HIGH PLANK TO EXTENDED PLANK

MUSCLES WORKED: ABS, GLUTES, SHOULDERS, MID-BACK

You’re breathing hard, so now is the perfect time to attack your abs. Facing the stairs, get into the press-up position with your hands about 15cm from the first step, your core and glutes tight. Hold for two seconds. Keeping your hips as steady as possible, lift your right hand from the ground and place it on the step, then do the same with your left. Hold here for two seconds, then return to the start. Repeat until your time’s up.