Kinematic and EMG Responses to Pelvis and Leg Assistance Force during Treadmill Walking in Children with Cerebral Palsy

Figure 4

EMG activity patterns from 8 muscles of the right leg during treadmill walking with 3 different loading conditions, that is, pelvis assistance only, leg assistance only, and combined pelvis and leg assistance, in comparison with baseline condition in children with CP are shown. EMG patterns were averaged over the last 10 steps with load for each subject and were further averaged across 10 subjects for all 8 muscles except for MG (). EMG data of MG from one subject were excluded from average because the data was considered as an outlier. In all graphs, thick lines with surrounding thin lines represent the mean and standard deviation of EMG data. EMG data were normalized to the peak values of each muscle with subjects walking on a treadmill with maximum walking speed of each subject. All EMG signals were normalized in time to 100% of the gait cycle. Dashed vertical line indicates the onset of the swing phase of gait.