Active Isolated Stretching – Straight Leg Hamstring In General by Adam FriedmanJanuary 21, 2011 TweetShareSharePin0 SharesKinesiologist, Personal Trainer, and Nutritionist Adam Friedman, CSCS, CN, CMT, and Founder of Advanced Athletics will show you how to perform an active isolated stretch for the hamstrings.TweetShareSharePin0 Shares