Interesting 'Science of Flexibility'
I’ve been searching for something exactly like this for a LONG time. Finally I chanced upon it when researching ligament creep.
I am just reading through it now but I wanted to post it up here as I know quite a few people are interested in the science of PE. (I had to post it in the Newbie forum because I haven’t made enough posts yet.)
A few words are cached due to the search I was running at the time but just ignore them.
Some interesting quotes:
Referring to stretching collagen:
'Such an extension is believed to occur initially through a straightening of the fibers followed by a gradual slip of one fiber relative to the next. This movement results in an increase in crystallinity or orientation that strengthens the intermolecular bond and increases resistance to further elongation.. Thus, simply stated, collagenous fibers allow elongation until the slack of their wavy bundles is taken up.'
In my opinion this is a good explanation on why newbie gains come quickly then dramatically screech to a halt, and thereafter any gains become much harder.
Referring to stretching elastin:
'Elastic fibers yield easily to stretching but return to virtually their former length when released. Only when elastic fibers are stretched to about 150% of their original length do they reach their breaking point.'
Expansion of vascular tissue is also discussed which is of relevance to the enlargement of the corpus cavernosa. Pg 65
On pg 67 it discusses nerves which is also of relevance due to the dorsal nerve running along the top of the penis. (I think that is the right name?)
'Elastic, or recoverable, elongation (I.e. Something we don't want at Thunders :P) Is optimized by high-force, short-duration stretching at normal or colder-than-normal temperatures. Plastic or permanent lengthening is more likely to be produced by low-force, long-duration stretching at elevated temperatures, followed by tissue cooling before release of tension' (last point is intriguing)
If anyone reading this comes up with some more relevant quotes then please post!