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Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
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30.01.2012 |
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Get fit, delay aging
If you want to live longer you have to exercise more; nearly all studies show this. But if don't want to stop there, you can choose to do forms of intensive physical exertion that boost your maximal oxygen uptake. Researchers at the Kronos Longevity Research Institute discovered that the fitter you are, the more protective antioxidants your body makes.
Study
When the researchers analysed samples of blood taken from the elderly subjects when at rest, they noticed that the concentration of 8-hydroxy-2'-deoxyguanosine [8-OHdG] was lower in the elderly that were fit. The higher the concentration of 8-OHdG, the more damage to your DNA [second figure below].
The concentration of 8-hydroxy guanosine [8-oxo-G] was also lower in the fit subjects in their sixties. That means that the RNA molecules in their cells incurred less damage. Both 8-oxo-G and 8-OHdG are produced through reactions with free radicals.
The researchers then did a test in which they constricted the blood flow to the lower arm for a moment, and then let it resume. This process leads to the release of large amounts of radicals.
Results
Aging is to a large extent the work of free radicals, and these are a by-product of cells' energy generation. However, the body also makes molecules that deactivate free radicals. The research done at the Kronos Institute suggests that the body makes more protective molecules - and therefore ages more slowly - the fitter it is.
Conclusion
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