Instructions: Lie on your back on a gym mat or the carpet of your floor. Place your hands
underneath your buttocks for support. Keep them there throughout the entire exercise.
Keep your head relaxed on the floor throughout the entire exercise.
Extend your legs out straight in front of you with your feet 4-6 inches off the floor.
This is your starting position. Next, bring one knee up towards your chest then return it back to
the starting position. Alternate over to the other leg and repeat.
Keep this motion going until you have completely the same number of reps on each side.
Note You can also this on the edge of a flat exercise
bench. Position your buttocks on the edge of the bench with your hands hanging on the edge
of the bench. Perform the exercise in the same manner.
Don't raise your head up while performing this exercise. Keep it relaxed on the floor
to prevent any neck injuries.