Deadlift exercise. From "The New Rules of Lifting".

Muscle group: Combined

Steps

SETUP: Grab a Swiss ball and lie on your back on the floor with your heels and lower legs on the ball, your legs straight, and your arms straight out to your sides.
LIFTING: Using your gluteals and hamstrings, push your hips up so your body forms a straight line from your ankles to your shoulders.
LOWERING: Bring your hips down but don’t allow them to touch the floor again until you’ve done all the repetitions. You want to keep some tension on your rear-body muscles.

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