Anchor a band at floor level and attach an ankle strap to the end of it. Facing the anchor point, attach the strap to one ankle, then step back to place tension on the band. Start in a standing position, with your working leg (the one with the band attached to it) extended in front of you so that your foot is a few inches off the floor. Contract the hamstrings of the working leg to bend your knee so that your foot lifts up and back behind you (a standard leg curl motion). Squeeze the contraction in the hamstrings at the top, then lower back down under control to full leg extension. Complete all reps with that leg, then switch legs and repeat.
