Stacked push-ups

Muscles worked

You need

How to do it

1. Get into a push-up position and place one foot on top of the other, so your whole lower body balances on a single set of toes.
2. Keeping your body in a straight line, lower your chest toward the floor and press back up.
3. With your base narrowed to three points, every rep doubles as an anti-wobble contest - your core has to grip hard just to keep your hips from swaying while your arms do the pressing.