Reverse V Plank

Rest your feet centrally on a Bosu and your forearms on the floor, aiming to keep a straight line through your legs - hips and spine, keeping your head inline with your spine throughout the movement.

Whilst in the horizontal position, you need to keep your abdominal muscles fully engaged so that you avoid dropping to the floor.

Exhale and smoothly extend your butt upwards, making an upside down V-shape, holding in this position for a few seconds, prior to inhaling as you return to repeat.