3/4 crunch

Abs

• Target muscles: abs, legs, back
• Equipment: bodyweight
• Level: intermediate

How to do it

1. Lie on your back, knees bent, feet flat on the floor.
2. Place your hands behind your head, elbows out to the sides.
3. Bracing your abs, smoothly curl your torso up about three-quarters of the way, until your chest nears your knees.
4. Hold for a second at the top without pulling your head up with your hands.
5. Slowly lower back down without dropping your torso, and repeat.

Swap it for

• Crunch v. 2
• Partial Crunch
• decline sit-up
• Full Sit-Up with Arms Overhead

Harder

• Band Jackknife
• Weighted Decline Bench Sit-Up
• decline sit-up
• Full Sit-Up with Arms Overhead