dimanche 16 novembre 2014

Fast Twitch Muscle Fibre After 50

I've been noticing significant declines in speed and agility/reflexes over the last months. I've heard that the decline in fast twitch muscle at my age is very significant.



Does anyone understand the biochem of what's involved enough to break it down to a layman?



Also, a blood test taken last week indicated my Free and Total testosterone serum levels were quite low - 188 ng/dL - the reference Interval for 40yr + being 348 - 1197 ng/dL.



Would that have a significant bearing into things?



Cheers,




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