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Anorectal Physiology and the Puborectalis muscle
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Anorectal Physiology and the Puborectalis muscle

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Anorectal Physiology and the Puborectalis muscle

The puborectalis is a muscle that surrounds the muscular tube that forms the rectum at its junction with the Anus and is important in helping to maintain continence.
Contraction of this muscle causes a sling like action to pull at the rectum so that the tube closes at an angle to form a bend. This bend prevents faeces in the rectum from entering the anal canal.
Relaxation of the muscle causes the tension on the rectal tube to be released so that the bend at the junction of the rectum and anus opens up by straightening into an angle whereby a pathway is created between the rectum and anus.

The internal anal sphincter is an involuntary muscle and relaxation allows the stool to enter the anal canal for exit.
The external anal sphincter is a muscle which is under voluntary control and can be manipulated up to a limit by thought processes.
Contracting this muscle by voluntary thought processes allows us to “HOLD” the stool in place and ignore the urge to go until it is convenient to do so.

When we allow this muscle to relax, the anus, which is normally shut to a slit by the contraction of the sphincter, opens up to create a path which allows defecation to occur.
The puborectalis muscle is made of striated muscle fibers and can be considered to be under voluntary control.
Relaxation of this muscle can be manipulated by movement and posture. It remains contracted when we are standing or sitting and can be relaxed to remove the tension and the bend at the Anorectal junction in the squat posture.



The muscle that keeps a tight sling like action on the Anorectal junction to help maintain continence (the Puborectalis) can be manipulated by movement and posture.
The Squat posture allows the sling like puborectalis muscle to relax and release its grip on the rectal wall, thus creating a clear passage between the colon and the anus.
Leaning forward while in the squat posture also helps relax the muscle and helps remove the locking posture.
This passage is normally closed by the muscle in its contracted state to maintain continence in the sitting and standing postures.

Safe, complete and easy evacuation of the bowels (Sigmoid colon and Rectum) without straining may help prevent a lot of problems related to the repetitive injury caused by daily straining.

How to heal and prevent Bowel disorders

Diet is not about what you should NOT eat, it’s about what you should include in the diet that matters.
As long as your diet includes the correct balance of plant foods containing soluble fibre, insoluble fibre and resistant starch your colon will produce the perfectly formed stool. The important next step is to evacuate this stool without straining so that the body does not suffer from the pressures created each time the bowel is emptied.

In order to heal and prevent bowel disorders you need to make lifestyle changes that last the rest of your life time.

1. Include more fluids and plant food containing soluble fibre, insoluble fibre and resistant starch in the diet so that the perfectly formed stool will be made in the colon and beneficial bacteria will flourish and eliminate disease causing bacteria and fungi.

2. Evacuate the perfectly formed stool by adopting the squat posture to eliminate the need to strain during bowel movements.

It is not possible or safe to squat on the modern raised toilet seat installed in all western homes and it is impossible to squat for any length of time if you have not done this from childhood onwards. This makes the use of any raised platforms impossible to adapt to.

The SquattLooStool is designed to allow you to adopt the squat posture while seated comfortably on your raised toilet seat.
The single best and easiest lifestyle change you will ever make, leading to a healthier body.