This is performed by lying on your belly and raising yourself onto your toes and your elbows, make sure to engage your core and stay as straight as you can.
Side plank dips
Lie on your side and raise on to your elbow, engage your core, straighten your body inline, and dip your hip to the floor and raise back to starting position.
Lie on your back, raise your shoulders off the floor lift your knees to a 90 degree angle to your hips and in a cycle motion touch your elbow to your opposite knee.
Standing side crunches
Stand with your feet shoulder width apart, hold your weight in your hand on the side you are going to crunch, slide the weight down the side of your leg to as far as you can go without losing form and slide back up again. Make sure to engage your core throughout.
Lie on your side, raise onto your elbow, place your other hand on your hip, make sure your spine legs and head line up, hold this position, use your stomach muscles to stabilise.