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Lead Stories: Wednesday, December 3, 2008

Exercise May Speed
Healing Time

Posted December 29th, 2007 at 4:21 PM by Hariz Siddiqui

Section: Health & Fitness, Injury & Rehab, Exercise

Animal studies suggest that exercise may be even more important for older people than for younger ones. A report from the University of Illinois at Urbana-Champaign shows that exercise significantly decreased wound size and increased healing rate in older mice. However, exercise had little effect on the rate of wound healing in young mice. (American Journal of Physiology - Regulatory, Integrative and Comparative Physiology, November 14, 2007).

Mice ran on a treadmill at moderate intensity for 30 minutes a day for eight days. They then were given four full-thickness skin wounds and the rate of wound healing was checked daily for 10 days. Compared to age-matched non-exercising mice, the older exercisers healed faster.
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Exercise makes cells more efficient; increases overall health & life expectancy

Posted March 23rd, 2007 at 9:15 AM by Jeanie Rebb

Section: Health & Fitness, Exercise

Why does risk for heart attacks, strokes or diabetes increase with age? A team from Yale University showed that as you age, you lose your ability to make AMP-activated protein kinase (AMPK) (Cell Metabolism, February 2007). This enzyme functions to increase mitochondria in muscles.

Anything that reduces the number or efficiency of mitochondria interferes with your body’s ability to burn fat and sugar for energy. As a result, blood sugar, fat and cholesterol levels rise.
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