Isokinetic torque imbalances of shoulder of the french women's national water polo team

Olivier, Nicolas; Daussin, Frédéric N.

doi:10.1016/j.scispo.2018.10.003

Cited by 7 publications

(6 citation statements)

References 25 publications

(34 reference statements)

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“…Considering that there is a sudden change of moment in the start-stop phase of motion, and for a specific subject, the lifting trajectory that the manipulator can complete when lifting at each joint plane is related to its workspace, the range of lifting angle in different lifting planes is different [ 21 ].…”

Section: Motion Analysis Of Man-machine Coupling Systemmentioning

confidence: 99%

Static Model of Athlete’s Upper Limb Posture Rehabilitation Training Indexes

Sun

et al. 2022

BioMed Research International

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With the gradual expansion of the development of sports, the level of sports has been rapidly improved. Athletes have to carry out high-intensity and systemic technical movements in training and competition. Some sports have the greatest burden on the shoulder joint. From the observation and investigation of the injured parts of athletes, it is found that the shoulder joint is the most common sports injury, which is the most typical sports injury. Based on the problem of insufficient strength and endurance reserve after rehabilitation of shoulder external rotator injury, it will cause muscle tension and poor extensibility. To prove the improvement effect of functional training and posture index calibration on the poor posture of the shoulder, considering the measurement of global passive torque, this paper uses a limited set of joint angles and corresponding passive torque data in the upper arm lifting trajectory to train the neural network and uses the trained network to predict the passive torque in other upper arm trajectories. The kinematics model of the shoulder joint is established, and the human-computer interaction experiment is designed on the platform of the gesture index manipulator. The passive and active torque components of the shoulder joint in the human-computer interaction process are calculated by measuring the man-machine interaction force of the subjects in the motion state, which is used as the basis for evaluating the active motion intention of the subjects. Surface electromyography (SEMG) was used to calibrate and verify the attitude index of shoulder active torque. The method proposed in this paper is helpful to achieve more efficient on-demand assisted rehabilitation training exercises, which is of great significance to improve the level of rehabilitation training.

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Section: Motion Analysis Of Man-machine Coupling Systemmentioning

confidence: 99%

Static Model of Athlete’s Upper Limb Posture Rehabilitation Training Indexes

Sun

et al. 2022

BioMed Research International

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“…Imbalance commonly refers to a modi cation of the strength balance between agonist and antagonist muscles that could accompany a proven pathology, articular con ict or functional impairment. Although no prospective study has been conducted to determine what proportion of a muscle imbalance can cause an injury in an athlete, these ratios are also used in injury prevention in sport because for many authors they constitute an element of functional speci city of joints [29]. However, the primary means to determine the ratios between agonist and antagonist muscles is the use of isokinetic dynamometers, which are very expensive and associated with di cult manipulation.…”

Section: Discussionmentioning

confidence: 99%

Isometric Strength Database for Muscle Maximal Voluntary Endurance Field Tests: Normative Data.

Janik

Toulotte

Seichepine

et al. 2020

Preprint

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Background: Different field tests are used to evaluate muscular capacity, in particular maximal voluntary endurance. However, although there are some normative values for a few muscle endurance tests, these do not consider the mass, size or age of individuals, which are well-known factors that influence muscle performance.Hypothesis/Purpose: The purpose of this study was to investigate the test-retest reliability of 8 field tests and establish muscle endurance norms, in an healthy population, based on their anthropometric characteristics which could permit to evaluate at best the entire muscle function in a quick manner.Design:Case series. Methods:This study was conducted in two phases. The first phase was to check the reproducibility inter- and intra-assessor for 8 isometric muscle fields tests on twenty volunteered subjects age of 40.9 ± 11.6 years old. The second part was to establish muscle maximal voluntary endurance norms according of these tests on a total of 400 healthy participants segmented by age (50 males and females by age bracket: 20-29; 30-39; 40-49; 50-59 years old, for a total of 200 males and 200 females).Results:The intra and inter-assessor reproducibility tests was very high for all muscle measurements (the ICC varied between 0.915 and 0.996). Good sensitivity is observed for all isometric tests highlights with simple linear regression test demonstrating a significant impact for the variable age for all tests (p<0.001). Each muscle belt presents same ratio regardless of the age and gender group. The simultaneous multiple regression analyses highlight that the anthropometric characteristics of subjects influence significantly the performance of isometric tests. Conclusion:This study has permitted to established prediction equations in an healthy population according to their anthropometric characteristics as well as agonist/antagonist ratios for eight muscle isometric field tests after to be demonstrated an excellent reproducibility of all tests.

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“…Although other authors have published normative values on shoulder strength in water polo players, [60][61][62][63] only one group has included an injured sample in their studies. 46 47 Hams et al assessed shoulder strength in 15 national-level water polo athletes using a hand-held dynamometer and standardised measurement protocol.…”

Section: Shoulder Strength and Muscle Imbalancesmentioning

confidence: 99%

Prevalence and mechanisms of injuries in water polo: a systematic review

Croteau

Brown

Pearsall

et al. 2021

BMJ Open Sport Exerc Med

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ObjectiveTo summarise the information available in the literature on the prevalence of injuries in water polo and injury risk factors.MethodsProtocol was registered on Open Science Framework. MEDLINE, CINAHL, Embase and SPORTDiscus databases were searched for keywords relating to water polo and injuries on 3 February 2021. References were searched for additional studies. Only original research papers in English or French were included, and studies without an injured group were excluded. A data extraction file was made based on the Cochrane Collaboration recommendations. Study quality was evaluated with the Newcastle-Ottawa scales for cohorts and a modified version for cross-sectional studies.ResultsThe initial search yielded 581 articles, with 5 more added from reference lists, but only 41 remained after removing duplicates and applying inclusion/exclusion criteria. Thirty-one articles identified the head, fingers and shoulders as the most common sites of injury. Ten articles on mechanism of injury focused mainly on the shoulder, with degenerative changes, posture, scapular alignment, strength, flexibility and overhead shooting kinematics as the main injury risk factors. Publication types included cohort studies, cross-sectional studies, and one case series.ConclusionsMost traumatic injuries affect the hands and the head from unexpected contact with the ball or opponents. Conversely, training injuries seem to affect mainly the shoulder area. Low level evidence suggests a correlation between shoulder injuries and lack of strength or flexibility as well as large volumes of overhead throwing. Further prospective research is needed to investigate risk factors for other body areas.

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Isokinetic torque imbalances of shoulder of the french women's national water polo team

Cited by 7 publications

References 25 publications

Static Model of Athlete’s Upper Limb Posture Rehabilitation Training Indexes

Static Model of Athlete’s Upper Limb Posture Rehabilitation Training Indexes

Isometric Strength Database for Muscle Maximal Voluntary Endurance Field Tests: Normative Data.

Prevalence and mechanisms of injuries in water polo: a systematic review

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