02 PRESS-UP
20 REPS IN 20 SECS 80-SEC REST
It’s a basic move, yes, but firing out reps at pace upgrades the body-weight staple by activating the oft-neglected fast-twitch muscles in your back, arms and chest. Set up with your hands at shoulder width (A) and bend your elbows to lower (B). When your chest touches the floor, push up. Shoot for 20 reps to get your heart rate up.