The knuckle spine release is not to be confused with that time back in 9th grade when your brutish cousin hit you in the back. :-)... Fists are positioned on either side of the spine and however high up the back it's possible to go. Lie on your back with your hands in this position and use your body weight to sink into your fists. Let the muscles lining the spine soften against your knuckles. Stay for 10-30 seconds, breathing slowly. BENEFITS: Helps release shoulder and back tightness. COUNTERINDICATIONS: If you can't get your arms comfortably in this position, skip it.