HAMSTRING CURL

Preparation
Attach a resistance band to a door anchor. Place the door anchor on a door and adjust the height. Connect the other end of the band to a D-ring on an ankle strap. Do the same for a pair of resistance bands. Lie prone on floor and forearms flat next to the torso.

Execution
Raise ankles to gluteus by flexing knees. Lower ankles until knees are straight. Repeat.