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Готові списки джерел за темами / Video Kinematic Evaluation / Статті в журналах

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Статті в журналах з теми "Video Kinematic Evaluation"

Автор: Grafiati

Опубліковано: 11 березня 2023

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1

Matsuzaki, Yukiko, Madison R. Heath, Julianne M. Khan, Elad Spitzer, and Peter D. Fabricant. "Reliability of Two-Dimensional Video-Based Analysis in Adolescent Runners." Orthopaedic Journal of Sports Medicine 9, no. 7_suppl3 (2021): 2325967121S0007. http://dx.doi.org/10.1177/2325967121s00072.

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Background: Running analysis is an essential component of evaluation of both injured runners and uninjured runners seeking advice on injury prevention. Reliability of two-dimensional (2D) video analysis has been reported in the adult running population. However, these findings may not apply to youth runners given their unique state during growth and development. The reliability of quantitative and qualitative video-based running gait analysis in the adolescent population is unknown. Purpose: The purpose of this study was to determine the intra-rater and inter-rater reliability of sagittal and

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2

Geonea, Ionut Daniel, Nicolae Dumitru, and Alexandru Margine. "Motion Evaluation Of A Wheelchair Prototype For Disabled People." ACTA Universitatis Cibiniensis 67, no. 1 (2015): 44–50. http://dx.doi.org/10.1515/aucts-2015-0062.

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Abstract In this paper is presented the design solution and experimental prototype of a wheelchair for disabled people. Design solution proposed to be implemented uses two reduction gears motors and a mechanical transmission with chains. It’s developed a motion controller based on a PWM technology, which allows the user to control the wheelchair motion. The wheelchair has the ability of forward – backward motion and steering. The design solution is developed in Solid Works, and it’s implemented to a wheelchair prototype model. Wheelchair design and motion makes him suitable especially for indo

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3

Zahradka, Nicole, Khushboo Verma, Ahad Behboodi, Barry Bodt, Henry Wright, and Samuel C. K. Lee. "An Evaluation of Three Kinematic Methods for Gait Event Detection Compared to the Kinetic-Based ‘Gold Standard’." Sensors 20, no. 18 (2020): 5272. http://dx.doi.org/10.3390/s20185272.

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Video- and sensor-based gait analysis systems are rapidly emerging for use in ‘real world’ scenarios outside of typical instrumented motion analysis laboratories. Unlike laboratory systems, such systems do not use kinetic data from force plates, rather, gait events such as initial contact (IC) and terminal contact (TC) are estimated from video and sensor signals. There are, however, detection errors inherent in kinematic gait event detection methods (GEDM) and comparative study between classic laboratory and video/sensor-based systems is warranted. For this study, three kinematic methods: coor

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4

Hannah, Iain, Andy Harland, Dan Price, Heiko Schlarb, and Tim Lucas. "Evaluation of a Kinematically-Driven Finite Element Footstrike Model." Journal of Applied Biomechanics 32, no. 3 (2016): 301–5. http://dx.doi.org/10.1123/jab.2015-0002.

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A dynamic finite element model of a shod running footstrike was developed and driven with 6 degree of freedom foot segment kinematics determined from a motion capture running trial. Quadratic tetrahedral elements were used to mesh the footwear components with material models determined from appropriate mechanical tests. Model outputs were compared with experimental high-speed video (HSV) footage, vertical ground reaction force (GRF), and center of pressure (COP) excursion to determine whether such an approach is appropriate for the development of athletic footwear. Although unquantified, good

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5

Vladimir, Potop. "Improving Sports Technique of Jaeger Salto on Uneven Bars Based on Biomechanical Indicators." New Trends and Issues Proceedings on Advances in Pure and Applied Sciences, no. 8 (December 22, 2017): 83–91. http://dx.doi.org/10.18844/gjapas.v0i8.2820.

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This paper aims at improvement of key sports technique elements using kinematic and dynamic indicators of Jaeger salto on uneven bars during the training stages. The methods used in this research include analysis of the literature; evaluation of techniques of gymnastics exercises using algorithmic structural–systemic analysis of movement; video-computerised methods using ‘Pinnacle Studio’, ‘Kinovea’ and ‘Physics ToolKit’; movement postural orientation and evaluation of sports technique with complex coordination of movement structure; linear-branched programming of learning and improvement; and

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6

Theoret, C. L., S. M. Barber, R. D. Curie, and Hilary M. Clayton. "Effects of Carpal Synovectomy on Stride Kinematics of Trotting Horses." Veterinary and Comparative Orthopaedics and Traumatology 11, no. 02 (1998): 80–84. http://dx.doi.org/10.1055/s-0038-1632615.

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SummaryA group of eight horses was used to study the effects of synovectomy of one antebrachiocarpal joint on stride kinematics of the trot. Two months after the operation, four of the horses started a progressive exercise program lasting two months. A standardised lameness evaluation and videographic gait analysis were performed on three occasions: two days before the operation, two days after the operation and four months after the operation when the exercise programme had been completed. There were no significant differences in clinical lameness score, amplitude of poll motion, maximal meta

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7

Litvinenko, Y. V., Tomasz Niznikowski, and V. N. Boloban. "Evaluation of the kinematic structure of indicators key elements of sports equipment exercise by postural orientation movements." Physical education of students 18, no. 6 (2014): 29–36. http://dx.doi.org/10.15561/20755279.2014.0606.

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Purpose : Examine the kinematic structure of indicators key elements of sports equipment exercise (difficult to coordinate). The method of postural orientation movements. Material : The study involved acrobats jumpers on the path of high qualification (n = 7). The method used video - computer recording the movements of the athlete. Results : Identified nodal elements of sports equipment double back somersault tuck. Exercise performed after rondat and double back flip and stretch after rondat - flick (coup ago). In the preparatory phase of motor actions acrobatic exercises isolated and studied

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8

POTOP, Vladimir, and Elena –. Diana SIMA. "Learning the Swimming Start by Students in Higher Education of other Profiles." Revista Romaneasca pentru Educatie Multidimensionala 10, no. 1 (2018): 109. http://dx.doi.org/10.18662/rrem/22.

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This paper aims to highlight how to use the computerized video analysis for learning the sports technique key elements of the start in swimming in the case of the students in higher education of other profiles. This scientific approach entailed the organization of an ascertaining experimental study, using the following research methods: bibliographic study of the specialized literature, video computerized method by means of Pinnacle Studio, Kinovea and Physics ToolKit programs, method of movement postural orientation, statistical-mathematical method which uses the KyPlot program and the method

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9

Bartlett, Roger, Erich Müller, Stefan Lindinger, Fritz Brunner, and Calvin Morriss. "Three-Dimensional Evaluation of the Kinematic Release Parameters for Javelin Throwers of Different Skill Levels." Journal of Applied Biomechanics 12, no. 1 (1996): 58–71. http://dx.doi.org/10.1123/jab.12.1.58.

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This study compared three-dimensional release parameters and important features of the throwing technique for male javelin throwers of three different skill levels (elite, club, novice), recorded using three-dimensional cine or video. As expected, significant differences (p < .01) in throw distances and release speeds were found between all three groups. The only other release parameter for which a significant difference was found (between club and novice groups) was the yaw angle. The increase in release speed with increasing skill across the groups may be attributable in part to greater r

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10

Russo, Caterina, Elena Puppo, Stefania Roati, and Aurelio Somà. "Proposal of an Alpine Skiing Kinematic Analysis with the Aid of Miniaturized Monitoring Sensors, a Pilot Study." Sensors 22, no. 11 (2022): 4286. http://dx.doi.org/10.3390/s22114286.

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The recent growth and spread of smart sensor technologies make these connected devices suitable for diagnostic and monitoring in different fields. In particular, these sensors are useful in diagnostics for control of diseases or during rehabilitation. They are also extensively used in the monitoring field, both by non-expert and expert users, to monitor health status and progress during a sports activity. For athletes, these devices could be used to control and enhance their performance. This development has led to the realization of miniaturized sensors that are wearable during different spor

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11

Sandlund, Marlene, Erik Domellöf, Helena Grip, Louise Rönnqvist, and Charlotte K. Häger. "Training of goal directed arm movements with motion interactive video games in children with cerebral palsy – A kinematic evaluation." Developmental Neurorehabilitation 17, no. 5 (2013): 318–26. http://dx.doi.org/10.3109/17518423.2013.776124.

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12

Khizhnikova, A. E., A. S. Klochkov, A. M. Kotov–Smolenskiy, N. A. Suponeva, and M. A. Piradov. "Dynamics of post-stroke hand paresis kinematic pattern during rehabilitation." Exosomes, no. 4 (August 31, 2019): 32–38. http://dx.doi.org/10.24075/brsmu.2019.056.

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According to the literature data, only 5–20% of post-stroke patients are able to restore the hand motor function completely. Correct goal setting and individual approach to the patient's functional recovery are important. Our study aimed to develop an algorithm of impaired hand motor functioning assessment for post-stroke patients and to determine the principles of the rehabilitation tactics choosing based on the biomechanical analysis. Twenty five patients with hemispheric stroke and 10 healthy volunteers participated in the study. Formal clinical observation scales (Fugl-Meyer Assessment, As

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13

Rozzi, Giacomo, Francesco P. Lo Muzio, Camilla Sandrini, et al. "Real-time video kinematic evaluation of the in situ beating right ventricle after pulmonary valve replacement in patients with tetralogy of Fallot: a pilot study." Interactive CardioVascular and Thoracic Surgery 29, no. 4 (2019): 625–31. http://dx.doi.org/10.1093/icvts/ivz120.

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Abstract OBJECTIVES The timing for pulmonary valve replacement (PVR) after tetralogy of Fallot repair is controversial, due to limitations in estimating right ventricular dysfunction and recovery. Intraoperative imaging could add prognostic information, but transoesophageal echocardiography is unsuitable for exploring right heart function. Right ventricular function after PVR was investigated in real time using a novel video-based contactless kinematic evaluation technology (Vi.Ki.E.), which calculates cardiac fatigue and energy consumption. METHODS Six consecutive patients undergoing PVR at 1

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14

Lewczuk, Dorota, and Ewa Metera-Zarzycka. "Horse phenotyping based on video image analysis of jumping performance for conservation breeding." PeerJ 7 (August 9, 2019): e7450. http://dx.doi.org/10.7717/peerj.7450.

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Background Many horse breeds in the world are reserved as genetic resources; however, their characteristics seem to be insufficiently clarified, especially in terms of horse performance. Two jumping ability evaluation methods have been used to compare different types of performance breeds and on this basis their applicability for precision phenotyping has been determined. Methods Jumping data of 186 young Polish Warmblood stallions (27 with an endangered status) bred for sport and multipurpose use was collected during their performance tests organised under identical environmental conditions f

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15

Vladimir, Potop, Dorgan Viorel, and Jurat Valeriu. "Improvement of Sports Technique Based on Biomechanical Indicators of Yurchenko Handspring Vault in Women’s Artistic Gymnastics." European Journal of Interdisciplinary Studies 3, no. 1 (2017): 42. http://dx.doi.org/10.26417/ejis.v3i1.42-52.

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The main purpose of this paper is the biomechanical analysis of the kinematic and dynamic indicators of sports technique used in Yurchenko handspring vault by means of the macro methods for exercises learning during the training basic specialization stage. This scientific approach led to the organization of an experimental study, using the research methods as follows: 1. Method of theoretical and methodological analysis of literature related to artistic gymnastics. 2. Method of evaluation of gymnastics exercises sports technique using the algorithmic analysis of the motion. 3. Video computeriz

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16

Vladimir, Potop, Dorgan Viorel, and Jurat Valeriu. "Improvement of Sports Technique Based on Biomechanical Indicators of Yurchenko Handspring Vault in Women’s Artistic Gymnastics." European Journal of Interdisciplinary Studies 3, no. 1 (2017): 42. http://dx.doi.org/10.26417/ejis.v3i1.p42-52.

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The main purpose of this paper is the biomechanical analysis of the kinematic and dynamic indicators of sports technique used in Yurchenko handspring vault by means of the macro methods for exercises learning during the training basic specialization stage. This scientific approach led to the organization of an experimental study, using the research methods as follows: 1. Method of theoretical and methodological analysis of literature related to artistic gymnastics. 2. Method of evaluation of gymnastics exercises sports technique using the algorithmic analysis of the motion. 3. Video computeriz

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17

Vladimir, Potop, Dorgan Viorel, and Jurat Valeriu. "Improvement of Sports Technique Based on Biomechanical Indicators of Yurchenko Handspring Vault in Women’s Artistic Gymnastics." European Journal of Interdisciplinary Studies 7, no. 1 (2017): 42. http://dx.doi.org/10.26417/ejis.v7i1.p42-52.

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The main purpose of this paper is the biomechanical analysis of the kinematic and dynamic indicators of sports technique used in Yurchenko handspring vault by means of the macro methods for exercises learning during the training basic specialization stage. This scientific approach led to the organization of an experimental study, using the research methods as follows: 1. Method of theoretical and methodological analysis of literature related to artistic gymnastics. 2. Method of evaluation of gymnastics exercises sports technique using the algorithmic analysis of the motion. 3. Video computeriz

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18

Tanaka, Toshiaki, Ryo Matsumura, and Takahiro Miura. "Influence of Varied Load Assistance with Exoskeleton-Type Robotic Device on Gait Rehabilitation in Healthy Adult Men." International Journal of Environmental Research and Public Health 19, no. 15 (2022): 9713. http://dx.doi.org/10.3390/ijerph19159713.

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This study aimed to clarify how the power-assist function of the hybrid assistive limb (HAL®), an exoskeleton-type gait-assist device, affected the gait characteristics of patients who wear it, specifically focusing on the “misalignment” of the robot joints and landmarks with the corresponding body parts. Five healthy adult men were video-recorded wearing the HAL® as they walked normally on a treadmill under seven conditions corresponding to the strengths and sites of robotic power assistance. For kinematic analysis, reflective markers were attached to the HAL® and the wearer at key locations,

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19

Alekseev, Vladimir V., Anna V. Tsareva, and Natalia V. Romantsova. "VIRTUAL DIGITAL 3D SENSOR. EVALUATION OF THE ACCURACY OF MEASURING THE PARAMETERS OF THE KINEMATIC PORTRAIT OF A PERSON." SOFT MEASUREMENTS AND COMPUTING 11, no. 60 (2022): 13–29. http://dx.doi.org/10.36871/2618-9976.2022.11.002.

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The article is devoted to the issue of a formalized description of the components of the uncertainty of the virtual digital scale of the control system built on the basis of video recorders in order to present it as a means of measurement. The analysis of the structure of the system is carried out in order to determine the hardware and methodological components, uncertainty. The modes of calibration, certification, control, the issues of creating digital twins based on the kinematic portrait of a person for use in rehabilitation systems in medicine and sports are considered. The creation of di

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20

Liu, Long, Hui-Hui Wang, Sen Qiu, Yun-Cui Zhang, and Zheng-Dong Hao. "Paddle Stroke Analysis for Kayakers Using Wearable Technologies." Sensors 21, no. 3 (2021): 914. http://dx.doi.org/10.3390/s21030914.

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Proper stroke posture and rhythm are crucial for kayakers to achieve perfect performance and avoid the occurrence of sport injuries. The traditional video-based analysis method has numerous limitations (e.g., site and occlusion). In this study, we propose a systematic approach for evaluating the training performance of kayakers based on the multiple sensors fusion technology. Kayakers’ motion information is collected by miniature inertial sensor nodes attached on the body. The extend Kalman filter (EKF) method is used for data fusion and updating human posture. After sensor calibration, the ka

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21

De Jesus, Kelly, Larissa M. Cardoso, and Karla De Jesus. "Metabolic, kinematic and coordinative behavior of a para swimmer with cerebral palsy." Brazilian Journal of Motor Behavior 16, no. 1 (2022): 57–68. http://dx.doi.org/10.20338/bjmb.v16i1.265.

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BACKGROUND: It has been increasingly necessary to assess and monitor the physiological and biomechanics variables of para swimmers to enlarge the current knowledge on how different impairments limit swimming performance and explain each competition class variability in metabolic and technical terms. AIM: To characterize the front crawl metabolic, kinematic, and coordination behaviors of a trained para swimmer subjected to an incremental protocol. METHOD: A 44-year-old male, with moderate right side hemiparesis of the body, performed a 200-m front crawl at 5 incrementally paces until exhaustion

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22

Skiba, Agnieszka, Jakub Marchewka, Amadeusz Skiba, et al. "Evaluation of the Effectiveness of Nordic Walking Training in Improving the Gait of Persons with Down Syndrome." BioMed Research International 2019 (April 15, 2019): 1–11. http://dx.doi.org/10.1155/2019/6353292.

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People with Down syndrome (DS) show dysfunction of gait, expressed by disturbed character of angular changes and values of the spatiotemporal parameters as compared to the physiological norm. It is known that exercises and various activities have positive effect on balance and gait, but there are only a few scientific proofs concerning above-mentioned in people with DS. Furthermore, the effect of Nordic Walking (NW) training on gait in people with DS is unexplored. We enrolled 22 subjects with DS, aged 25-40 years, with moderate intellectual disability. Participants were randomly divided into

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23

Stenum, Jan, Cristina Rossi, and Ryan T. Roemmich. "Two-dimensional video-based analysis of human gait using pose estimation." PLOS Computational Biology 17, no. 4 (2021): e1008935. http://dx.doi.org/10.1371/journal.pcbi.1008935.

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Human gait analysis is often conducted in clinical and basic research, but many common approaches (e.g., three-dimensional motion capture, wearables) are expensive, immobile, data-limited, and require expertise. Recent advances in video-based pose estimation suggest potential for gait analysis using two-dimensional video collected from readily accessible devices (e.g., smartphones). To date, several studies have extracted features of human gait using markerless pose estimation. However, we currently lack evaluation of video-based approaches using a dataset of human gait for a wide range of gai

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24

Balkó, Štefan, Iva Balkó, and Vladimír Süss. "Analýza pohybové struktury výpadu u dvou výkonnostně odlišných skupin šermířů." Studia sportiva 8, no. 1 (2014): 85–92. http://dx.doi.org/10.5817/sts2014-1-9.

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This study is focused on kinematic analysis in fencing lunge of different performance-related groups of fencers. The first group (n=7) consists of elite fencers of the Czech Republic, who are active in fencing an average of 12 years (±3,4). In the second group (n=7), there are fencers who are active in fencing up to two years. Subjects of our study performed lunge on a visual stimulus of LEDs, which is part of the Fitrosword device. The end of lunge was defined by hit of the target. The aim of this study was detection and charactrerization of movement structure in fencing lunge. Video recordin

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25

Kennedy, Robert S., Kevin S. Berbaum, William P. Dunlap, and Lawrence J. Hettinger. "Developing Automated Methods to Quantify the Visual Stimulus for Cybersickness." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 40, no. 22 (1996): 1126–30. http://dx.doi.org/10.1177/154193129604002204.

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Simulator sickness is a significant human factors issue in simulator and virtual environment systems. The extent to which users are adversely affected by sickness-inducing stimuli in virtual environments may hinder the behavioral goals sought (training, systems evaluation, etc.). To alleviate the problem, it is first necessary to accurately and reliably quantify the amount and type of visual motion stimulation that leads to motion sickness-like discomfort. This paper describes a human performance-based approach to the development of a system capable of measuring the visual stimulus for motion

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26

Sandmo, Stian Bahr, Andrew S. McIntosh, Thor Einar Andersen, Inga Katharina Koerte, and Roald Bahr. "Evaluation of an In-Ear Sensor for Quantifying Head Impacts in Youth Soccer." American Journal of Sports Medicine 47, no. 4 (2019): 974–81. http://dx.doi.org/10.1177/0363546519826953.

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Background: Wearable sensor systems have the potential to quantify head kinematic responses of head impacts in soccer. However, on-field use of sensors (eg, accelerometers) remains challenging, owing to poor coupling to the head and difficulties discriminating low-severity direct head impacts from inertial loading of the head from human movements, such as jumping and landing. Purpose: To test the validity of an in-ear sensor for quantifying head impacts in youth soccer. Study Design: Descriptive laboratory study. Methods: First, the sensor was mounted to a Hybrid III headform and impacted with

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27

Ruiz-García, Isidoro, Ismael Navarro-Marchal, Javier Ocaña-Wilhelmi, Alberto J. Palma, Pablo J. Gómez-López, and Miguel A. Carvajal. "Development and Evaluation of a Low-Drift Inertial Sensor-Based System for Analysis of Alpine Skiing Performance." Sensors 21, no. 7 (2021): 2480. http://dx.doi.org/10.3390/s21072480.

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In skiing it is important to know how the skier accelerates and inclines the skis during the turn to avoid injuries and improve technique. The purpose of this pilot study with three participants was to develop and evaluate a compact, wireless, and low-cost system for detecting the inclination and acceleration of skis in the field based on inertial measurement units (IMU). To that end, a commercial IMU board was placed on each ski behind the skier boot. With the use of an attitude and heading reference system algorithm included in the sensor board, the orientation and attitude data of the skis

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Velázquez, Jose S., Arsenio M. Iznaga-Benítez, Amanda Robau-Porrúa, Francisco L. Sáez-Gutiérrez, and Francisco Cavas. "New Affordable Method for Measuring Angular Variations Caused by High Heels on the Sagittal Plane of Feet Joints during Gait." Applied Sciences 11, no. 12 (2021): 5605. http://dx.doi.org/10.3390/app11125605.

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Gait is influenced by many factors, but one of the most prominent ones is shoe heel height. Optical motion tracking technology is widely used to analyze high-heeled gait, but it normally involves several high-quality cameras and licensed software, so clinics and researchers with low budgets cannot afford them. This article presents a simple, effective technique to measure the rotation angles on the sagittal plane of the ankle (tibiotalar) and toe (metatarsophalangeal) joints when no shoes (0 cm heel) and high-heeled shoes (2, 6 and 10 cm heels) are worn. The foot’s position was determined by a

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Ang, Cheng Loong, and Pui Wah Kong. "Field-Based Biomechanical Assessment of the Snatch in Olympic Weightlifting Using Wearable In-Shoe Sensors and Videos—A Preliminary Report." Sensors 23, no. 3 (2023): 1171. http://dx.doi.org/10.3390/s23031171.

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Traditionally, the biomechanical analysis of Olympic weightlifting movements required laboratory equipment such as force platforms and transducers, but such methods are difficult to implement in practice. This study developed a field-based method using wearable technology and videos for the biomechanical assessment of weightlifters. To demonstrate the practicality of our method, we collected kinetic and kinematic data on six Singapore National Olympic Weightlifters. The participants performed snatches at 80% to 90% of their competition one-repetition maximum, and the three best attempts were u

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30

Egenvall, Agneta, Hilary M. Clayton, Marie Eisersiö, Lars Roepstorff, and Anna Byström. "Rein Tension in Transitions and Halts during Equestrian Dressage Training." Animals 9, no. 10 (2019): 712. http://dx.doi.org/10.3390/ani9100712.

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In dressage, the performance of transitions between gaits and halts is an integral part of riding sessions. The study aimed to evaluate rein tension before, during and after the transitions between different gaits and the transitions into halts. The kinematic (inertial measurement units) data for the head and croup, and rein tension data, were collected (128 Hz) from six professional riders each riding three of their own horses, training levels varying from basic to advanced, during normal training sessions. The activities were categorised into gaits, halts and transitions based on video evalu

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Shalmanov, Anatoly, Vitaly Skotnikov, Elena Lukunina, and Janis Lanka. "EFFICIENCY OF SNATCH TECHNIQUE IN HIGH LEVEL WEIGHTLIFTERS." Baltic Journal of Sport and Health Sciences 2, no. 97 (2015): 27–33. http://dx.doi.org/10.33607/bjshs.v2i97.85.

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Background. Rich theoretical and experimental evidence on the biomechanics of weightlifting exercises has currently been collected (Bauman, Gross, & Quade, 1988; Garhammer, 1991; Gourgoulis, Aggelousis, & Mavromatis, 2000; Isaka, Okada, & Funato, 1996; Шалманов, Скотников, & Панин, 2012). Most of the studies were mainly carried out in laboratory settings, with long-term treatment of the obtained data. In recent years, scientists’ interest has shifted to the study and evaluation of the technical mastery of athletes in the setting of the highest level competition, in the extreme

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Darzian Rostami, Alireza, Anagha Katthe, Aryan Sohrabi, and Arash Jahangiri. "Predicting Critical Bicycle-Vehicle Conflicts at Signalized Intersections." Journal of Advanced Transportation 2020 (December 2, 2020): 1–16. http://dx.doi.org/10.1155/2020/8816616.

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Continuous development of urban infrastructure with a focus on sustainable transportation has led to a proliferation of vulnerable road users (VRUs), such as bicyclists and pedestrians, at intersections. Intersection safety evaluation has primarily relied on historical crash data. However, due to several limitations, including rarity, unpredictability, and irregularity of crash occurrences, quantitative and qualitative analyses of crashes may not be accurate. To transcend these limitations, intersection safety can be proactively evaluated by quantifying near-crashes using alternative measures

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Barbosa, Tiago M., Kelly de Jesus, J. Arturo Abraldes, et al. "Effects of Protocol Step Length on Biomechanical Measures in Swimming." International Journal of Sports Physiology and Performance 10, no. 2 (2015): 211–18. http://dx.doi.org/10.1123/ijspp.2014-0108.

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Background:The assessment of energetic and mechanical parameters in swimming often requires the use of an intermittent incremental protocol, whose step lengths are corner stones for the efficiency of the evaluation procedures.Purpose:To analyze changes in swimming kinematics and interlimb coordination behavior in 3 variants, with different step lengths, of an intermittent incremental protocol.Methods:Twenty-two male swimmers performed n × di variants of an intermittent and incremental protocol (n ≤ 7; d1 = 200 m, d2 = 300 m, and d3 = 400 m). Swimmers were videotaped in the sagittal plane for 2

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Oppelt, Konrad, Aidan Hogan, Felix Stief, Paul Alfred Grützner, and Ursula Trinler. "Movement Analysis in Orthopedics and Trauma Surgery – Measurement Systems and Clinical Applications." Zeitschrift für Orthopädie und Unfallchirurgie 158, no. 03 (2019): 304–17. http://dx.doi.org/10.1055/a-0873-1557.

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Abstract Background Technical development lead to an enhancement of clinical movement analysis in the last few decades and expanded its research and clinical applications. Since the mid 20th century, human movement analysis has made its way into clinical practice, e.g. in treating poliomyelitis and infantile cerebral palsy. Today, it has a wide range of applications in various clinical areas. The aim of this narrative review is to illustrate the variety of camera-based systems for human movement analysis and their clinical applications, specifically in the field of orthopaedics and trauma surg

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Armstrong, Benjamin D., Mitchell L. Cordova, Christopher D. Ingersoll, and Nancy F. Lawrence. "Delayed-Onset Muscle Soreness Does Not Alter the Kinematics and Kinetics of the Squat-Lifting Technique." Journal of Sport Rehabilitation 10, no. 3 (2001): 184–95. http://dx.doi.org/10.1123/jsr.10.3.184.

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Context:Little research has been done evaluating the effects of muscle soreness on a lifting task.Objective:To examine the effects of delayed-onset muscle soreness (DOMS) in the thigh musculature on kinematic and kinetic variables associated with the squat-lifting technique.Design:Pretest–posttest repeated measures, with treatment as the independent variable (DOMS and no DOMS of the thigh musculature).Setting:Research laboratory.Participants:Twenty healthy college students.Intervention:Subjects were videotaped lifting a 157-N crate before and after DOMS inducement.Main Outcome Measures:A 2-dim

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Lo Muzio, Francesco Paolo, Giacomo Rozzi, Stefano Rossi, et al. "Artificial Intelligence Supports Decision Making during Open-Chest Surgery of Rare Congenital Heart Defects." Journal of Clinical Medicine 10, no. 22 (2021): 5330. http://dx.doi.org/10.3390/jcm10225330.

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The human right ventricle is barely monitored during open-chest surgery due to the absence of intraoperative imaging techniques capable of elaborating its complex function. Accordingly, artificial intelligence could not be adopted for this specific task. We recently proposed a video-based approach for the real-time evaluation of the epicardial kinematics to support medical decisions. Here, we employed two supervised machine learning algorithms based on our technique to predict the patients’ outcomes before chest closure. Videos of the beating hearts were acquired before and after pulmonary val

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Stravogianni, Vasiliki, Theodoros Samaras, Constantin M. Boscos, Athina Basioura, Ioannis Markakis, and Ioannis A. Tsakmakidis. "Investigating Visual Monitoring of the Scrotum as a Supplementary Tool for Boar Semen Quality Evaluation." Veterinary Sciences 10, no. 1 (2022): 9. http://dx.doi.org/10.3390/vetsci10010009.

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Farm animals behavior research uses video cameras, mainly for visual observation and recording. The purpose of this feasibility study was to enrich the predictable methods of boar semen production capacity by correlating sperm variables with the scrotal contractions (SC) frequency and intensity. A video camera was used to record the reaction of the scrotum during ejaculation. The respective collected ejaculates were evaluated and semen parameters, such as viability, morphology, membranes functional integrity and kinematics, were determined. The camera recorded the scrotal contractions/relaxati

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Liu, Zhenming. "Application of Long-Term and Short-Term Memory Neural Network in Technical Evaluation of Hurdle Track and Field." Security and Communication Networks 2022 (May 6, 2022): 1–11. http://dx.doi.org/10.1155/2022/3095032.

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In order to study the application of long-term and short-term memory neural networks in the technical evaluation of hurdle track and field, firstly, the related contents of long-term and short-term memory neural networks and hurdle track and field sports are analyzed, the variation characteristics of kinematics and surface electromyography of swinging leg in the landing link of lower hurdle are analyzed, and the relationship between surface electromyography and kinematics parameters is analyzed. Then, the kinematics and surface EMG data of three male hurdlers in the hurdle team and two men in

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Butler, Lauren, Alexa Martinez, Dai Sugimoto, et al. "The Reliability of Two Dimensional Kinematic Assessment of a 45-Degree Side Step Cut." Orthopaedic Journal of Sports Medicine 10, no. 5_suppl2 (2022): 2325967121S0052. http://dx.doi.org/10.1177/2325967121s00523.

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Background: Up to 70% of all anterior cruciate ligament (ACL) injuries occur via a non-contact mechanism involving deceleration and direction change on a planted foot. Clinical screening tools analyzing movement patterns during a cutting task are reliable and valid. The Expanded Cutting Alignment Scoring Tool (E-CAST) is a reliable tool to qualitatively assess trunk and lower extremity (LE) alignment during a 45-degree side step cut (SSC). Previous works found two-dimensional (2D) kinematic analysis more reliable than qualitative assessments when evaluating jumping and squatting movements. How

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Fassina, Lorenzo, Antonio Di Grazia, Fabio Naro, Lucia Monaco, Maria Gabriella Cusella De Angelis, and Giovanni Magenes. "Video Evaluation of the Kinematics and Dynamics of the Beating Cardiac Syncytium: An Alternative to the Langendorff Method." International Journal of Artificial Organs 34, no. 7 (2011): 546–58. http://dx.doi.org/10.5301/ijao.2011.8510.

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Atmajati, ED, and RA Salam. "Feasibility of Smartphone Camera Utilization and Power Point-based Video Analyzer on Kinematic Motion Experiment: An Inexpensive Method." International Journal of Applied Sciences and Smart Technologies 2, no. 2 (2020): 67–78. http://dx.doi.org/10.24071/ijasst.v2i2.2696.

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This study reports on the use of smartphone camera and power point application to analyze the kinematic motion experiment. This method is intended to make a better understanding of student’s concept using the tools that are commonly owned by students. The experiments performed in this study were one-dimensional (1-D) represented by falling motion and two-dimensional (2-D) using parabolic motion. In evaluating the experimental results, the obtained data were compared to the theoretical values that were calculated using analytical approach. The use of this method shows great measurement results

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Sawacha, Zimi, Fabiola Spolaor, Weronika Joanna Piątkowska, et al. "Feasibility and Reliability Assessment of Video-Based Motion Analysis and Surface Electromyography in Children with Fragile X during Gait." Sensors 21, no. 14 (2021): 4746. http://dx.doi.org/10.3390/s21144746.

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Fragile X Syndrome (FXS), the leading form of inherited intellectual disability and autism, is characterized by specific musculoskeletal conditions. We hypothesized that gait analysis in FXS could be relevant for the evaluation of motor control of gait, and help the understanding of a possible correlation between functional and intellectual abilities. Typical deficits in executive control and hyperactivity have hampered the use of standard gait analysis. The aim of our study was to quantitatively assess musculoskeletal alterations in FXS children in standard ambulatory conditions, in a friendl

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Christovão, F. G., R. M. L. Barros, C. B. Martins, et al. "Three-dimensional kinematic analysis of head and limb movements of lame and non-lame colts." Equine and Comparative Exercise Physiology 4, no. 1 (2007): 31–36. http://dx.doi.org/10.1017/s1478061507750259.

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AbstractLameness manifests itself during the movement of the animal or at rest, indicating a structural or functional disturbance in one or more limbs. Videographic analyses allow the qualitative and quantitative investigation of the movement, reducing the subjectivity of evaluations. The objective was to record the alterations in the movement of the head and limbs of horses in a lame and non-lame condition. Video cameras (60 Hz) and computational methods were used. Six Purebred Arabian colts were filmed on a treadmill, at walk and at trot, before and after induction of lameness. Lameness was

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Staniak, Zbigniew, Krzysztof Buśko, Michał Górski, and Anna Pastuszak. "Accelerometer profile of motion of the pelvic girdle in breaststroke swimming." Journal of Human Kinetics 52, no. 1 (2016): 147–56. http://dx.doi.org/10.1515/hukin-2016-0002.

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Abstract The aim of the study was to develop a method for measurement and analysis of kinematics of the pelvic girdle movement in breaststroke swimming to support training of technical skills. The measurements were performed in five elite breaststroke swimmers. A recording device for triaxial accelerations and triaxial rotational angular velocity was mounted on the dorsal part of the pelvic girdle of the athlete. The task of the athlete was to swim one length of the 50 m swimming pool with the intensity similar to competition. From the consecutive cycles of swimming motion, we developed indivi

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Maskeliūnas, Rytis, Audrius Kulikajevas, Robertas Damaševičius, Julius Griškevičius, and Aušra Adomavičienė. "Biomac3D: 2D-to-3D Human Pose Analysis Model for Tele-Rehabilitation Based on Pareto Optimized Deep-Learning Architecture." Applied Sciences 13, no. 2 (2023): 1116. http://dx.doi.org/10.3390/app13021116.

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The research introduces a unique deep-learning-based technique for remote rehabilitative analysis of image-captured human movements and postures. We present a ploninomial Pareto-optimized deep-learning architecture for processing inverse kinematics for sorting out and rearranging human skeleton joints generated by RGB-based two-dimensional (2D) skeleton recognition algorithms, with the goal of producing a full 3D model as a final result. The suggested method extracts the entire humanoid character motion curve, which is then connected to a three-dimensional (3D) mesh for real-time preview. Our

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Supej, Matej. "Differential Specific Mechanical Energy as a Quality Parameter in Racing Alpine Skiing." Journal of Applied Biomechanics 24, no. 2 (2008): 121–29. http://dx.doi.org/10.1123/jab.24.2.121.

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An important question in alpine skiing is how to determine characteristics of well-performed ski turns, an issue that has become more crucial with the arrival of new carving skis. This article introduces a new method for estimating the quality of skiing at each point of observation based on mechanical energy behavior that can be measured using established motion analysis techniques. It can be used for single-or multiple-skier analyses for evaluation of skiing technique as well as racing tactics. An illustration of its use is shown by analyzing 16 top-level racers using a 3-D kinematical system

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Leonardi, Alessandro, Marina Pirulli, Monica Barbero, et al. "Impact of Debris Flows on Filter Barriers: Analysis Based on Site Monitoring Data." Environmental and Engineering Geoscience 27, no. 2 (2021): 195–212. http://dx.doi.org/10.2113/eeg-d-20-00013.

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ABSTRACT Debris flows are one of the most complex and devastating natural phenomena, and they affect mountainous areas throughout the world. Structural measures are currently adopted to mitigate the related hazard in urbanized areas. However, their design requires an estimate of the impact force, which is an open issue. The numerous formulae proposed in the literature require the assignment of empirical coefficients and an evaluation of the kinematic characteristics of the incoming flow. Both are generally not known a priori. In this article, we present the Grand Valey torrent site (Italian Al

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Isakov, E., O. Keren, and N. Benjuya. "Transtibial amputee gait: Timedistance parameters and EMG activity." Prosthetics and Orthotics International 24, no. 3 (2000): 216–20. http://dx.doi.org/10.1080/03093640008726550.

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Gait analysis of transtibial (TT) amputees discloses asymmetries in gait parameters between the amputated and sound legs. The present study aimed at outlining differences between both legs with regard to kinematic parameters and activity of the muscles controlling the knees. The gait of 14 traumatic TT amputees, walking at a mean speed of 74.96 m/min, was analysed by means of an electronic walkway, video camera, and portable electromyography system. Results showed differences in kinematic parameters. Step length, step time and swing time were significantly longer, while stance time and single

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Močnik, Grega, Zdravko Kačič, Riko Šafarič, and Izidor Mlakar. "Capturing Conversational Gestures for Embodied Conversational Agents Using an Optimized Kaneda–Lucas–Tomasi Tracker and Denavit–Hartenberg-Based Kinematic Model." Sensors 22, no. 21 (2022): 8318. http://dx.doi.org/10.3390/s22218318.

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In order to recreate viable and human-like conversational responses, the artificial entity, i.e., an embodied conversational agent, must express correlated speech (verbal) and gestures (non-verbal) responses in spoken social interaction. Most of the existing frameworks focus on intent planning and behavior planning. The realization, however, is left to a limited set of static 3D representations of conversational expressions. In addition to functional and semantic synchrony between verbal and non-verbal signals, the final believability of the displayed expression is sculpted by the physical rea

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Hansen, Rudi, Mathilde Lundgaard-Nielsen, and Marius Henriksen. "Visual assessment of dynamic knee joint alignment in patients with patellofemoral pain: an agreement study." PeerJ 9 (October 19, 2021): e12203. http://dx.doi.org/10.7717/peerj.12203.

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Background Assessment of knee kinematics plays an important role in the clinical examination of patients with patellofemoral pain (PFP). There is evidence that visual assessments are reliable in healthy subjects, but there is a lack of evidence in injured populations. The purpose of this study was to examine the intra- and interrater agreement in the visual assessment of dynamic knee joint alignment in patients with PFP. Methods The study was a cross-sectional agreement study. Sixty participants (42 females) were included. We assessed the intra- and interrater agreement of two functional tests

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