Reliability of 2D kinematics during landing of volleyball athletes after exhaustion

Carvalho, Caio Augusto Mendes de; Guirelli, Agnes Ramos; Santos, Julia M.; Felício, Lilian Ramiro

doi:10.1016/j.jbmt.2021.05.016

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…Interestingly, the beta application based on computer vision demonstrated lower SEM than the two-dimensional (2D) analysis of the frontal-plane knee valgus [35]. Furthermore, the MCD observed in our study was akin to that reported by Carvalho et al in professional volleyball athletes, but in our case, during landing after a jump [36]. There is potential for the beta application based on computer vision to evolve.…”

Section: Discussionsupporting

confidence: 60%

A Beta Version of an Application Based on Computer Vision for the Assessment of Knee Valgus Angle: A Validity and Reliability Study

et al. 2023

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Background: In handball, the kinematics of the frontal plane seem to be one of the most important factors for the development of lower limb injuries. The knee valgus angle is a fundamental axis for injury prevention and is usually measured with 2D systems such as Kinovea software (Version 0.9.4.). Technological advances such as computer vision have the potential to revolutionize sports medicine. However, the validity and reliability of computer vision must be evaluated before using it in clinical practice. The aim of this study was to analyze the test-retest and inter-rater reliability and the concurrent validity of a beta version app based on computer vision for the measurement of knee valgus angle in elite handball athletes. Methods: The knee valgus angle of 42 elite handball athletes was measured. A frontal photo during a single-leg squat was taken, and two examiners measured the angle by the beta application based on computer vision at baseline and at one-week follow-up to calculate the test-retest and inter-rater reliability. A third examiner assessed the knee valgus angle using 2D Kinovea software to calculate the concurrent validity. Results: The knee valgus angle in the elite handball athletes was 158.54 ± 5.22°. The test-retest reliability for both examiners was excellent, showing an Intraclass Correlation Coefficient (ICC) of 0.859–0.933. The inter-rater reliability showed a moderate ICC: 0.658 (0.354–0.819). The standard error of the measurement with the app was stated between 1.69° and 3.50°, and the minimum detectable change was stated between 4.68° and 9.70°. The concurrent validity was strong r = 0.931; p < 0.001. Conclusions: The computer-based smartphone app showed an excellent test-retest and inter-rater reliability and a strong concurrent validity compared to Kinovea software for the measurement of the knee valgus angle.

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Section: Discussionsupporting

confidence: 60%

A Beta Version of an Application Based on Computer Vision for the Assessment of Knee Valgus Angle: A Validity and Reliability Study

et al. 2023

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“…The results obtained are that the soccer field requires a tool that is able to measure up and down passing tests. In line with Destriana's research, research conducted by Carvalho et al (2021), andHidayat (2019a) shows the results that to measure upper passing in ball games, test, and measurement tools are needed. Kurniawan et al (2021), andXu andLiu (2021) have also analyzed the passing technique in volleyball in the high category.…”

Section: Student Results Of Large Group Trialsmentioning

confidence: 53%

Development of test forms of down passing techniques in sensor-based volleyball games

et al. 2022

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The purpose of this study is to develop a form of passing down technique skill test in a sensor-based volleyball game. This research is a research and development (R&D) research. The research steps are: Potential and Problems, Data Collection, Product Design, Design Validation, Design Revision, Product Trial, Product Revision, and User Trial. This development research is first validated by material experts and media experts. The product trial is carried out on volleyball extracurricular students at SMA Nusantara in the open field of PBVSI Deli Serdang, as many as 14 students. Small group test of 7 students, and large group test of 14 students. Type of data collection is with the instrument in the form of a questionnaire. The results obtained from the validation results (a) material experts amounted to 98.3% categorized as very feasible; (b) 98.3% of media experts are categorized as very eligible; (c) small group trial of 86.9% of students in the very appropriate category, (d) large group trial of 91% of students in the very eligible category. The product produced in this development is a sensor and wall target application which is equipped with a user manual. This sensor tool has been declared “very feasible” to be used as a medium or means to help automatically calculate points in the volleyball underpass test. This study also finds some limitations that can be taken into consideration for further research, namely the number of samples studied is still relatively small and supporting facilities are inadequate so that there is a slight delay in taking the exam. Based on the limitations contained in this study, it is hoped that in the future partner researchers can use this research as a reference material for contributions in their research, so that perfection in technological developments in the world of volleyball is achieved.

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“…Biomechanics can influence sports performance, with a focus on aspects such as speed, strength, movement efficiency (Carvalho et al, 2021;González-frutos et al, 2022;Maestroni et al, 2023;Wild et al, 2022), long jump (Huang et al, 2023) as well as muscle strength, kinematics, and movement dynamics (Melo et al, 2020;Paterno et al, 2022). Meanwhile, biomechanical principles such as kinematic and kinetic asymmetries, as well as step timing, can enhance performance and reduce injury risk (Dos 'Santos et al, 2021;Jamaludin et al, 2020;Quittmann et al, 2020). The application of biomechanical analysis and inverse dynamics in specific sports contexts can evaluate ground reaction forces and kinematics during physical activities (Briley et al, 2020;Mancha-Triguero et al, 2020;Pimentel et al, 2020;Maidawilis et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Exploration of branches of physics for handling several cases in sports applications: A systematic literature review

Chaeroni,

Nurhasan,

Ardha

et al. 2024

Retos

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The principles of physics have become a primary focus in the development of sensory technology and biomechanical analysis in the context of modern sports. This study aims to explore the contributions of physics in enhancing athlete performance and reducing injury risks. A systematic literature review (SLR) was conducted to identify relevant empirical studies highlighting the role of physics in sports. Data were analyzed from Scopus database sources with criteria as specified in the SLR study and with the PRISMA method. Search strategies using predefined keywords referring to the current topic were employed. The results of the literature review indicate that the application of sensory technology and biomechanical analysis has provided profound insights into human body movements in sports. Technologies such as motion capture and 3D analysis have enabled the identification of specific aspects of athlete techniques that require improvement. Furthermore, real-time feedback from sensor technology has assisted in direct adjustments during training, potentially enhancing the quality of athlete techniques and reducing injury risks. Integrating the principles of physics in sports not only enhances athlete performance but also constitutes an integral part of injury prevention efforts and effective care. Thus, understanding and applying the principles of physics in the context of sports can provide significant benefits to athletes, coaches, and sports health professionals in efforts to enhance athlete well-being and performance. Keywords. Sports, biomechanics, kinematics, physics

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Reliability of 2D kinematics during landing of volleyball athletes after exhaustion

Cited by 3 publications

References 23 publications

A Beta Version of an Application Based on Computer Vision for the Assessment of Knee Valgus Angle: A Validity and Reliability Study

A Beta Version of an Application Based on Computer Vision for the Assessment of Knee Valgus Angle: A Validity and Reliability Study

Development of test forms of down passing techniques in sensor-based volleyball games

Exploration of branches of physics for handling several cases in sports applications: A systematic literature review

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