Side Jackknife


Side Jackknife Images


Side Jackknife Instructions

Side Jackknife muscle diagram

Works your obliques. Lying on your right side and keeping your left leg over your right one, place your right hand in a comfortable spot and clasp your left hand behind your head.

Bring your torso and left leg toward each other as you pull with your obliques. Squeeze for a moment and return to the starting position. You can use ankle weights to make it tougher!