SB Alternate Leg Kick

Lie on a suitable Swiss Ball on your stomach, resting either your forearms or hands on the floor, with your back straight throughout.

MIDDLE

Simulate a front crawl swimming action with your legs, keeping them straight with your feet pointing downwards throughout the movement. Raise one leg whilst you lower the other, maintaining a straight leg position.

The action needs to be smooth and slow, one leg lift and lower every 1 - 2 seconds, with the range of movement being kept to 6 - 8 inches between your feet, to avoid excess momentum.