How to do it
Keep your knees aligned over your ankles throughout the set.
- 1
Lie on your back with your knees bent and feet flat on the floor.
- 2
Extend your arms down the sides of your body.
- 3
Crunch your torso up slightly to engage your abs.
- 4
Reach your right hand down to touch your right heel, then return to the center.
- 5
Reach your left hand down to touch your left heel, then return to the center.
- 6
Continue alternating sides for the desired number of repetitions.
Expert tip
Focus on using your obliques to reach your heels rather than just moving your arms.
Common mistakes
- ✕Lifting the heels off the floor mid-reach
- ✕Slouching the head forward toward the chest
- ✕Rising too high into a full crunch