[quote]Casey Butt wrote:
The strong correlation between the variables themselves indicates that the premise is not weak.
It is common for a person’s bone structure to continue to enlarge into their early-20s. Adults cannot significantly increase wrist size without gaining body fat - the predictions are for bodybuilders with a low level of body fat.[/quote]
Define significantly. It is true that once the epiphyseal plates have calcified that the bones won’t continue to grow in length. However, I’ve never seen any literature that suggests that they don’t still can’t continue to grow in girth.
So, provided that the bones of the wrist were continually exposed to progressively greater loads, then they would continue to grow in circumference in response to this.
Sure, it’s true that there is a limit to the amount that the bones will grow. But according to your formula an increase of an inch would mean a significant increase in muscular potential. And, I don’t think that an inch increase is out of the question for someone who is exposing their wrists to heavy loads.
Therefore, one could only really know what their maximal wrist circumference would be when they’d reached their maximal muscular development. Which makes the formula once again somewhat arbitrary, since one could never really be sure if one had reached their maximal wrist circumference/muscular bodyweight.
In regards to the whole “this article only applies to bodybuilders” thing. First, why? From what I’ve gathered, the article only applies to those who wish to have the same proportions as the golden era bodybuilders.
This however has nothing to do with drugs (since it is possible to reach those proportions with or without drugs), nor does it have to do with maximal muscular bodyweight.
You also can only use bodybuilders prior to the invention of steroids as examples, as you cannot know for certain that any bodybuilder since the invention of steroids is actually “natural”. Sure, you might know that they tested negative for steroids when they won their title (or possibly you might not).
But that doesn’t mean that they never did steroids, it only means that they didn’t have any steroids present in their system at competition time.
And since, as I’ve already pointed out, the Golden era guys were going for a specific look (aesthetic ideal), you likewise cannot use them as a gauge of maximal muscular bodyweight. Not to mention the possibility of them not being the genetic elite, supplemental/nutritional factors, training methodologies, recovery modalities, etc…
Good training,
Sentoguy