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1. SHOE HEEL REMOVAL AND VIBRAM TRAINING. AREA FIXED: LOWER BACK. Ugly, and ultimately painful, postural compensation is unavoidable when wearing shoes that elevate the heels. This simple observation somehow escaped me for 30 years, until CrossFit Chicago instructor Rudy Tapalla introduced me to Vibram Five Finger shoes, which look like gloves for your feet. Chronic use of high-heeled shoes usually results in some degree of kyphosis-lordosis and related pains in the lower back and mid-upper back. Kyphosis-lordosis, seen in the second illustration to the right, is posture characterized by “convex curvature of the thoracic spine and an inwardly curved lower back resulting from the pelvis being tilted forward”. This is an academic way of saying hunchbacked and sway-backed at the same time. This is how both men and women with less than 10% body fat can end up looking potbellied. It’s the overarching of the low back, not excessive body fat, that causes this unfortunate optical illusion. The fix is simple: most of the time, wear flats or shoes with little difference in sole thickness from toe to heel. Shifting to wearing Vibram Five Fingers® and Terra Plana Barefoot Vivo shoes completely erased low-back pain I’d suffered from for more than 10 years.
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Timothy Ferriss (The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman)