BESTRONGER

Abs · Bodyweight

Knee crunches

Knee crunches
Muscle
Abs
Equipment
Bodyweight
Measured in
Reps

How to do it

Lie on your back with your arms at your sides. Bend your knees and lift them up. Pull your hands back towards your body. Lift your torso off the ground and reach your hands towards your feet.

Run it with a timer

Every session, counted out loud.