Fig 1.
(A) Illustration of the custom-made cycle ergometer with instrumented pedals, a seat with backrest and a motor-driven crank. The backrest was locked in place to allow a locomotor task with minimal demands for postural control (Seated, non-postural loaded pedaling), or was unlocked to slide to add postural component to the locomotor task (Non-seated, postural loaded pedaling). (B) Pedal forces in the pedal coordinates system.
Fig 2.
Inappropriate paretic extensor activity during postural loaded cycling.
Changes in Soleus (SOL) and Vastus Medialis (VM) EMG activity in non-impaired (top, black) and post-stroke (bottom, grey) individuals. * indicate between effort and § indicate between loading conditions. ++ indicate difference between loading conditions at high effort levels only. Statistical significance at p<0.05 level.
Fig 3.
Impaired H-reflex gain during postural loaded cycling post-stroke.
H-reflex gain expressed in H/EMG ratio in non-impaired (top, black) and post-stroke (bottom, grey) individuals. * indicate between effort and § indicate between loading conditions. Statistical significance at p<0.05 level.