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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2409.03766 |
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| _version_ | 1866913812626538496 |
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| author | Kakavand, Reza Ahmadi, Reza Parsaei, Atousa Edwards, W. Brent Komeili, Amin |
| author_facet | Kakavand, Reza Ahmadi, Reza Parsaei, Atousa Edwards, W. Brent Komeili, Amin |
| contents | This study evaluates the agreement of marker-based and markerless (OpenCap) motion capture systems in assessing joint kinematics and kinetics during cycling. Markerless systems, such as OpenCap, offer the advantage of capturing natural movements without physical markers, making them more practical for real-world applications. However, the agreement of OpenCap with a marker-based system, particularly in cycling, remains underexplored. Ten participants cycled at varying speeds and resistances while motion data were recorded using both systems. Key metrics, including joint angles, moments, and joint reaction loads, were computed using OpenSim and compared using root mean squared error (RMSE) per trial across participants, Pearson correlation coefficients (r) per trial across participants and repeated measures Bland-Altman to control trials dependency within subject. Results revealed very strong agreement (r GT 0.9) for hip (flexion/extension), knee (flexion/extension), and ankle (dorsiflexion/plantarflexion) joint angles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_03766 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Comparison of Kinematics and Kinetics Between OpenCap and a Marker-Based Motion Capture System in Cycling Kakavand, Reza Ahmadi, Reza Parsaei, Atousa Edwards, W. Brent Komeili, Amin Computer Vision and Pattern Recognition This study evaluates the agreement of marker-based and markerless (OpenCap) motion capture systems in assessing joint kinematics and kinetics during cycling. Markerless systems, such as OpenCap, offer the advantage of capturing natural movements without physical markers, making them more practical for real-world applications. However, the agreement of OpenCap with a marker-based system, particularly in cycling, remains underexplored. Ten participants cycled at varying speeds and resistances while motion data were recorded using both systems. Key metrics, including joint angles, moments, and joint reaction loads, were computed using OpenSim and compared using root mean squared error (RMSE) per trial across participants, Pearson correlation coefficients (r) per trial across participants and repeated measures Bland-Altman to control trials dependency within subject. Results revealed very strong agreement (r GT 0.9) for hip (flexion/extension), knee (flexion/extension), and ankle (dorsiflexion/plantarflexion) joint angles. |
| title | Comparison of Kinematics and Kinetics Between OpenCap and a Marker-Based Motion Capture System in Cycling |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2409.03766 |