Active Isolated Stretching – Soleus (lower calf muscle) In General by Adam FriedmanJanuary 21, 2011 TweetShareSharePin0 SharesKinesiologist, Personal Trainer, and Nutritionist Adam Friedman, CSCS, CN, CMT, and Founder of Advanced Athletics show you how to perform an active isolated stretch for the soleus, in the lower calf.TweetShareSharePin0 Shares