Purpose: To develop the serratus and obliques.

Execution: Lie on your left side with your legs on top of one another; place your right hand behind your head; simultaneously crunch up as high as you can and raise your feet a few inches off the floor; hold the peak contraction for a moment and exhale; lower slowly and under control, not allowing your body to rest at the bottom between reps; complete the set and repeat for the other side.

 

 

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