How to do it
- Lie flat on your back with your legs extended and your arms by your sides.
- Place your hands under your glutes for support.
- Engage your abs and lift your legs off the ground, keeping them straight.
- While keeping your legs together, lower them to one side until they are a few inches above the ground.
- Pause for a moment, then lift your legs back to the starting position.
- Repeat the movement to the other side.
- Continue alternating sides for the desired number of repetitions.
