Time: 30 seconds
Targets: Chest, arms, shoulders, core
Place hands on first or second step with legs extended behind you on the ground so you’re in plank position. (The higher the step your hands are on, the easier the push-up will be.) Make sure your hands are shoulder-width apart. Bend elbows and slowly lower your chest down to the step. Exhale as you press your chest back up to starting position, keeping your core tight throughout. Repeat.