 Approximately 50 units was injected in the rectus femoris bilaterally, 75 units in the medial hamstrings bilaterally and 100 units in the gastrocnemius soleus muscles bilaterally. 
Approximately 50 units was injected in the rectus femoris bilaterally , 75 units in the medial hamstrings bilaterally and 100 units in the gastrocnemius soleus muscles bilaterally .