- Lie on your back, with your hands on the side of your head and your knees bent to about 90 degrees.
- Contract your abs and lift your upper body diagonally, so that the elbow and shoulder on one side of your body move towards the knee on your other side.
- Bend as far as possible and then return to the starting position.
The oblique crunch is a classic bodyweight exercise for strengthening your internal and external obliques. 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.