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Girth theory: Pumping vs. clamping

Big Girtha always said that it was ok to clamp, and then let yourself go flaccid while clamped. I never believed it could work that way. He used to site the fact that after he was flaccid in the clamp, his girth would still be expanded beyond his erect girth, and he would measure to verify it.

Now that I think about it, maybe he was on to something. Allowing the erection to subside relaxes the tunica in the longitudinal direction, and maybe allows more expansion in the circumferential direction. It never made sense to me because it doesn’t feel like anything is being stretched, but maybe the expansion itself stimulates some growth or remodeling toward the larger girth.


Horny Bastard

Originally Posted by mgus
I’ve believed for a long time that one will get better girth gains if one does not load the tunica lengthwise at the same time (mgus - Pressure in the penis) - thought experiment:

Take a dishrag (material that is flexible in all directions) and hold it out in front of you - hands on left and right side, and pull outwards. Note elongation. Now have a friend grab the top and bottom at the same time, and pull (both of you) - the rag will not elongate as far now that some of the sideways slack is taken into use when pulled on up-down.

I don’t own a pump, but I’d venture that for max girth gains, an overly short tube - fat and short - would be the way to go.

The analgy is not 100 % since the tunica consists of two layers of collagen with perpendicular fiber orientation (longitudinal and circumferential). Nevertheless, I think that the analogy holds to a certain degree (when it comes to maximum elongation in both sides total volume capacity becomes a restricting factor.


Later - ttt

Originally Posted by mravg
It might be appropriate to discuss some equations at this point.
When you put pressure inside a cylinder, it creates tension in the wall, in both the longitudinal direction and the circumferential direction.
The wall tension is twice as high in the circumferential direction (also called the hoop stress in the reference I found).
The equations are as follows:

Wow! Good job.


Later - ttt

Originally Posted by ThunderSS
I agree with mravg. Also, remember, vacuum is vacuum. Changing the size of the tube isn’t going to do shit. Because you have a shorter tube, it isn’t going to apply less “length vacuum”.

If you take a tight long tube you get more longitudinal extension, if you take a tube with a diameter well bejond the size of your dick (same length) you get more circumferential but less longitudinal expansion.

Logic dictates that, and my dick follows exactly that logic.


Later - ttt

Originally Posted by sparkyx
It’s really counter-intuitive.

Unfortunately this is my impression all the long of this thread. But I must say that I abandoned extreme forms of pe completely and - in general - have reduced the amount of stress.

The reason is that intuition only can ‘see’ the immediate effects (stress in your dick) not the repair mechanisms (strengthening the tunica and the ligs, which are likely to pe counterproductive for further PE-efforts.


Later - ttt

Originally Posted by ticktickticker
If you take a tight long tube you get more longitudinal extension, if you take a tube with a diameter well bejond the size of your dick (same length) you get more circumferential but less longitudinal expansion.

Logic dictates that, and my dick follows exactly that logic.

I think your dick needs to go back to logic school. ;) A tight tube only gives you more longitudinal extension by removing the vacuum from the sides, and I almost doubt that it actually does that, if the vacuum used is the same in both instances.


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Originally Posted by ThunderSS
I think your dick needs to go back to logic school. ;) A tight tube only gives you more longitudinal extension by removing the vacuum from the sides, and I almost doubt that it actually does that, if the vacuum used is the same in both instances.

If in doubt give it a try.

My impression is that there is a maximal volume. You can get there a little more on the length side or a little more on the girth side.

In the tight tube you will get about 1/2 ” more length than in the wider tube.

PS: my dick doesn’t like logic school. Pussy playground is acceptable. I must apologize for that.


Later - ttt

What you guys are talking about lately on this subject is almost exactly how at least some of the posters are describing in the flaccid girth exercise thread.

That is, forcing expansion while holding the length expansion in check.

I wouldn’t have brought it up, except for the fact that I have found these to really pack a punch. Other posters have written that they get their asses kicked from them as well. Just 5 of them at 30 seconds each will send me spiraling. Others have reported partial dysfunction for a few days, (I think). The guys reporting this look like fairly seasoned PE-ers.

So I am saying that based on my very, very limited experience that you may be onto something with shortened pumping. I am also saying you may want to try doing a few of these manual exercises. On the surface they seem to be wimpy, but in practice they seem to be rather extreme.

I do them as follows:

20-50% erection.

FIRST, ( to me it is important which grip to take first), take a grip just below the head. I apply pressure only on the sides, but that is my effort to keep it low intensity.

Second, take a grip as low as you can on the shaft, I press a finger and thumb into the scrotum to pinch off the caverns like I am taking a pulse.

Then bring the two hands together slowly, compressing the penis like a spring as the erection subsides. For me it takes 20-50 seconds.

I think about slowly forcing the air out of an air mattress while I am doing it. Just enough to keep up an increase in pressure, not enough to force blood to the surface.

I am no longer doing them due to how much they affect me, but plan on adding them at some point.

I know I am a new guy, and probably just over enthusiastic, but these might be a way of doing some hands on testing of longitudinal pressure.


Sept. 4, '07: BPEL 6.875 inches, EG widest 5.25

Goal: Double digits

Just tried “Chrono compressions” :) …amazing! I did that and low erection level pumping today, and its the thickest I’ve been in a while.

Chrono’s compressions are right up the ally of what we’ve been discussing. It is a ideal way to “derange an unloaded tunica”, primarily in the transverse fibers.

I then go to low erection level pumping at 4 in hg, and I get a good longitudinal stretch, while the tunica is still not maximally loaded…or so it seems.

Chrono’s compressions are like taking a Chinese finger trap and compressing it. I expands it girth wise or the transverse fibers, while in an unloaded state.

It is a similar compression wave to jelquing, but seems far more effective. The jelque seems to produce a partially loaded area that is being expanded, while this seems to expand and unload at the same time…like forcing the fibers apart rather than pulling them together. That may be totally wrong, but thats my impression.

It might be interesting for you clampers, to try low pressure clamping, then compress your penis length wise. I seem to remember some guy saying his technique was pressing the tip of his erect penis against a wall. This would be far more effective (theoretically) because you compress an unloaded tunica.

Great work Chrono…f’in brilliant!!!


Last edited by sparkyx : 01-29-2008 at .

Originally Posted by chronostone

Then bring the two hands together slowly, compressing the penis like a spring as the erection subsides. For me it takes 20-50 seconds.

Do you use lube?

Originally Posted by SteadyGains
Do you use lube?


I have done these right after jelqing so it is still slippery.

When I start doing them exclusively, I will do them dry as it will work much better.


Sept. 4, '07: BPEL 6.875 inches, EG widest 5.25

Goal: Double digits

Guys…any comments on this application of stress?

I love a good intellectual discussion…but I love producing a big dick probably more! :) (notice I didn’t say I love a big dick more) ;)

I’m always looking to see how to APPLY information in a productive manner…I think this may be a good one, love to get your feedback.

It seems like a good exercise to me. I had some success with O bends and liked the idea, and this chrono crunch seems similar.


Horny Bastard

I agree with Mr. Happy and Naab. Pumping helped my erection problems and if done slowly and methodically you won’t get the fluid buildup.

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