Thunder's Place

The big penis and mens' sexual health source, increasing penis size around the world.

Girth theory: Pumping vs. clamping

Originally Posted by ticktickticker
I believe in magnetic resonance imaging.

I don’t believe in magnetism if it comes to PE.

Anyhow, belief is a religious term, in my eyes. Here, we are trying a more scientific approach. Bit more discipline, pudendum, PLEASE :) .


Oh ye of little faith.

In a very quick search on Science Citation Index, I found several studies that demonstrate increased blood flow with static magnetic fields. Here is a conclusion of a 2007 review article that reviewed the studies on magnetic field effects on skin capillary blood flow:

Quote
A review of the literature involving the effects of MFs [magnetic fields] on microcirculation and microvasculature [capillaries] indicates that nearly half of the cited experiments (10 of 27 studies) report either a vasodilatory effect [vessels get larger] due to MF exposure, increased blood flow, or increased blood pressure. Conversely, three of the 27 studies report a decrease in blood perfusion/pressure. Four studies report no effect. The remaining ten studies found that MF exposure could trigger either vasodilation or vasoconstriction [vessels get smaller] depending on the initial tone of the vessel.

McKay JC, et al. A Literature Review:The Effects of Magnetic Field Exposure on Blood Flow and Blood Vessels in the Microvasculature. Bioelectromagnetics 28 (2007) 81-98.


Don’t be so quick to trash a very popular urban myth.

Are you listening Thunder?

Originally Posted by ThunderSS
Fuck that shit. I used to live under high voltage power lines and I’m OK,OK,OK,OK,…….OK.

It was the leaded paint chips wasn’t it??

Hehehehe


06/21/07 NBP = 7.75(tape) FSL = 7.875 EG = 5.00 Volume= 15.42

09/13/07 NBP = 8.375 FSL = 8.75 EG = 5.38 Volume = 19.29 (+25%)

12/26/07 NBP = 8.625 FSL = 8.75 EG = 5.50 Volume = 20.82 (+35%)

Originally Posted by ticktickticker
Unfortunately, tunica thickness is not constant but decreases with increasing radius. Thus, like in our previous discussion compliance was, now tunica thickness is a dynamic variable.

Considering this in the Laplace equation is quite interesting:

As the pressure increases, the tunica thickness decreases; the net effect on wall stress is that the pressure effect on wall stress is weakened.

This would again favour low pressure, low tension scenarios because at high pressure negative PI’s and injuries become exponentially (an estimate, from experience - blisters, frenulum tear, edema, discoloration, you name it) more likely while the net effect on wall tension is less than linear.


ttt - I think you need to rethink this.

If T = (P * r)/M, in our case: Tunica Tension = (Cavernosa pressure x Cavernosa Radius)/Tunica Thickness

Then if tunica thickness decreases as it gets stretched, then M is decreasing. If M decreases you are making the product of pressure and radius larger (the quotient is larger).

So as pressure and radius get larger and tunica thickness gets small, then wall tension gets larger, not smaller.

Originally Posted by ThunderSS

Fuck that shit. I used to live under high voltage power lines and I’m OK,OK,OK,OK,…….OK.

So did I. The EMFs distorted my thinking (and the rest of me as well). Thought maybe magnetic forces might distort my penis in the right direction. Notice I said in the right, not to the right. :)

Well, that is easy to cure pudendum. Go back to the power lines and live for an equal amount of time while standing on your head. That should reverse your polarity enough to get you back to normal. Then you can drop this magnet voodoo stuff.


Penis Enlargement Forum -- How To Jelq -- Free Penis Enlargement Videos

Make a Donation This place runs on donations, help out if you can. Thanks.

Originally Posted by pudendum
ttt - I think you need to rethink this.

If T = (P * r)/M, in our case: Tunica Tension = (Cavernosa pressure x Cavernosa Radius)/Tunica Thickness

Then if tunica thickness decreases as it gets stretched, then M is decreasing. If M decreases you are making the product of pressure and radius larger (the quotient is larger).

So as pressure and radius get larger and tunica thickness gets small, then wall tension gets larger, not smaller.

Yep.

Like a balloon.


06/21/07 NBP = 7.75(tape) FSL = 7.875 EG = 5.00 Volume= 15.42

09/13/07 NBP = 8.375 FSL = 8.75 EG = 5.38 Volume = 19.29 (+25%)

12/26/07 NBP = 8.625 FSL = 8.75 EG = 5.50 Volume = 20.82 (+35%)

Originally Posted by ThunderSS
Well, that is easy to cure pudendum. Go back to the power lines and live for an equal amount of time while standing on your head. That should reverse your polarity enough to get you back to normal. Then you can drop this magnet voodoo stuff.


Well I guess there’s no cure for me. I can’t stand on my head.

Though it’s not a bad idea, if I get my penis closer to the EMFs from the wires, my blood flow would increase and I’ll get an even bigger penis.

Just a thought. :)

For Mr. Happy’s benefit: Don’t try this at home guys. :)

Pressure is going down while radius become longer. The net effect should be null. Also, Laplace’s equation regards static situations.

Originally Posted by marinera

Pressure is going down while radius become longer. Maybe Laplace’s equation regards static contests.

PE applies dynamic pressure particularly as with jelqing (with the exception of pumping), so pressure and radius will be elevated as the tunica wall gets thinner (and not my much; hundredths of millimeters).

My house flooded when a pipe broke inside my wall, and I have been doing the plumbing myself, as well as the cleaning up. I am now about 3 pages behind, and I would like to know if I can receive college credit before I put in the effort to catch up!!


Horny Bastard

Originally Posted by ticktickticker

Considering your lack of interest in penis physiology I would like to compliment you about digging out a very interesting paper with high relevance to our topic.

Btw - I found it fascinating that voluntary contraction of the same muscles does not increase cavernous pressure. Penis physiology IS fascinating, after all - mravg?

Triple T, I think that Physiology, in general, is indeed very interesting. I don’t know how I said it in my previous post, but I intended to say that I am not well educated in penis physiology, not that it isn’t interesting.

In fact, I have always been interested in the medical sciences, and found a way to combine my engineering studies with medicine when I went to graduate school for biomedical engineering. I wasn’t a good enough student to be a doctor, but if I had to do it all over again, that is probably what I would want to be. I envy guys like you and pudendum.


Horny Bastard

Originally Posted by marinera
Pressure is going down while radius become longer. The net effect should be null. Also, Laplace’s equation regards static situations.


I’ve been rethinking this. I think I know what you’re saying, specifically with regards to pumping.

LaPlace’s Law is used to describe the tension on wall of a container from factors within it; pressure, radius and wall thickness.

Let’s say you apply a pump to your penis at 50% erection. Pressure in the cavernosa will actually fall (we’ve mentioned this numerous times in this thread). However, as everyone who pumps knows, you’re pulling blood into the cavernosa. This volume of blood acts to expand the cavernosa which is reflected in an increase in cavernosa radius. As the penis continues to expand, this increase in radius causes an increase in tunica tension in spite of the initial decrease in pressure. There is a point of time as the erection builds when the tunica starts to resist further expansion because of compliance. So even with the negative pressure on the outside of the penis, the pressure in the cavernosa rises above what it was when the pumping stated. Therefore tension does rise because of both an increase in radius (from volume) first, then pressure as engorgement continues.

If a constant negative pressure is maintained, your penis will reach a point when it no longer expands. Sustained pump pressure will maintain this tension on the tunica.

As several pumpers have posted, pumping does not usually bring the penis to peak erection; very plump yes, maximum erection no. This means that tunica tension is generated even though it is not stretched to its max. I believe this is why pumping leads to success.

Others have suggested that tunica expansion can only occur if the tunica is stretched to and beyond its present max. I think that the evidence of success by pumpers at less than peak erection counters this belief. In addition, high intensity peak stretch may cause greater collagen fiber thickening over fiber lengthening as the tunica “attempts” to better protect itself from stretch injury.

Top

All times are GMT. The time now is 05:26 PM.