Sit on incline board. Place weight between ankles or use
no weight. Lie supine on incline board with torso elevated. Grasp
feet hooks or sides of board by head for support.
Raise legs by flexing hips while flexing knees until hips
are fully flexed. Continue to raise knees toward shoulders by
flexing waist, raising hips from board. Return until waist, hips
and knees are extended. Repeat.
Exercise can be performed without added weight until more
resistance is needed. Elevate incline to increase resistance.
When raising hips, keep knees fully flexed as not to throw weight
of lower legs over head.