How to do it
Flex the ankle of the raised leg to point the toes upward through each rep.
- 1
Lie flat on your back with your legs extended and hands underneath your glutes for support.
- 2
Raise one leg off the floor to a 90-degree angle, keeping it straight.
- 3
Lower it back down slowly without touching the floor.
- 4
Repeat with the other leg, alternating each time.
Expert tip
Keep your lower back pressed into the floor to prevent strain and ensure your abs do the work.
Common mistakes
- ✕Bending the knee as the leg fatigues
- ✕Resting the lowered leg fully on the floor
- ✕Swinging the leg upward with momentum