Strengthen Core with Alternating Single Leg Crunches

Alternating Single Leg Crunches

Rep Range

Time Based

Hints

Lie on your back with arms straight out to the sides. Raise one knee towards your chest while crunching up, bringing hands around to meet the sides of that knee. Lower and repeat on the other side.

Common Mistakes

Relying on neck or arm strength instead of engaging the core. Not maintaining a controlled movement.

Breathing

Exhale during the crunch; inhale as you lower and switch sides.

Muscle Focus

Primary Muscles

Abs

Secondary Muscles

Obliques, Hip Flexors