Here's what I wrote in another thread.
Here's something that helps me figure it out.
stand up with your legs about shoulder width apart. Put your finger under the penis by your sack. Go ahead and flex and feel your bc flex. Obviously you don't want that so try to "lightly flex" focusing on just moving the top of your penis. Keep feeling to make sure you don't flex the bc.
This flex should be light. Too hard flexes the bc. I do this flaccid and can see the top part of my penis kind of pulling inward.
Remember light flex and you should be able to isolate it.
Takes some practice. I've almost got it now where I don't flex the bc at all, and can start to hold it for a few seconds.
Hope this helps.
A very nice explanation, I can see and sense that there are at least two muscles at work. I noticed this before but didn't pay much heed since the way I do kegel mostly covers both of them, I rarely just do kegel just as moving the area between the anus and scrotum (perineum I think) I mostly work the whole area, which is probably why I had a very good results with kegels. This just might be that missing thing.
I am not sure that this is the IC how ever it is definitely different than just moving the in the perineum area, so odds are it probably is.
I will work on this more and edit kegel master list with this updated knowledge when I feel concrete changes. While preforming a IC clench now is not hard, performing an IC hold while flaccid is still a task.
Reverse kegel in a way affects this area also as much as the area between the anus and scrotum, so I think that reverse kegel should still be used in order to decrease the stress in this area.
Can we now finally view the pelvic floor movement exercises (ic, kegel and root lock) as exercises focusing on individual muscles. In other words now including the ic clench, we have a kegel clench which is effectively a bc clench (although again I alway do my kegels as a combination of IC and BC clenches it seems) and the root lock as the PC clench. Is that correct?
I think I just might devote a month or so focusing only on IC clench (hold, towel raises etc) and reverse kegels (because there is no way I can do reverse IC without somewhat inflating the bc area) to see the effects.