Can the planned full suspense hang accidentally become a partial suspense hand?

[Suizident]

Hello,

How much does the rope stretch when used for full suspension with a body weight of approx. 141.1 pounds?
I read in the forum that it is approx. 7%.

The situation is as follows:

The ceiling height is only 90 inches and the ceiling is made of plasterboard (i.e. limited load-bearing capacity).

Therefore, the anchor point should be on a brick wall, not on the ceiling. Dumbbells are not suitable as anchor points
because the doors and door frames are of the cheapest construction and are already hanging loosely in
the wall.

Installing the pull-up bar, preferably at the top of the wall, will cost a few more inches.
Then the question arises, how long should the rope be between the knot that secures the rope to the anchor point
and the sling? Are there any disadvantages if the distance between the sling
and the fastening knot at the anchor point is kept very short, e.g., 2-3 inches?

Body length would be just under 70.9 inches. The head should also not hit the ceiling during convulsions
so that the neighbor does not fall out of bed (do you have to consider head twitching, or
does that not normally happen? The videos are not clear in this regard because there is usually
a lot of distance to the ceiling).

The rope is probably made of polypropylene, with a thickness of approx. 0.39 to looks like the one in the photo:




If the rope hypothetically has a stretch of 0.0 inches, the distance from the sole of the foot to the floor
(with the foot in a horizontal position, i.e., when the sole of the foot is horizontal to the floor) would be
approximately 5 to 6 inches.

Is that sufficient for a full suspension, or are the distances so short that it automatically
becomes a partial suspension? :) At the latest when the stool is removed and the ankle joints
have the opportunity to stretch downwards?

Perhaps bending the knees until unconsciousness, e.g., pulling the legs up so that there is no
contact with the floor (or does SI not allow this?).

Many thanks and best regards,
Suizident

 

[AreWeWinning]

Is that sufficient for a full suspension, or are the distances so short that it automatically
becomes a partial suspension? :) At the latest when the stool is removed and the ankle joints
have the opportunity to stretch downwards?

Looking at the numbers you mention, the difference between your height and the ceiling is 19.1 inches or about 49 cm, and the pull-up bar will be lower than the ceiling. That's hardly enough for full suspension. You can do partial in a standing position though.

Even with a static rope, there will be stretch and height loss. The rope and the knots will move and stretch under load. Your neck will be squeezed and the noose will lose height. Etc. I believe the support has to be at least 40-50 cm high for full suspension – it depends on a lot of factors, so it's just an educated guess. The higher the better.

Are there any disadvantages if the distance between the sling
and the fastening knot at the anchor point is kept very short, e.g., 2-3 inches?

Not that I know of. You can tie it as tight as you can or need to.

The head should also not hit the ceiling during convulsions
so that the neighbor does not fall out of bed

It won't. Unless you use a pulley or something, it would be impossible to tie a setup that close to the ceiling.

The rope is probably made of polypropylene, with a thickness of approx. 0.39 to looks like the one in the photo

That doesn't look like polypropylene. It's some sort of natural material. I'm not very familiar with those. In that thickness, it can be strong enough, but if you're paranoid (I would be), then get a polypropylene (PP) or polyester (PES) rope. If you want low stretch due to concerns with height, get a polyester (PES) rope or a static climbing rope with low elasticity.

 

[Worndown]

Test the rope. Loop it over something solid, grab it and see what it does.

 

[Gustav Hartmann]

The diameter of your neck will be reduced by about 50%. Find a stick or tube of this reduced diameter and put it in your noose. Than grab the tube with both hands and make some pull-ups. When your neck is at the level of your noose your feet should not touch the ground. This way you test the elasticity and stregth of your set-up.