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Penile stress/strain relationship

I’ve heard about discoloration from PE - but this is the first documented account of frostbite from PE!

regards,

Originally Posted by hobby
I don’t have answers, only another question. Any thoughts on a protocol like this, which is incremental and focuses on stress relaxation instead of creep? Is there any benefit to varying stress through a session? I thought it was intriguing, but I didn’t make a stretcher and try it.

I notice the links in that thread are dead now. Here is the new JAS research page.

Yes, its interesting to see medical research saying that fixed strain (and consequent relaxation of the stress) produces better tissue growth in the long term than constant stress. I tend to think of responses we can measure over hourly/daily periods as indicating the mechanical properties of the penis. I am only interested in them in so far as they can help induce biological growth. If the mechanical process of stress relaxation at constant strain in some way signals to the body that some tissue rearrangement is required then that’s the condition I want my cock in.

The classic way to get stress relaxation at constant strain is of course to increase the temperature.

Perhaps we should be putting our cocks through cycles of temperature accelerated, stress relaxation at constant extension?

By hanging without heat, then reducing the weight as you increase the temperature you could effectively simulate constant strain, stress relaxation.

A bit of a long shot but worth considering. I wonder if anybody hangs initially without heat and then starts heating as they drop the weight?


Feb 2004 BPEL 6.7" NBPEL ???? BPFSL ???? EG 5.65" Feb 2005 BPEL 7.1" NBPEL 5.8" BPFSL 6.9" EG 5.8" Feb 2006 BPEL 7.3" NBPEL 5.8" BPFSL 7.6" EG 5.85" Feb 2007 BPEL 7.3" NBPEL 5.8" BPFSL 7.5" EG 5.9"

Hey,

How about hanging with an icecube? The heat from the rice sock causes the ice to melt, reducing weight…

Actually, you could just reduce weight without heat in order to limit creep and keep it at constant stress. The trick would be to know how much the load should be reduced to keep a constant strain - I suppose that is where Piet’s stretcher would be good. Trouble is to measure the load.

The SPS approach makes sense to me. I wonder if heating to achieve stress relaxation would be turbocharged SPS? Heating while hanging and reducing the load at the same time would be turbo-hanging. I don’t think this is a long shot at all, it makes sense to me. Problem is the usual - getting enough input to be able to make a observation that is generally applicable.

I was considering making a stealth-PE device á la penisplus with elastic strap, but based on the posts above I suppose the regular SPS-stretcher is a better option. Not very stealthy. though.

regards,


Last edited by mgus : 03-03-2005 at .

Originally Posted by mbuc
Yes, its interesting to see medical research saying that fixed strain (and consequent relaxation of the stress) produces better tissue growth in the long term than constant stress.

Actually, I’m not sure we’re talking of growth here - unless the research concerns cases where tendons have been torn and cut to shorter lengths before reattaching, were are talking about regaining what once was.

That does not mean that the SPS isn’t the better choice anyway, but I haven’t read the research papers in Hobby’s links.

regards,

For the heavy hangers stress relaxation at almost constant strain is easily achieved.

The guys hanging 20lbs are so far up the stress strain curve that if they started at 20lb and removed 1lb every 2 minutes after half an hour they would be at 5lb (and reduced their stress by 75%) but their new strain (elongation) would still be probably 95% of their original strain.

I confused the issue with heat because I was thinking about myself rather wimpily only hanging up to 6lb


Feb 2004 BPEL 6.7" NBPEL ???? BPFSL ???? EG 5.65" Feb 2005 BPEL 7.1" NBPEL 5.8" BPFSL 6.9" EG 5.8" Feb 2006 BPEL 7.3" NBPEL 5.8" BPFSL 7.6" EG 5.85" Feb 2007 BPEL 7.3" NBPEL 5.8" BPFSL 7.5" EG 5.9"

Well, we don’t really know that yet, do we? One or two of the heavy hangers need to repeat your experiments in order to determine what that stress / strain curve looks like further on - does it go horizontal, and if so, when?

regards,

Originally Posted by mgus
Well, we don’t really know that yet, do we? One or two of the heavy hangers need to repeat your experiments in order to determine what that stress / strain curve looks like further on - does it go horizontal, and if so, when?

regards,

True. Technically, that was very presumptious and unscientific of me. I still think its very likely though!:)


Feb 2004 BPEL 6.7" NBPEL ???? BPFSL ???? EG 5.65" Feb 2005 BPEL 7.1" NBPEL 5.8" BPFSL 6.9" EG 5.8" Feb 2006 BPEL 7.3" NBPEL 5.8" BPFSL 7.6" EG 5.85" Feb 2007 BPEL 7.3" NBPEL 5.8" BPFSL 7.5" EG 5.9"

A Jes without springs to allow a preset stress level to be dialled in, then an IR sock to increase the heat over time and reduce the strain, making the device easier to wear the longer it is on? Then repeat a couple of times per week?

This is just an idea for mbuc or anyone else that would like to shoot me down. What if while holding a constant stretch, via weight, a kegel was done. This would turn the once passive stretch into a non-passive stretch. The weight stays constant, but varying the intensity from the opposite end of the shaft would contradict the gravitational pull the weight is exerting; thus putting more of a strain on the penis.

In theory, this would make lighter weights have much more effectiveness in its tensile increasing abilities. The stretch that would normally be felt from larger weight could be attained by a lower weight. If this is possible, larger gains could be attained. If larger gains can be attained at lower weights, as weights increase, the maximum potential could theoretically be higher than once thought. If an individual had slowly worked up from say five pounds, using kegels along with the stretch, to say twenty pounds, my theory has it that this person would experience more gains than someone who had been hanging at a higher weight all along. What the difference in weight or results that would be is what I don’t know…

In relation to bib’s LOT theory, what if that theory was to be used in conjunction with the one that is proposed above? Meaning, find your LOT and exploit it. If you have a low level of LOT (straight down and loss of tug back), then hang at upper levels kegeling. (Vice versa for high level LOT’s). By doing this, the tug back would in theory ultimately be strained, resulting in breakdown, changing the LOT. In theory, when the LOT changes, growth traditionally should be observed.

In regards to your heat ideas: If someone was to try this out (which may be myself), maybe heating up the area between the scrotum and the anus would be a smart move. The last thing I think anyone would want is a strained PC or to have a horrible cramp with weights dangling from their penis.

Everyone’s research is greatly appreciated and I hope maybe some of my ideas may spark one of the genius’ in the forum to come up with that magical nine inch dick formula :) .

If I understand you right, you are talking of kegeling while hanging? That would be lifting the weight with your dick by kegeling = no extra weight, just moving it relative to the center of the earth. Actually, by lifting it you raise it to a distance further from the center of the earth, which lessens the gravitational pull = less weight, less strain.

BUT if you mean a) static stretcher or b) spring loaded stretcher you would

a) pull back your dick while having it fixed in one end - increase of strain
b) pull back your dick against a spring which increases it’s resistance - increase of strain

If you apply the “pulling back increases load at lesser weight” theory to that, you would simply have a greater load at (by increasing via tugback) at a lesser nominal load. I cannot see that that would be any different than increasing the nominal load UNLESS the flexing and relaxing increases the stretch, which I think there is reason to believe (JAI-stretch, physical therapists hold-flex-relax method etc).

ON THE OTHER HAND if you read shivers link above and check out the SPS theory, it seems it would make sense to use static stretchers and not vary the strain.

I am currently experimenting with manual BTC a la “Lazy General”-style since I don’t have a static stretcher, and the results are encouraging.


regards, mgus

Taped onto the dashboard of a car at a junkyard, I once found the following: "Good judgement comes from experience. Experience comes from bad judgement." The car was crashed.

Primary goal: To have an EQ above average (i.e. streetsmart, compassionate about life and happy) Secondary goal: to make an anagram of my signature denoting how I feel about my gains

Well, I had a complete response but my computer froze and I lost everything, so I’ll be very brief.

I understand that moving something from the center of the earth does, even if minutely, change the downward force of that object to the ground. If we were talking about solid objects that were not living, I would say this case is closed. However, when dealing with living tissue I don’t see that answer being so clear, cut, and dry.

I believe that kegeling softens the base up, gets the suspendatory ligament more involved (could be unique to me), and puts strain on the penis for having to work against the force as the fibers contract to pull closer to the body. This isn’t about the effect of gravity on weight from such and such a distance from the earth. This is about the penis’ ability to take that weight and not only support it, but move it.

It’s all very confusing because there are varying theories. In my theory, getting the fibers involved in movement creates larger strain. Larger strain calls for more recovery which COULD mean more growth. Not only may it be possible for more growth, but it could create a better ciculatory system, higher angle of erection, and a stronger kegel/orgasm response.

Thoughts?

Phoenix

What I meant is simply that merely lifting does not increase the weight of the object - if the object is not fixed, there is no increased force involved. There will be minute amounts of momentum etc in action (mbuc, where are you? Sort this out, will you!) and that should account for the feeling of extra load when you lift it.

But if I understand you right, you mean weightlifting via kegels? That’d probably be good for the PC muscle, but I don’t see how a stronger PC will get you a longer unit? I mean, you are already hanging = stress on the unit = elongation in progress. The lifting doesn’t increase that workload. However, it should be a more time-effective routine.

Imoprovements in circulatory system and kegel/orgasm I understand, but how could it affect angle of erection?


regards, mgus

Taped onto the dashboard of a car at a junkyard, I once found the following: "Good judgement comes from experience. Experience comes from bad judgement." The car was crashed.

Primary goal: To have an EQ above average (i.e. streetsmart, compassionate about life and happy) Secondary goal: to make an anagram of my signature denoting how I feel about my gains

Maybe I have been vague… and I will take responsibility for this. What I think I have been trying to say all along is that by doing kegels the penis is “fatigued” quicker from having to use the precious fibers to lift an unusual load (certainly more than nature had ever intended). This in effect lets the weight to tire the penis quicker and more sufficiently which means more breakdown, and ultimately (hoping) more growth.

The penis is live tissue, and will distribute the load unevenly as other areas tire. I think kegeling gets more of the penis involved, including the inner penis (depending on hanging angle) which has been known to be where the majority of easy gains come from. And as you said mbuc, the momentum going back and forth also has to be a factor, although probably minimally important.

To further illustrate my point of the difference between just holding the load and moving the load, compare it to lifting .(Please do not persecute me for using such a bad illustration. I know that the penis is not a muscle.) Consider holding 10 lbs in each hand with your arms out like bird wings, parallel to the ground, working the deltoid shoulder muscle. It’s hard to do, and fatigue sets in much quicker than most would think. However, if you were to lower your arms down to your sides and then lift the weight up to its previous position parallel to the floor, the weight would obviously not change, but would have a greater effect on the muscle tissue itself. Not only that, but the bones, supporting muscles such as the trapezius, triceps, and all the connecting ligaments are taxed. By moving that weight, everything supporting that weight breaks down more at the cellular level than by holding the weight at a constant level.

I liken this thought to the penis. By moving the penis from a kegel, the cells in the penis are strained by the movement and support needed to control the weight. Of course the PC muscle is greatly taxed, which is wonderful (in moderation), but also the supporting structure (the penis, with the weight attached) is also strained to a greater extent.

Also, I was thinking depending on which LOT you had, if you were to exploit it as I had said in the early post, this would change the erection angle. It has been said on these forums that using the LOT to determine the workout gets the angle to change over time. By kegeling, I would think it would only enhance the angle changing effects. I think the way the ligs are stretched in combination with kegel strength ultimately determines the angle of erection. So by kegeling whilst hanging weights, it’s a two in one knockout punch.

Just one big theory with nothing to back it up… yet.

Phoenix

I must jump in here and point out (constructively I hope):

1) Typically you plot the stress-strain curve with the stress on the y-axis and the strain on the x-axis. This matters because yielding is when there is large elongation with little increase in tensile force. So in fact your data is fairly odd from a classic materials standpoint - which is not surprising since we’re talking about biological tissue. I have attached a corrected “stress”-strain plot with mgus’ data.

2) To get a true stress-strain plot you would need to measure how the cross sectional area of your measurement section changes as weight is added (since stress is force/area).

All in all though, it is fascinating since the penis does seem to transition at around ~1000 g which (at least for me) tends to be roughly the “weight” at which it starts to feel like I’m really stretching. I plan to perform this experiment myself and if anything interesting (ie: different) occurs I’ll post the data. Unfortunately I am an All Day Stretch person too, so I can’t help answer the high tension question.

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