| Authors | Mohammad T Karimi, Fatemeh Hemmati, Mohammad A Mardani, Keyvan Sharifmoradi, Seyed Iman Hosseini, Reza Fadayevatan, Amir Esrafilian |
|---|---|
| Journal | Physical and Engineering Sciences in Medicine |
| Paper Type | Full Paper |
| Published At | 01-03-2021 |
| Journal Grade | ISI |
| Journal Type | Typographic |
| Journal Country | Iran, Islamic Republic Of |
Abstract
Measurement of muscle forces related to aging can help to better identify the gait impairment mechanisms in the elderly. To this end, musculoskeletal modeling has been developed to estimate muscle forces. This study aimed to check the validity of OpenSim modeling (i.e., computed muscle control) approach in elderly subjects. Kinematic and kinetic data and Electromyography (EMG) signals for four different muscles were collected in nine healthy elderly males during walking. Dynamic simulation was done within OpenSim. Correlation analysis was performed to quantitatively compare the maximum estimated muscle forces with maximum measured muscle activities during the first double limb support, single limb support, and the second double limb support phases. The area-time plots of OpenSim and EMG data during gait cycle were obtained for qualitative assessment. In quantitative assessment, a low to