| PhotoChick |
12-06-2008 11:38 PM |
Bone Loss - Another Reason to Avoid Extreme Diets
http://munews.missouri.edu/news-rele...eight-loss.php
Quote:
During weight loss through calorie-restricted diets, bones are being remodeled - breaking down old bone and forming new bone - at an accelerated rate. At the same time, bone density is decreasing, causing increased fragility. In a new study, a University of Missouri researcher and collaborators at the University of Kansas found that the potentially harmful effects of weight loss on bone persist during weight maintenance following moderate weight loss.
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The study goes on to say that people losing significant amounts of weight should incorporate high-impact, weight bearing exercise into their routines and double check their calcium intake.
Another collaborative study says:
Quote:
research out of Washington University School of Medicine in St. Louis highlights its “osteoprotective effect” in weight loss. Their study compared bone density (as measured by blood markers and dual-energy x-ray absorptiometry) in two groups of older adults, one of which lost weight through restricting calories and the other by exercise. Their results? Though the CR group lost some 2.2 % of bone density in fracture-prone areas like the lower spine, pelvis and femur, the exercise group showed no substantial change in bone density. Though both groups showed higher rates of bone turnover than the control group, the researchers indicated that the work of exercise, the “muscles pulling on bones” can “produce strains in the skeleton that stimulate new bone production.” The “exercise-induced mechanical strain,” they say is actually healthy and protective.
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http://www.marksdailyapple.com/calor...ion-bone-loss/
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