Fig. 2

Muscle contributions to braking and propulsion. A Paretic and nonparetic muscle contributions to AP COM acceleration integrated over stance for Subject 2. B Muscle contributions to AP COM acceleration over the paretic gait cycle, with contributions stacked on top of one another and shown relative to the normalized AP GRF (dotted line) for Subject 2. C Paretic and nonparetic muscle contributions to AP COM acceleration integrated over stance for Subject 15. D Muscle contributions to AP COM acceleration over the paretic gait cycle, with contributions stacked on top of one another and shown relative to the normalized AP GRF (dotted line) for Subject 15. E Muscle contributions to AP COM acceleration over the left gait cycle, with contributions stacked on top of one another and shown relative to the normalized AP GRF (dotted line) for a representative control subject