How to do it
Keep your elbows wide and open as you draw the knees upward.
- 1
Lie on your back with your hands behind your head, knees bent, and soles of your feet together (knees out to the sides).
- 2
Engage your core and glutes to lift your feet off the ground, bringing your knees towards your elbows.
- 3
Pause at the top of the movement, then slowly lower your feet back to the starting position without letting them touch the ground.
- 4
Repeat for the desired number of repetitions.
Expert tip
Focus on contracting your glutes at the top of the movement and avoid using momentum to lift your legs and hips off the ground.
Common mistakes
- ✕Feet touching the ground between reps
- ✕Pulling the head forward with the hands
- ✕Losing the knees-out frog position mid-lift