Share: Title:Dr Duke Performs Sample Stretch Techniques for the Hamstring & Piriformis Duration: 0:57 Plays: 22K views Published: 6 years ago Download MP3 Download MP4 Simillar Videos ▶️ 1:23 Dr Duke Treating Low Back Pain 22K views • 7 years ago ▶️ 0:39 Dr Duke Teaches How To Train The Transverse Abdominals 22K views • 6 years ago ▶️ 0:57 Dr Duke Demos Two Ways To Stretch The Hip Flexors & It-band 22K views • 6 years ago ▶️ 0:44 Perfect Posture Exercise 22K views • 1 year ago