SPINAL RAP
The easiest way to get an instant fitness boost is with good posture, just like your first-grade teacher recommended. So sit up and listen:
BREATHE DEEPER Correct posture allows you to fill your lungs to full capacity and maximize your oxygen intake, which means more oxygen reaches your muscles, reducing fatigue. CONSERVE ENERGY "When you're properly aligned and vertical in your stance, your muscles don't have to work as hard to hold you up," says Bill Sands, head of sport biomechanics for the U.S. Olympic Training Center in Chula Vista, California. AVOID BACK INJURY "Most back injuries are associated with a rounded or arched back," says Stuart McGill, professor of spine biomechanics at the University of Waterloo, in Ontario, Canada. "That's because you're overloading your back muscles," says McGill. Good posture can eliminate that risk. GENERATE MORE POWER Most sports require the back muscles, hips, and legs to work together. "A rigid torso protects all your flexible limb joints: your hips, legs, knees, and shoulders," says McGill. The result is that all your effort goes into powering through an exercise instead of compensating for poor form.
THREE KEYS TO A PERFECT STANCE
1. The main signs of misalignment are hunched shoulders, one shoulder higher than the other, uneven pelvis, butt sticking out, and locked knees. "Standing in front of a mirror can be revealing," says Sands. Look for asymmetries in the way you hold yourself and focus on bringing them more in line.
2. Roll your shoulders back, slightly arch your spine, and hold your head up. "When your gaze is directed about 11 feet ahead," says Sands, "you're well balanced."
3. Regular exercise and paying attention to your posture while working out will take care of many postural problems. Sands says, "Most of what controls posture is plain, old-fashioned strength."