by Boss Man » Thu Oct 01, 2009 6:55 pm
To give you an idea here. Women have Testosterone levels, on average between 45-90 ng/dl, (Nanograms per Decilitre of Blood, a Nanogram being a billionth of a gram).
Even double that upper limit, might possibly start to induce little sprouts of facial hair and voice deepening.
Men have between 350-1,000, some around 1,200 ng/dl, as any less than 350 can increase Heart attack risk.
Yes Test production and GH production can be influenced by sleep Patterns and things like Zinc, Vit E and Monounsaturates as examples, some even claim by Fibre, though as a GH blunting not promoting effect.
Even stress, and associated Cortisol production, might have some part to play with other Hormones and especially in relation to muscle building, as Cortisol helps to negatively breakdown Proteins to my understanding, (aside from promoting Fat gains), such breakdown obviously would potentially cause Catabolism of some muscle, or reduce growth rates, where growth was still able to happen.
In general though for upper limits of Muscle, a Woman could get around 13.5-14" Arms max, as a natural probably, maybe 14.5" tops, Hormone levels dependant, but at higher natural levels, that would not necessarily allow for fat levels, much lower than 15%, if at all, without some kind of Prohormone or Steroid, to allow Fat burning coupled with muscle retention.
So having 13.5" Arms and a 6-pac, would be pretty much a no-no, without legal or illegal stimulants.
As already stated, other things like diet and caloric intake / ratios plays some part, as does training style, duration and frequency, and body type as also previously stated.