Slider Hamstring Curls Double/Dub

Lie in your back with heels in the middle of your sliders. Lift rear end up half way. Slide both greet out until knees are straight and toes are pointed straight up. Keeping butt just off the ground. Pull both heels back to full knee flexion.

Start with 5 sets of 5 or 3 sets of 10 depending on strength level. May need to scale down by doing double out single back version. See alternate video.