<div>
(quadancer @ May 07 2008,7:09)</div><div id="QUOTEHEAD">QUOTE</div><div id="QUOTE">Bryan, out of the contingent of us who DO believe in SD and HST principles throughout, there is disparity amongst us as to the time period required to satisfactorily decondition. In my experience, 2 weeks worked better than 8-9 days; some say even that isn't long enough...but at some point along the timeline, the muscles will enter the atrophic stage -
I guess I'm wondering what information you might have on this, regarding fairly seasoned lifters in particular.</div>
That is the magic question...and I don't have a one-size-fits-all answer. Trying to give an exact number for SD is as problematic as giving someone an exact amount of weight they must lift. 1) It's relative, 2) the environment within the muscle tissue is always changing, and 3) We don't have an infallible way to gauge what is happening in the tissue at any given time.
Even this does not take into account the other variables that might be affecting one's gains. (e.g. nutrition, supplementation, use of effective loads/volume)
All we can do is consider some "rules of thumb".
1) You are never going to be able to completely decondition a muscle without losing too much size. So, don't even try. Under normal living conditions (not bed rest or illness), 2 weeks is enough to allow
some reversal of adaptive changes, yet not enough to cause true atrophy.
2) The older you are (both "training" age, and actual age) the longer you can decondition without losing too much size. Unfortunately, this is simply the reverse side of a coin that says old guys will not grow quickly either.
Howz that for a non-answer quad?!
-bryan