A upper legs exercise targeting the hamstrings.

You will need a partner for this exercise. Lay face down with your legs straight. Your assistant will place their hand on your heel.
To begin, flex the knee to curl your leg up. Your partner should provide resistance, starting light and increasing the pressure as the movement is completed. Communicate with your partner to monitor appropriate resistance levels.
Pause at the top, returning the leg to the starting position as your partner provides resistance going the other direction.
Primary (target)
Secondary
Log your sets and the app does the rest — automatic PR detection, progression charts for every lift, and progressive overload that adjusts your next workout. Paired with AI nutrition coaching so your training and your plate pull in the same direction.
Planning your next heavy session? Estimate your max with the One Rep Max Calculator and build up to it with the Warm-up Calculator. More free tools →