04 PLANK MOUNTAIN CLIMBER
Targets: Upper body, core, legs
Do: 20-30 secs
(a) Start in a tabletop position with your wrists underneath your shoulders, your knees below your hips. Use your abs to hover your knees a couple of inches above the ground.
(b) Extend one leg back, then bring the bent knee across towards the opposite elbow and back, and step back to make a full plank. Bring the other knee in and repeat the twist towards the opposite elbow, reversing back to plank. Walk both feet in so your knees are underneath your hips, and repeat.