Swiss Ball Side Crunch
The side crunch exercise works the oblique abdominal muscles, which help twist and side-bend the trunk.
Teaching points
- Kneel on your left knee, with the right foot on the floor ito the side with the knee straight.
- Lean the left hip against the ball ans start with your upper body curled around the ball.
- To perform the exercise, lift your left side off the ball, bending at the waist, towards your right side.
Variations and progressions
- To make the exercise harder, tuck the toes of your left foot under and lift the left knee just off the floor.
Muscles worked
- Internal Obliques.
- External Obliques.
- Quadratus.
- Lumborum.
Alternative exercises
- Medicine ball twist.
- Twisting crunch.
- Sitting twist with a resistance band.
- Standing twist with a resistance band.
Related injuries
- Abdominal strain.
- Lower back pain.
