Research - Cortisol

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Research - Cortisol

Postby Canuck Singh » Sun Aug 31, 2008 11:39 pm

Cortisol is an important hormone for breaking down proteins to make fuel. Cortisol also helps initiate an immune response to infection. However, tough exercise programs increase the production of cortisol. Elevated cortisol levels in the blood impede the transport of nutrients into muscle. This prevents effective recovery from training. New research performed by Dr. Dean Jacks has shown that short duration, high intensity exercise is best for minimizing excessive cortisol production.

Dr. Jacks and his colleagues showed that exercise duration is a key factor in minimizing excessive cortisol production; the longer the duration, the greater the concentration of circulating cortisol levels after exercise. Intense exercise for one hour increased cortisol concentrations four times more than a 30 minute workout at the same intensity.
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