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Don't wait: whatever your age, it pays to lift weights.(health wise)(weight lifting )
Weight lifting may be the closest thing ordinary people have to a fountain of youth. Between the ages of 20 and 50, healthy adults have, essentially, a fixed amount of muscle mass. At about 50, it starts to go. By age 80, sedentary adults may have only 60 percent of the muscular strength they had as young adults.
The results can be seen in nursing homes everywhere. "In our research, we have found elderly women who didn't have enough muscle mass to pick 5 pounds up off the floor," says William J. Kraemer, Ph.D., professor of kinesiology at the University of Connecticut. "What puts the majority of people in convalescent homes is their inability to use their hip flexor muscles to get out of a chair or off the toilet."
Nothing can completely stop age-related loss of muscle, but weight lifting comes close. "People who resistance-train in their 50s, 60s, or 70s may have more muscle mass than people the same age who don't," says Glenn A. Gaesser, Ph.D., professor of kinesiology at the University of Virginia. "You can have a 60- or 70-year-old as muscularly fit as a 30-year-old." Weight training can also slow the loss of bone mass.
Clearly, it's never too late to start lifting ...
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- Press release article from: Business Wire May 14, 2007 700+ words
...ability of the compound to increase muscle mass and strength in normal mice and in murine...negative regulators of muscle to increase muscle mass and strength as a potential treatment...demonstrate substantial increases in skeletal muscle mass and strength." ACE-031, a protein...
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...stamina and enhance the muscles' ability to extract oxygen from the blood. Resistance exercises, such as weight lifting, build muscle mass and strength. Resistance and weight-bearing exercises increase bone calcium, reducing the risk of osteoporosis...
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...demonstrated that ACE-031 increased muscle mass despite concurrent treatment with glucocorticoids...demonstrated that the drug directly enhances muscle mass and strength in preclinical models of...treatment of diseases involving the loss of muscle mass, strength and function. ActRIIB ...