By Emma Whitford January 12, 2005

Straighten Up! Whether the goal is to sweat, sit still, or get kneaded like a loaf of bread, a better-spine session is around the corner.

Awaken at Revolution in Motion

Eight students, tops, lie on physio-balls and grip rubber bells filled with water. As the body shifts on the ball and arms move to keep up with the weight of the bells, the nervous system kicks into high gear–prepping the body to internalize correct technique. Meanwhile, a slant board encourages stable feet, hollowed abs, and a lifted torso–keys to standing up taller.