Dynamic biomechanical effect of lower body positive pressure treadmill training for hemiplegic gait rehabilitation after stroke: A case report

Figure 4 Symmetric index of mean muscle activity computed during stance phase and swing phase. The lower the value of the symmetric index, the lesser the difference between the affected side and the unaffected side. During both the stance phase and swing phase, the symmetry of muscle activities (including the tibialis anterior, gastrocnemius lateralis, and gastrocnemius medialis) were better posttreatment than pretreatment. The symmetry of gastrocnemius medialis activities were slightly worse at follow-up. A: Stance phase; B: Swing phase.