Reps: 10 kicks on each leg (total of 20 kicks)
Sets: 2
- Lie on your back with your legs extended straight out in front of you and your arms down by your sides with your palms flat on the floor.
- Lift both heels 6 inches off the floor.
- Keeping your abs engaged, lift your right leg straight up until your body forms a 90-degree angle with that leg.
- Lower your leg to 6 inches above the floor and hold it there. Then, lift your left leg straight up to the same 90-degree angle.
- Never let the extended leg touch the floor while you kick with the other one. This keeps tension in your abs at all times.