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most distinctive patterns between individual male skaters based on their normal force patterns. 

most distinctive patterns between individual male skaters based on their normal force patterns. 

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This study performed an analysis of the push-off forces of elite-short-track speed skaters using a new designed instrumented short-track speed skate with the aim to improve short-track skating performance. Four different skating strokes were distinguished for short-track speed skaters at speed. The strokes differed in stroke time, force level in bo...

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... all male participants skated at the same velocities, and the four general stroke patterns could be distinguished, we do see diversity between elite male speed skaters in the executions of the four strokes. The normal force levels (F N ) differed between skaters at the same speed ( Figure 5), but were not related to their ranking in PR. Since the skaters skated at the same velocities, differences in normal force levels seem to point at a difference in effi- ciency. Also, the fact that the female participants skated at lower velocities than the men, but did not apply lower normal forces (corrected to body weight), hangs towards an efficiency measure. To gain insight into this effect, data of individual skaters at different velocities and preferably some full-out exercises would be necessary. Also, measuring the velocity of separate strokes would be helpful. Expanding the number of participants would not only be hard-because the study is focused on top-level athletes-, but also doubtful whether it would benefit the results. It would certainly increase the robustness, but also decrease the sensitivity of an already homogeneous data-set with small margins. In the future, the instrumented skate and push-off force profiles can be used to determine the efficiency of elite short-track skaters and help to give training advice whether the skater should focus on improving strength or ...
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... skating at similar speeds, the applied normal force levels (F N ) differed between the skaters. Figure 5 shows the most distinct force patterns between male individual speed skaters. The graphs show diversity between the elite male speed skaters in the executions of the four strokes, but this diversity could, in this study, not be related to PR with the chosen ...
Context 3
... skating at similar speeds, the applied normal force levels (F N ) differed between the skaters. Figure 5 shows the most distinct force patterns between male individual speed skaters. The graphs show diversity between the elite male speed skaters in the executions of the four strokes, but this diversity could, in this study, not be related to PR with the chosen measures. ...
Context 4
... all male participants skated at the same velocities, and the four general stroke patterns could be distinguished, we do see diversity between elite male speed skaters in the executions of the four strokes. The normal force levels (F N ) differed between skaters at the same speed ( Figure 5), but were not related to their ranking in PR. Since the skaters skated at the same velocities, differences in normal force levels seem to point at a difference in effi- ciency. ...

Citations

... On the other hand, in the field of biomedical engineering, sports-related technologies are being developed. These technologies can be used to record physical variables, such as heart rate [7]; analyze sports gestures [8][9][10]; and provide support in monitoring and training the athlete [11,12]. Different investigations have also been carried out on the speed of skaters and the importance of this variable to his or her sport [13][14][15]. ...
Chapter
Internet of things technology has grown in recent years. One of the sectors where it has had the greatest reception is sports. In Colombia, for every 61 high-performance athletes there is, on average, one coach. For this reason, the purpose of this work was to validate an intelligent device that enables remote monitoring of the speed of high-performance roller skaters using the Internet of things. The authors equipped professional Luigino skates with electronic instrumentation, with which it was possible to measure a high-performance skater’s linear speed and distance traveled of by means of Hall effect sensors and a magnet. To eliminate false measurements, a distance sensor was also installed in the skate skids to determine when the skate was in contact with the ground. This information was sent to the Internet through the MQTT protocol to a main broker that was responsible for the processing and visualization of the data. The linear velocity was validated at four speeds (0.8, 5, 8 and 10 km/h) using a treadmill. The error of the measurements was between 1% and 5%.
... The application of the method developed by Samozino et al. (2016) during ice hockey skating sprint should be based on the assumption that the velocity curve describes a monoexponential function with a plateau at V max , as consistently reported during sprint running task (Di Prampero et al., 2005;Morin, Jeannin, Chevallier, & Belli, 2006). The force production during forward skating has been mainly assessed on a skating treadmill or using a force transducer on the skates (Stidwill, Pearsall, & Turcotte, 2010;Upjohn, Turcotte, Pearsall, & Loh, 2008;van der Kruk, Reijne, de Laat, & Veeger, 2018). On-ice conditions do not allow to use force plates (i.e. ...
Article
The aims of this study were to ensure that the skating velocity describes a mono-exponential function in order to determine the reliability of radar-derived profiling results from skating sprint accelerations applying sprint running force-velocity assessment approach. Eleven young highly-trained female ice hockey players performed two 40-m skating sprints on two separate days to evaluate inter-trial and test-retest reliability. The velocity-time data recorded by a radar device was used to calculate the kinetics variables of the skating sprint acceleration: maximal theoretical force (F0), maximal theoretical velocity (V0), maximal theoretical power (Pmax) and the slope of the linear force-velocity relationship (SFV). SFV and SFVrel variables (the slope of the linear relationship between horizontal force relative to body mass and velocity) demonstrated ‘low’ to ‘moderate’ intra-class correlation coefficients (ICC). All other variables revealed ‘acceptable’ inter-trial and test-retest reliability (ICC ≥ 0.75 and coefficient of variation [CV] ≤ 10%). Furthermore, test-retest reliability (ICC and CV) and sensitivity [Standard Error of Measurement (SEMs) ≤ Small Worthwhile Change (SWCs)] were higher when averaging the two trials compared to the best trial (40-m split time) only. These findings offer a promising and simple method to monitor training-induced changes in macroscopic mechanical variables of ice hockey skating performance.
... Biochemical transformations in the blood are mainly a reflection of the processes occurring in the working muscles and in the internal organs of athletes. They depend on the nature of the work and allow assessing the involvement degree of various biochemical processes in muscles' energy supply [6]. All the obtained data on blood biochemistry are presented in tables 1, 2 and 3. ...
... At each stage of the sportsmanship development, special attention should be paid to training and improving technical and tactical actions, since in short track it directly affects the outcome of the competition at a certain distance [6,10,21,22,23]. A competent use of technical and tactical methods in the process of competition activity by a short tracker allows him or her to get leading positions in a race followed by admission to the next round of competitions and entering not only the finals, but also a group of the three strongest award-winning athletes [9,13,14,19]. The problem is that this issue is not sufficiently considered in theory and practice, but its solution will provide significant improvement of the athletic performance of 14-16-years-old short trackers. ...
Article
Мета: розробка моделі для теоретичного аналізу і оцінки оптимальних біомеханічних характеристик проходження фази повороту спортсменів шорт-треку з використанням існуючих біомеханічних ергогенних засобів та інформаційних технологій в тренувальному процесі. Матеріал і методи: теоретичний аналіз науково-методичної літератури, аналіз Інтернет-ресурсів, педагогічне спостереження, відеозйомка, біомеханічний аналіз рухових характеристик. Тестову групу складали 10 юних спортсменів з шорт-треку 9-12 років та 5 спортсменів з шорт-треку віком 18-24 років, які займаються в МСДЮСШ олімпійського резерву м. Харкова з шорт-треку та мають не менше трьох тренувань на тиждень (від 1 року, для юних спортсменів) та регулярні заняття п’ять разів на тиждень (протягом 6-10 років, для дорослих спортсменів). Результати: в роботі теоретично проаналізовано характеристики техніки проходження фази повороту шорт-трековиків засобами біомеханічного аналізу. Розрахунковим шляхом визначено теоретичні залежності показників проходження фази повороту: швидкість, кут нахилу корпусу спортсмена в повороті, положення загального центру мас тіла та їх взаємозв’язок. Виділено основні помилки техніки виконання рухових дій спортсменів початківців у фазі повороту. Висновки: дані теоретичні дослідження підтверджують доцільність використання спеціальних засобів для створення умов, які моделюють в просторі реальну ситуацію проходження спортсменом шорт-треку повороту на одному ковзані, а тренеру дозволять контролювати всі характеристики правильного виконання рухів юних спортсменів-початківців з точки зору біомеханіки. Обґрунтовано використання спеціальних пружних стрічок, як ергогенних засобів для вдосконалення рухових дій спортсменів з шорт-треку. Вказано напрямки покращення біомеханічних показників, які спортсмен здатний реалізувати на практиці. Ключові слова: біомеханіка, шорт-трек, фаза повороту, технічна підготовка спортсменів, аналіз рухових дій.
Article
The purpose of the work was to characterize the 4-year preparation cycle for the Winter Olympic Games in Pyongyang (2018), the leading Polish speed skater M.W. Longitudinal tests included assessment of aerobic and anaerobic exercise capacity determined in laboratory tests, respectively in the graded bicycle ergometer test and in the Wingate test performed with the lower extremity. The longitudinal data from exercise tests obtained in the analyzed 4-year period of preparation for the Olympic Games clearly indicate a significant improvement in the skater's exercise capacity. In the examined period of 2015-2018, the athlete obtained an increase in VO2max value by 6.5% to the level of 55.8 ml/kg/min. The nature of the observed changes in selected exercise indicators corresponded to the assumptions and implementation of training plans. The examined athlete was very well prepared for qualifying starts in October-November 2017 and she won three Olympic qualifications at distances 500, 1000 and 1500 m. During the Olympic Games, the Polish representative started the competition with starts at distances 1500 (20th place) and 500 m (28th place). At the leading distance of 1000 m, the competitor started at her level, reaching 12th place thus fulfilling the pre-start assumptions.
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The study emphasized the necessity of kinesiology and biomechanical movement analysis in today's physical education, kinesiotherapy, and sports. Our experiment observed a biomechanical motion configuration of semi-squat knee flexion, vertical position, angle, speed, and acceleration. The Kinovea software, version 0.9.3, is utilized as a study tool for biomechanical investigation employing some specific kinesiological characteristics of the movement. The findings of the biomechanical action emphasized the unique semi-squat knee flexion and extension, displaying the complete action from a certain linear angle, angular velocity, and acceleration.
Chapter
Skating includes several types of ice and roller skating. Injuries from skating are typically traumatic injuries or overuse injuries. Novice and less experienced skaters fall more often and sustain concussions and fractures of the wrist and ankle. Experienced skaters fall when they attempt risky techniques, but tend to get more overuse tendinitis, bursitis, blisters, and patellofemoral pain.
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In the last few decades, a number of technological developments have advanced the spread of wearable sensors for the assessment of human motion. These sensors have been also developed to assess athletes’ performance, providing useful guidelines for coaching, as well as for injury prevention. The data from these sensors provides key performance outcomes as well as more detailed kinematic, kinetic, and electromyographic data that provides insight into how the performance was obtained. From this perspective, inertial sensors, force sensors, and electromyography appear to be the most appropriate wearable sensors to use. Several studies were conducted to verify the feasibility of using wearable sensors for sport applications by using both commercially available and customized sensors. The present study seeks to provide an overview of sport biomechanics applications found from recent literature using wearable sensors, highlighting some information related to the used sensors and analysis methods. From the literature review results, it appears that inertial sensors are the most widespread sensors for assessing athletes’ performance; however, there still exist applications for force sensors and electromyography in this context. The main sport assessed in the studies was running, even though the range of sports examined was quite high. The provided overview can be useful for researchers, athletes, and coaches to understand the technologies currently available for sport performance assessment.