Secure a resistance band around an anchor point close to the floor. Attach an ankle strap at the other end to your right ankle. Then proceed to lie face down on an exercise mat, facing away from the anchor point, with your legs extended behind you. Ensure enough distance between the anchor point and yourself so there is sufficient tension on the band. This is your start position. Flex your right foot towards your shin and then proceed to lift your foot towards you by flexing at the knee and exhaling as you do so. Pause at the top, squeezing your hamstrings. With control, lower your legs back to the starting position, inhaling as you do so. Perform all reps and then repeat on the other leg.