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Training: Green Tea Extract Boosts Exercise Endurance 8-24%
Green Tea Extract or simply drinking green tea is reported to have many beneficial effects on the human body. Some of the possible benefits of drinking green tea or taking green tea extract:
- lowering your cholesterol - boosting your immune system - prevent cavities and tooth decay - anti-stress - cortisol-controlling effects - cancer - rheumatoid arthritis - cariovascular disease - infection - increased fat loss when dieting .. and more
Now these have not all been scientifically proven, and much more research needs to be done. But one of the new and very interesting effects of green tea is the effect on endurance.
A new study investigated the effect of green tea extract on swimming endurance in mice. Green tea contains a high level of polyphenolic compounds known as catechins. These catechins seem to have an effect on endurance performance! Now that is interesting…
After getting the green tea extract the mice performed 8 to 24% better when swimming to exhaustion. And that’s a lot considering that most other ways to increase endurance will not give you these results.
So how much green tea extract does have this effect and will taking it before a marathon or game help you? And how does it work?
The researchers estimated that drinking 4 cups of green tea would be the need amount needed to get the same effect. That sounds doable. But the researchers also noted that a single dose did not have the same effect, you need to drink it for a prolonged time. The mice in this experiment were fed the green tea extract for 10 weeks.
Now why does some green tea have this much effect? The catechins, and possibly some other substance in green tea, effect the muscle use of fuels (carbs and fat). The catechins seem to improve the muscle fat burning abilities and helping to reduce the lactate production, which seem to be essential in endurance performance.
Currently researchers are doing another study to verify the results on humans, we’ll keep you posted!
PMID: 15563575
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