Want a killer butt and core? Forget separate core workouts. Adding this ingredient to your current moves will amplify results and sculpt your middle in one efficient session.

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Why the bosu ball? "By adding an unstable surface, a BOSU ball increases activation of the rectus abdominus and facilitates extra activity per exercise than a stable surface would," says Meaghan.

 

Words/workout: Meaghan Terzis
Photography: James Patrick 

 

1. Sit-up

3 sets / 12-15 reps

1. Begin by lying on the Bosu ball with your hips just off the edge of the ball. Place your hands behind your head to gently support your neck.

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2. Exhale and curl your upper body over the Bosu ball. Hold for a brief second at the top before slowly returning to the starting position.

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Words/workout: Meaghan Terzis
Photography: James Patrick