155. http://dx.doi.org/10.3390/proceedings2020049155.
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Figure roller skating is a discipline composed of various movements which involve jumps, artistic figures and spins in a seamless program which has both technical and shapely difficult. A biomechanical analysis of a double salchow was performed using a 2D video analysis of one European and in two Italian roller skaters. On average, the high level (HL) roller skater showed a horizontal velocity of the center of mass higher than the average, especially in the prop stage, whereas the medium level (ML) and low level (LL) athletes reduced their velocity significantly. The spin angular velocity of the ML and LL skaters was always higher than of the HL. This phenomenon would seem to be a compensatory strategy for a lower jump height, with a reduced trunk-thigh angle and less thigh lever arm (coxo-femur/knee joints) during the take-off and landing phases of the double salchow jump.
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Draft, Amanda. "Sizing Up Skaters: An Interrogation of Body Discourses in Elite Women’s Flat Track Roller Derby." Women in Sport and Physical Activity Journal 25, no. 1 (2017): 20–29. http://dx.doi.org/10.1123/wspaj.2015-0031.
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Women’s flat track roller derby is considered by participants a space for constructing positive images of diverse female bodies in sport, proclaiming that women of all shapes and sizes are welcome. However, despite evidence to the contrary, the universal claim of diverse body acceptance has not been fully interrogated within the literature. In this three-year auto/ethnography of a Midwestern Division 1 derby league, I ask: In what ways do women derby skaters talk about the derby body, and how do their behaviors coexist with the mantra of inclusion? I rely on participant observation, in-depth interviews with 13 skaters, and personal journaling of my experiences as a skater to problematize the notion that “any body can be a derby girl.” I argue that three contradictory discourses regarding skater bodies simultaneously permeate the elite derby space: 1) “size doesn’t matter,” or that function trumps body form, 2) “bigger is better,” or that larger bodies have greater value, and 3) “serious athleticism,” that skater bodies must have a high level of fitness to compete. I conclude that the mantra of acceptance within derby must be qualified given these other discourses, and that derby’s potential to empower participants and serve as a critique for mainstream sport is thereby limited.
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Carlson, Jennifer. "The Female Signifiant in All-Women’s Amateur Roller Derby." Sociology of Sport Journal 27, no. 4 (2010): 428–40. http://dx.doi.org/10.1123/ssj.27.4.428.
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I analyze women’s flat-track amateur roller derby by asking: how do derby skaters negotiate the requirements associated with emphasized femininity? By drawing on Hebdige’s (1979) analysis of punk, I develop the term female signifiant to argue that roller derby is an aggressive contact sport with a theatrical edge. It provides a rich, adventurous space to satirize athletic and feminine norms. Specifically, skaters’ sport participation is characterized by an interrogation of emphasized femininity without necessarily undermining the masculine/feminine gender binary.
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Saputra, Bayu Aji, and Eka Novita Indra. "PROFIL KONDISI FISIK ATLET SEPATU RODA DAERAH ISTIMEWA YOGYAKARTA." MEDIKORA 18, no. 2 (2019): 70–78. http://dx.doi.org/10.21831/medikora.v18i2.29199.
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Penelitian ini bertujuan mengetahui profil fisik atlet sepatu roda di Daerah Istimewa Yogyakarta. Profil fisik yang diukur meliputi daya tahan, kekuatan otot perut, kekuatan otot lengan, kelincahan, daya ledak, kelentukan, kecepatan dan keseimbangan. Penelitian ini merupakan penelitian deskriptif kuantitatif. Metode yang dipergunakan dalam penelitian ini adalah metode survey dengan teknik pengumpulan data berupa tes dan pengukuran. Populasi dalam penelitian adalah atlet Puslatda Pra Pon Daerah Istimewa Yogyakarta yang berjumlah 12. Indikator tes dan pengukuran yaitu tes kecepatan (sprint 30 m), kekuatan (sit up test dan push up test), power (standing long jump test), kelentukan (sit and reach test), kelincahan (shuttle run test), keseimbangan (stork stand), dan daya tahan (multistage fitness test). Pemilihan subjek penelitian menggunakan purposive sampling, diperoleh seluruh populasi sebagai subjek. Teknik analisis data menggunakan deskriptif. Hasil penelitian profil kondisi fisik dengan tes dan pengukuran menunjukkan hasil sebagai berikut: (1) Kecepatan atlet sepatu roda dikategorikan “kurang sekali” dengan presentase sebanyak 75%, (2) kekuatan otot perut atlet sepatu roda dikategorikan “baik” dengan presentase sebanyak 66%, (3) kekuatan otot lengan atlet sepatu roda dikategorikan “cukup” dengan presentase sebanyak 58.3%, (4) power atau daya ledak atlet sepatu roda dikategorikan “cukup“ dengan presentase sebanyak 66.6%, (5) fleksibilitas atau kelentukan atlet sepatu roda dikategorikan “baik sekali” sekali dengan presentase sebanyak 41.6%. (6) kelincahan atlet sepatu roda dikategorikan “baik” dengan presentase terbesar sebanyak 50%. (7) keseimbangan dikategorikan “baik sekali” dengan presentase sebanyak 100%. (8) daya tahan atlet sepatu roda dikategorikan “baik” dengan presentase sebanyak 50%. Jadi penelitian ini dapat disimpulkan bahwa profil konfisi fisik atlet sepatu roda dalam kategori cukup. PHYSICAL CONDITION PROFILE OF ROLLER SKATES ATHLETES IN THE SPECIAL REGION OF YOGYAKARTA AbstractThis study aims to determine the physical profile of roller skates athletes in the Special Region of Yogyakarta. The physical profile measured includes endurance, abdominal muscle strength, arm muscle strength, agility, explosive power, flexibility, speed and balance. This research is quantitative descriptive. This study use survey method with data collection techniques in the form of tests and measurements. The population in this research is all athletes of the Pre-National Sport Week of Yogyakarta Special Region which is twelve athletes join progressively in training. Test and measurement indicators namely speed test (sprint 30 m), strength (sit-up test and push-up test), power (standing long jump test), flexibility (sit and reach test), agility (shuttle run test), balance (stork stand), and endurance (multistage fitness test). The selection of research subjects using purposive sampling, then obtained entire population as subjects. The data analysis technique uses descriptive. The results of the physical condition profile research with tests and measurements showed the following results: (1) The speed of roller skates was categorized as "very poor" with a percentage of 75%, (2) the abdominal strength of roller skates was categorized as "good" with a percentage of 66% , (3) the arm muscle strength of roller skates is categorized as "sufficient" with a percentage of 58.3%, (4) the power or explosive power of roller skates is categorized as "sufficient" with a percentage of 66.6%, (5) the flexibility or flexibility of the roller skates is categorized "Very good" with a percentage of 41.6%. (6) the agility of roller skaters are categorized as "good" with the largest percentage of 50%. (7) the balance is categorized as "very good" with a percentage of 100%. (8) endurance of roller skaters are categorized as "good" with a percentage of 50%. So this study can be concluded that the profile of physical roller skates athletes in the category is sufficient.
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BALUCH, Bahman. "Dropout Reasons in Iranian Youth Roller Skaters." International journal of Science Culture and Sport 2, no. 8 (2014): 89. http://dx.doi.org/10.14486/ijscs214.
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Duan, Shaolou, Lingfeng Meng, Delong Ma, and Liangyu Mi. "Application Research on Roller Skater Detection, Tracking, and Trajectory Prediction Based on Video Stream." Scientific Programming 2021 (December 7, 2021): 1–9. http://dx.doi.org/10.1155/2021/2702272.
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With the continuous progress of science and technology, the sport of roller skating has developed rapidly and the technical level of the game has become higher and higher. Its sport performance has been rapidly improved. However, China’s roller skating is relatively late, and there is still a certain gap compared with many Western developed countries. In order to improve the performance of China’s roller skating, this study takes the representative Chinese and foreign excellent speed skaters as the research object and compares the sprinting technology of Chinese and foreign excellent speed skaters by using image measurement and image analysis to obtain the kinematic parameters and data of the athletes’ sprinting technology in the competition state. In view of the problem that the current video target tracking algorithm is easy to follow multiple targets, a video multiobject detection and tracking algorithm with improved tracking learning detection (TLD) is studied with the skater in the video as the research object. For the lost target, the prediction function of Kalman filter algorithm is used to track the trajectory of the typical target in the video, and the trajectory tracked by Kalman filter algorithm is used to compensate the lost part of TLD algorithm, so as to obtain the complete trajectory of the typical target in the video to improve the accuracy of video multiobject tracking. Since the existing trajectory prediction algorithms have the limitation of poor accuracy, a social-long short-term memory (Social-LSTM) network-based video typical target trajectory prediction algorithm is proposed to predict the trajectory sequences of typical targets to be detected by incorporating the contextual environment information and the interaction relationship between multiple target trajectories into the Social-LSTM network. The simulation results show that the proposed trajectory prediction algorithm outperforms the traditional LSTM algorithm, Hidden Markov Model Algorithm, and Hybrid Gaussian model algorithm, which is helpful to improve the accuracy of video roller skater target trajectory prediction, and the tracking success rate is 0.98.
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Streeter, Rayanne. "Roller Derby as a Site of Resistance: Strategies for Countering Sexist and Homophobic Assumptions in Women’s Sports." Women in Sport and Physical Activity Journal 24, no. 2 (2016): 143–51. http://dx.doi.org/10.1123/wspaj.2015-0025.
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Previous research has demonstrated that female athletes draw sexist and homophobic remarks, especially in contact sports, which are more highly valued and dominated by men. As such, female athletes have used a variety of responses to combat stigma they face; however, these responses have reaffirmed sexist and homophobic assumptions rather than contest them. In the last decade roller derby has emerged as a contact sport which is female-dominated and whose members seek to complicate gendered assumptions about sport. Analysis of semistructured, in-depth interviews with 17 female flat-track roller derby players shows that although skaters face similar challenges of sexism and homophobia skaters resist these challenges in innovative ways including demonstrating the legitimacy of the sport, educating outsiders on the diversity of players, shrugging off or defending themselves, and adopting new uniforms. This study concludes by arguing that roller derby, as a unique sport within the particular historical moment of increased LGTBQ acceptance, has implications for altering women’s relationship to sport by resisting homophobic and sexist assumptions. The altered relationship includes skaters being more open to different expressions of sexuality and gender in sport, taking control over their athletic status, and fostering a more accepting place for female athletes. In addition, this resistance has the potential to impact female athletes in contact sports other than roller derby by identifying and adopting these resistive strategies creating larger change.
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Knox, C. L., R. D. Comstock, J. McGeehan, and G. A. Smith. "Differences in the Risk Associated With Head Injury for Pediatric Ice Skaters, Roller Skaters, and In-Line Skaters." PEDIATRICS 118, no. 2 (2006): 549–54. http://dx.doi.org/10.1542/peds.2005-2913.
Full textDissertations / Theses on the topic "Roller skaters"
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Helweg-Larsen, Jules. "Lacing Skates and Unlacing Corsets: Gender Play and Multiple Femininities in Roller Derby and Neo-Burlesque." Thesis, University of Oregon, 2017. http://hdl.handle.net/1794/22302.
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Lacing Skates and Unlacing Corsets: Gender Play and Multiple Femininities in Roller Derby and Neo-Burlesque. Contemporary roller derby and neo-burlesque, as an athletic sport and a framed staged performance respectively, each provide a space that encourages gender play through interactions between participants and audience and the role of physical body. In this thesis, I discuss how each activity allows for a multiplicity of feminine identities and commentary by performers on the social and cultural expectations of women. Drawing on performance theory, ritual theory, and gender studies, along with fieldwork, I explore how this commentary comes from participants simultaneously critiquing and embracing those expectations in their performances through costuming, use of the body, and the presence of an audience who interpret the events.
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Yang, Tsui-ping, and 楊萃萍. "The Research of Recreation Conflict among Roller Skaters." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/288279.
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碩士<br>朝陽科技大學<br>休閒事業管理系碩士班<br>91<br>Abstract
Studies on the subject of recreation conflict in Taiwan are in its beginning stages, especially regarding the crowded recreation areas. Since numerous of active citizens take advantage of the recreation facilities, and the friction among participators in the same sport have sparked strong interests among researchers. One of the sports that is gaining popularity in Taiwan is the sport of Roller-Skating, also know as "Inline Roller Skating". During this research, study was conducted at "Da-Yen Forrest Park" to analyze the factors would cause recreation conflict among Roller-Skaters. In addition, to propose reasonable measures to minimize or/and prevent further Recreation Conflicts within the Roller-Skating community.
The method used to conduct this study was by the mean of using questionnaires submitted by the Roller-Skaters that frequently visit the "Da- Yen Forrest Park", a total of 395 questionnaires were collected. After conducting the research, the data analysis showed three critical
factors that would induce recreation conflicts among inline skaters:
participator disturbance, directional disturbance and environmental
disturbance. The result has shown that the Roller-Skaters' Activity Style and Resources Specificity were not considered as factors that would cause Recreation Conflicts among Roller-Skaters. Key factors that would caused the recreation conflicts among Roller-Skaters were the Resource Specificity of the Roller-Skaters and their Lifestyle Tolerance.
The study also proposed ideas that will minimized the Recreation Conflicts among Roller-Skaters. For insistence, the facility should take consideration on the Resource Specificity of the Roller-Skaters by segmenting the recreation area or/and develop designate timeframe that is specific for a particular level of participants. In addition, offers tutorial courses for any new Roller-skating participants on safety, rules and proper etiquette when engaging with other Roller-skaters.
【Keyword】: Recreation Conflicts、Activity Style、Resources Specificity、Model of Experience、Lifestyle Tolerance、 Roller- skating
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Hsiao, Chun-Wei, and 蕭純薇. "Effects of Core Strength Training on Balance and Speed in Roller Speed Skaters." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/03491508983182588566.
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PAN, YI-CHIN, and 潘怡蓁. "A Study of Speed Roller Skaters’ Perceptions on Coach Leadership and Training Satisfaction." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/j7pa7v.
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碩士<br>國立屏東大學<br>體育學系碩士班<br>106<br>This study had explored the differences and correlations of the Taiwanese speed roller skaters’ perceptions on coach’s leadership behaviors and training satisfaction under different background variables. The subjects of this study were the participants of the 39th National CKS Cup Roller Skating Championships in 2017. The research method was questionnaire survey. The questionnaire content consisted of 3 parts: “Individual Basic Information”, “Scale of Coach Leadership Behaviors” and “Scale of Team Cohesion”. A total of 400 questionnaires were distributed, and 350 questionnaires were collected. But there were 20 invalid questionnaires were deducted, so finally is 330 valid questionnaires. The effective questionnaire recovery rate was 82.5%. The male athletes accounted for 198, while the female athletes accounted for 132. The research tool was the "Scale of Speed Roller Skaters’ Perceptions on Coach Leadership and Training Satisfaction". The data were analyzed by independent sample t-test, one-way ANOVA, Pearson's product-moment correlation coefficient (PPMCC), and multiple stepwise regression, etc.
The results are as follows:
I. The perception of the skater under different background variables on coach’s leadership behaviors is not significantly different in age, weekly training times, number of years trained by the incumbent coach, and personal best performance, but significant different in gender and performance of training years.
II. The training satisfaction of the skater under different background
variables is not significantly different in age, weekly training times, number of years trained by the incumbent coach, and personal best performance, but significant different in gender and performance of training years.
III. The skater’s training satisfaction is significant positive correlated to the "Democratic Behavior", "Training And Guidance", "Caring Behavior", and "Rewarding Behavior", etc. But the "autocratic behaviors" is significant negative correlated to the skater’s training satisfaction's "Personal Performance".and "individual behavior" and "personal performance of player training satisfaction" "Shows a significant negative correlation."
IV. "Democratic Behavior", "Caring Behavior" and "Autocratic Behavior" of coach’s leadership behavior can effectively predict the overall satisfaction of the athlete, and the "Democratic Behavior" has the greatest predictive power.
Conclusion:
In the skaters’ training satisfaction correlated to the perception on coach's leadership behaviors, the skaters tend to accept coach’s democratic leadership, while the traditional autocratic style is more likely to lead to resistance. However, the skaters’ training satisfaction focuses on the leadership of coaches, and the profession of the coaches needs to be trusted and identified by the skaters, therefore, a coach should constantly improve the professional knowledge, and research and understand the foreign skills and information of speed roller skating in order to upgrade the professional ability in this field.
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TSAI, PEI-FANG, and 蔡佩芳. "The Study of Elementary School Speed Roller Skaters’ Perceptions on Coach Paternalistic Leadership and Team Cohesion." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/eqq76f.
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碩士<br>國立屏東大學<br>體育學系碩士班<br>106<br>The purpose of this study was to explore the current situation, differences and correlations of elementary school speed roller skaters’ perception on Coach Paternalistic Leadership and Team Cohesion under different variables, and to understand the correlationship and predictability between the perceptions on the coach’s Paternalistic Leadership Behavior and Team Cohesion. The research subjects included a total of 235 middle and senior grades skaters of 2017 National Zhongzheng Cup Speed Roller Skating Tournament. (136 Boys aged 10.632 ± 1.30 Years old, with the Height 141.95 ± 13.85 cm and Weight 35.11 ± 9.40 kg; 99 Girls aged 10.632 ± 1.30 Years old, with the Height 142.94 ± 10.92 cm, and Weight 34.21 ± 7.88 kg).The research methods adopted questionnaire survey and qualitative interviews. The questionnaire content consisted of 3 parts: “Individual Basic Information”, “Scale of Coach Paternalistic Leadership” and “Scale of Team Cohesion”.The data were collected and analyzed by descriptive statistics, independent sample t-tests, one-way ANOVA, Scheffe’s post hoc tests, Pearson product moment correlation coefficient (PPMCC), and multiple stepwise regressions. According the scores of the “Scale of Elementary School Speed Roller Skaters’ Perceptions on Coach Paternalistic Leadership and Team Cohesion” developed by the researcher, the 3 highest score skaters and 3 lowest score skaters were chosen to participate in the semi-structured interviews to realize the correaltion between Coach Paternalistic Leadership and Team Cohesion. The results of this study were as following：
1. In the “Scale of Coach Paternalistic Leadership”, the speed roller skaters’ scores: the highest was Moral Leadership, the second was Benevolence Leadership, and the lowest was Authoritarian Leadership. In the “Scale of Team Cohesion”, the speed roller skaters’ scores: the highest was Teamwork, the second was Team Adaptation, and the next was Interpersonal Affinity and Interpersonal Attraction.
2. The differences of the perceptions of the speed roller skaters under different background variables on the coaches’ paternalistic leadership behaviors.
(1) There were significant differences between Skater’s Grade and Coach’s Gender in the perception on the coach’s Authoritarian Leadership behaviors.
(2) There were no significant difference in the perceptions on the coach’s paternalistic leadership behaviors among the Skater’S Gender, Personal Best Performance, Coach’S Gender, Training Days per week, and Years Trained by the incumbent coach.
3. The differences of the perceptions on team cohesion among the speed roller skaters under different background variables.
(1) There were no significant difference in the perceptions on the coach’s paternalistic leadership behaviors among the Skater’S Gender, Grades, Personal Best Performance, Coach’S Gender, Training Days per week, and Years Trained by the incumbent coach.
4. There was a significant correlation between the elementary school speed roller skater’s perceptions on the coach’s paternalistic leadership behaviors and team cohesion.
5. The elementary school speed roller skater’s perception on the coach’s paternalistic leadership behaviors has a predictability to team cohesion.
6. From the interviews, it was known that the skaters have the perceptions on specific behaviors of the coach’s paternalistic leadership, i.e. Authoritarian Leadership, Benevolent Leadership and Moral Leadership; and have the perceptions on specific behaviors of team cohesion. Moreover, they also have the perceptions on the influence between both of them.
CONCLUSION: Since the skaters have the highest perceptions on the coach’s Moral Leadership, the coach should pay attention to his/her own words and deeds as well as professional knowledge and skills at any time. The skaters also have the highest perceptions on Teamwork, so the coach should pay much attention to the cooperation among the skaters, and this will help their trainings. A skater in different grade or trained by different gender coach have different strength of perception on the coach’s authoritarian leadership, therefore, the coach should pay attention to his/her own authoritarian leadership behaviors on the lower grades skaters to avoid excessive leadership behaviors. There is a correlation between paternalistic leadership and team cohesion, and the scores in Paternalistic Leadership can effectively predict the scores in Team Cohesion. From the qualitative interviews, it can be realized that the skaters have the perceptions on the specific behaviors of paternalistic leadership and team cohesion.
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Chen, Jenhao, and 陳壬晧. "The Construction and Testing of Real-Time Training Parameters Feedback System for Roller Skate Athletes." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/62037313204039691121.
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碩士<br>國立屏東教育大學<br>體育學系碩士班<br>101<br>Real time feedback system [RTFS] is one of the trends which applied to support training in sport science. The purpose of this study is to utilized the platform of LabVIEW Object-Oriented programming to construct an real-time training feedback system and test the application. The main device of RTFS contained infrared shutter, electrocardiogram, accelerometer, NI WIFI Data Acquisition and NI Data Acquisition. The experimental field is a 200 meter international skate racing competition standard. The participant is an male elite eighteen-year-old, 170cm, 65kg, athlete. He was asked to take a 300meter-sprint 6 times and the best records for experimental sample. The collected parameters include average of step length, average of step frequency, heart rate and instantaneous speed. The results are as follows:
1. By the analysis of participant’s speed showed that the speed curve
ascended stably in the acceleration duration, and in the decelerating duration the speed slow down enormously.
2. When the participant got through the crooked path, the variation of step
frequency and heart beats are higher than those through straight path.
The experiment showed RTFS can reflect the skill character which has a fine application. It may become a useful assistant tool for practical training in the future.
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Li, Kun-Chou, and 李坤州. "A Study for the Characteristic of Blood Lactate and Heart Beat Rate in the Different Events of Speed Roller Skate Game." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/01069726521514293496.
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碩士<br>長榮大學<br>運動休閒管理學系(所)<br>97<br>The purpose of this study is to investigate the change between genders of roller skaters on their blood lactate and heart beat rate in different way of distance. Method: Eight excellent speed roller skaters are chosen as the objects of this study, including four males and four females, whose ages are around 17±0.78 years old, and they are around 166.88±5.79 centimeters in heights and around 59.75±5.50 in weight. Those selected athletes have been trained for around 8.5±1.28 years. In a simulated contest, they wear portable-polar for recording their blood lactate and heart beat rate while they are quiet before the exercise. Meanwhile, they also be tested and recorded in the first, the third, the fifth, the seventh, the tenth and the fifteenth minutes after the exercises. Samples of blood lactate are collected from the blood of ears. Statistical Methods: First, to reveal all the variability by Mean and Sigma, including the ages, heights, weights, training time, and the changes of blood lactate and heart beat rate of the testers. Second, Data are analyzed through ANOVA: comparing the changes between blood lactate and heart beat rate among the performance of different kinds of contests. Third, to analyze by T-test: comparing the changes between blood lactate and heart beat rate among the performance of different genders. Moreover, the statistic Level of Significance is α=.05. Conclusion: First, this study reveals that the different kinds of blood lactate all reach the level of significance. It is because the differences of exercise time and strength cause the different ways of using body energy, and it also causes the differences in producing and eliminating the blood lactate. Second, different kinds of heart beat rate can only reach the level of significance in the third minute after exercising. Third, as to different genders in different kinds of exercise performances, the heart beat rate can only reach the level of significance at 1000m contest in the fifth, tenth and fifteen minute. But the blood lactate never reaches the level of significance. Suggestion: First, there are three kinds of training ways to train the athletics’ body energy: training at the aerobic low-lactate, training at the anaerobic high-lactate and training at the anaerobic low-lactate. Second, heart beat rate could be used as the index of exercise strength and exercise burden. Third, this research intends to provide the roller-skating association a reference to select the roller-skate player in the future.
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Bumstead, Brandon R. "Queering the playing field : a critical rhetoric of the cases of Caster Semenya and Johnny Weir." 2011. http://liblink.bsu.edu/uhtbin/catkey/1656305.
Full textBooks on the topic "Roller skaters"
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Pickard, George. Titans and heroes of American roller skating. The National Museum of Roller Skating, 2010.
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Hargreaves, Kate. Talking derby: Stories from a life on eight wheels. Black Moss Press, 2013.
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Pfouts, Sherri Cullison. Roller derby art: Women, wheels, and wicked fun. Schiffer Pub., 2008.
Find full textBook chapters on the topic "Roller skaters"
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Wilches-Castellanos, Paula-Andrea, Daniel-Alejandro Quiroga-Torres, Pedro-Antonio Aya-Parra, and Jefferson Sarmiento-Rojas. "Device Validation to Monitor Speed in High Performance Roller Skaters Through the Internet of Things (IoT)." In IFMBE Proceedings. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30648-9_170.
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Fagundes, David. "Subcultural Change and Dynamic Norms." In Creativity without Law. NYU Press, 2017. http://dx.doi.org/10.18574/nyu/9781479841936.003.0007.
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Dave Fagundes explains how roller derby skaters once guaranteed exclusive use of the pseudonyms under which they compete. Roller derby names were initially a central part of this countercultural, all-girl sport. Despite the availability of trademark protection, skaters developed an elaborate rule structure, registration system, and governance regime to protect the uniqueness of their pseudonyms. When the norms around name exclusivity changed over time, so did the governance regime. This suggests that regardless of law, communities can develop and evolve norms systems if they are close-knit and the norms are welfare-maximizing. Communities are especially likely to rely on self-regulatory approaches, even formal ones that require substantial investment, when membership is closely linked to individual identity.
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"roller skate." In The Fairchild Books Dictionary of Fashion. Fairchild Books, 2022. http://dx.doi.org/10.5040/9781501365287.2299.
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Fox, Robin. "The Youth: Coming in on Roller Skates." In Participant Observer. Routledge, 2017. http://dx.doi.org/10.4324/9781351322843-3.
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"‘When the World Soccer Cup is Played on Roller Skates’: The Atttempt to Make Gaelic Games International: The Meath-Australia Matches of 1967–68." In Sporting Nationalisms. Routledge, 2005. http://dx.doi.org/10.4324/9780203013243-12.
Full textConference papers on the topic "Roller skaters"
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Pyatt, D. W. "Siting and Safety Associated With a Municipal Skate Park." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/sera-24013.
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Abstract The town of Mount Airy, MD chose to construct a skateboard and roller blade park in 1998 because of the many young adults skating on parking lots, streets, and sidewalks within the Town Limits. Many citizens and merchants complained of hazards both to the young adults as well as to pedestrians and drivers. Several sites were selected for evaluation; the final site selection was an existing Town Park. The next step was to design the Skate Park to satisfy both the recreational needs and safety of skaters of all ages and skill levels. In this capacity, the author worked with skating groups, including professional skaters, and insurance experts who insured the Town’s facilities. A design was made, submitted for bids, and constructed in October 1999. The Skate Park has operated safely in the past year and has won recognition as a skater’s park. This paper will discuss how this was accomplished.
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Gerhardt-Powals, Jill. "Have a great lab without needing roller skates." In the 5th annual SIGCSE/SIGCUE ITiCSEconference. ACM Press, 2000. http://dx.doi.org/10.1145/343048.343175.
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Seong-Ho Jo, Jun-Uk Chu, and Yun-Jung Lee. "Motion planning for biped robot with quad roller skates." In 2008 International Conference on Control, Automation and Systems (ICCAS). IEEE, 2008. http://dx.doi.org/10.1109/iccas.2008.4694327.
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Marynowsky, Wade, Sam Ferguson, Angelo Fraietta, and Oliver Bown. "'The Ghosts of Roller Disco', a Choreographed, Interactive Performance for Robotic Roller Skates." In TEI '20: Fourteenth International Conference on Tangible, Embedded, and Embodied Interaction. ACM, 2020. http://dx.doi.org/10.1145/3374920.3375284.
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Itabashi, Ken, and Masaaki Kumagai. "Development of a human type legged robot with roller skates." In 2010 IEEE/SICE International Symposium on System Integration (SII 2010). IEEE, 2010. http://dx.doi.org/10.1109/sii.2010.5708312.
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Abreu da Silva, Nadyson Clayton, Mauricio Rocha Calomeni, Anderson Pontes Morales, and Flávio Thadeu Queiroz Rocha. "Kinematic parameters of crawl swimming in swimming athletesfrom images captured with the aid of home artifacts as a support of equipment for filming." In 7th International Congress on Scientific Knowledge. Biológicas & Saúde, 2021. http://dx.doi.org/10.25242/8868113820212413.
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Analysis of the underwater movements of a swimmer is of fundamental importance in sports, given that the characterization of the propulsion of swimming takes place in the submerged phase of the movements. Given this finding, this homemade artifact built from materials available on the market, such as PVC pipes and fittings; skateboard wheels and roller skates, and relatively low cost, may or may not positively influence the performance of professional and amateur athletes, to improve sports performance and prevent injuries. The objective of this pilot study, for possible collections for sample calculation, was to verify the effectiveness of a home model of support for the cameras during the capture of images for the analysis of movement, in swimming athletes. The study proposed as a method to couple two Go Pro Hero4 cameras to the homemade artifact, one submerged to capture underwater images and another above water level that served for observation of the aerial phase of the stroke, as well as for better framing during the capture of the real-time images, transmitted to the tablet placed on the artifact, which was conducted by an operator positioned on the edge of the pool and moved parallel to the athlete during the execution of the swim. One female swimming athlete from the city of Campos dos Goytacazes-RJ was selected, who performed a 25-meter crawl test, which consisted of two 25-meter shots, with an active range of five minutes between them.For the analyses, the angulations of the lower limbs (ankle, knee, and hip), hip leveling, and the time of the complete stroke cycle, as well as the time of the respective half-cycles, were taken into account. It is concluded that this home artifact modelof support for biomechanical analysis of swimming was able to present its effectiveness relative to the purpose, with the obtainment of images subject to analysis. However, there is a need for additional studies, as in compliance with the decrees related to social isolation, it was not possible to film underwater a larger number of athletes, as well as their respective analyses.
Reports on the topic "Roller skaters"
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Lever, James, Austin Lines, Susan Taylor, Garrett Hoch, Emily Asenath-Smith, and Devinder Sodhi. Revisiting mechanics of ice–skate friction : from experiments at a skating rink to a unified hypothesis. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42642.
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The mechanics underlying ice–skate friction remain uncertain despite over a century of study. In the 1930s, the theory of self-lubrication from frictional heat supplanted an earlier hypothesis that pressure melting governed skate friction. More recently, researchers have suggested that a layer of abraded wear particles or the presence of quasi-liquid molecular layers on the surface of ice could account for its slipperiness. Here, we assess the dominant hypotheses proposed to govern ice– skate friction and describe experiments conducted in an indoor skating rink aimed to provide observations to test these hypotheses. Our results indicate that the brittle failure of ice under rapid compression plays a strong role. Our observations did not confirm the presence of full contact water films and are more consistent with the presence of lubricating ice-rich slurries at discontinuous high-pressure zones (HPZs). The presence of ice-rich slurries supporting skates through HPZs merges pressure-melting, abrasion and lubricating films as a unified hypothesis for why skates are so slippery across broad ranges of speeds, temperatures and normal loads. We suggest tribometer experiments to overcome the difficulties of investigating these processes during actual skating trials.