Since abs are made in the kitchen [1], you've been committed to dialing in your diet, and you can already see your belly fat diminishing. To reveal lean, toned, and defined ab muscles, this side plank variation is a must-do move. As a bonus, it also works your lats, the back muscles underneath your bra [2].

• Begin in a side elbow plank on your right side with straight legs and your feet stacked.
• Inhale and lower your pelvis to the floor, so your right hip hovers just off the floor.
• Exhale and press up through your right waist to lift your pelvis and return to side plank. Pull your right shoulder blade down your back to stabilize your shoulder.
• This completes one rep.

Add this side plank variation [3] to your ab routine, or try it in this 30-minute ab and butt circuit workout [4]. Want to make it even more challenging? Put your feet in a TRX [5] or hold a light dumbbell in your raised hand.