Figure 8
From: Locomotor adaptation to a powered ankle-foot orthosis depends on control method
Steady state muscle activation. Steady state EMG RMS values of the soleus, medial gastrocnemius, and lateral gastrocnemius are plotted for each controller and each day (mean ± standard error) [footswitch control = solid bars, proportional myoelectrical control = hashed bars]. Average data is used for each plot (n = 6), except for the proportional myoelectric control medial gastrocnemius (n = 5) and lateral gastrocnemius (n = 5). The RMS values are normalized by dividing by the RMS of the passive orthosis condition. Proportional myoelectric control resulted in less muscle activation for the soleus than footswitch control (GLM, p = 0.0144). (asterisk) indicates significant difference between studies. (triangle) indicates significant difference from baseline (GLM, p < 0.03).