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By Serge Kreutz (2010)
One thing I know for sure: tongkat ali is a strong enhancer of athletic performance. I am beyond 50, and when I have taken my daily dosage of 1 gram of 1:50 tongkat ali extract, I do double the number of pull-ups, compared to when I am tongkat ali sober.
The strength gain is greatest after the second day of a tongkat ali cycle, and it lasts for about two additional days after I have ended a tongkat ali cycle.
That water-based tongkat ali extract changes body composition in men from fat to lean body mass has been confirmed in a human clinical trial.
This study was published in the Britisch Journal of Sports Medicine.
The scientific index for this study is:
Br J Sports Med.2003; 37: 464-470
The strength gain is greatest for the kind of exercise that requires muscle strength: pull-ups or running up stairs (an exercise form I personally prefer). There is less benefit from tongkat ali for exercise that is more on endurance, rather than strength, for example distance running over flat terrain.
I think it would be most interesting to do a scientific study on the athletic performance enhancing effect of tongkat ali. Initially, a test utilizing an animal model would be appropriate, e.g. a forced swim test for mice. In such a test, it could easily be determined and measured what effect tongkat ali has on athletic performance. (le*n)
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Copyright Serge Kreutz