- See:
-
Stance
-
Muscle Activity During Gait
- Discussion:
- during last portion of
single limb stance & entirety of wt release, tibial external rotation
continues, ankle plantar flexion is seen, and sub-talar joint continues to invert;
- forefoot is now in a less pronated position;
- thru action of the windlass effect, intrinsic muscle activity, and posterior tibial activity,
foot increases its rigidity and acts as rigid lever to prepare for toe off;
- gastroc-soleus muscle activity has stopped;
- elasticity of musculotendinous complex acts against rigid lever of foot still in contact
with the ground;
- limb is being unloaded so that the elastic recoil allows the ankle plantarflexion;
- this transfers energy to the limb to assist knee flexion in preparation for the
swing phase of gait;
