February 8th, 2010
This move hits your core and obliques in one rhythmic movement
- Lie with a Bosu ball under your hips, your knees bent and your hands by your temples.
- Curl up into a crunch, twisting your torso to the right.
- At the same time, lift your right knee and touch it to your left elbow while straightening your left leg
- Go back to the start and repeat the action on the opposite side

February 8th, 2010
V1 – Vertical Speed 1
The crunch twist targets your upper abs and obliques, while the unstable surface gives your car an extra workout.
- Lie back back as far as you can with the ball under your lower back
- Curl your shoulders up and twist your torso to one side.
- Lower slowly to start and repeat to other side
