How to Do Crunches
- Lie on your back, with your hands in front of your chest and your knees bent to about 90 degrees.
- Lift your upper body by contracting your abs and bending forward.
- Bend as far forward as possible while still keeping your low back in contact with the floor, and then return to the starting position.
The crunch is a classic body weight exercise for strengthening your abs. The exercise can be varied by lying on a soft training ball (i.e. pilates/bosu ball), and you can increase the load by holding a weight against your chest.
Text and graphics from the StrengthLog app.