4 ms·
The heart isn't responsible for pumping blood through your body all by itself, it's supported by the skeletal-muscle pump - but that only works when your're mov
by brazzy 6y ago
The heart isn't responsible for pumping blood through your body all by itself, it's supported by the skeletal-muscle pump - but that only works when your're moving. Hanging the right way up is in fact even worse and can kill you in less than an hour through something called a "suspension trauma".
- waheoo 6y agoI wonder if this is why sitting at a desk is so bad for us. Half way to torture.
- grecy 6y agoYes indeed. The word for paid work in French is travail, which has the same Latin base as the word torture.
- deleted 6y ago[deleted]
- pezezin 6y agoI didn't know about that but you are right. Not only French, also Spanish, Portuguese, Catalan, Galician, and maybe other language. It comes from a torture instrument called "tripalium", literally "three sticks".
- totetsu 6y agoThats why you need foot straps on your fall arrest harness. https://www.nationalsafetyinc.com/mobile/ReliefStep-Fall-Protection-Rescue-Device-P737815.aspx https://www.nationalsafetyinc.com/mobile/ReliefStep-Fall-Pro...
- msrenee 6y agoI thought that happened with fall arrest harnesses as the leg straps cut off the blood supply through your inner thigh. It's not so much the suspension, but where the straps cross.
- brazzy 6y agoNo,that's not true. The femoral vein is too deep to be cut off. The position of the leg straps is relevant because proper leg straps allow you to hang in a sitting position.
- msrenee 6y agoHuh. I suppose thinking back the guy that told me that generally didn't know what he was talking about. I never bothered to double check. I don't do anything that I need a fall arrest system anymore, but maybe I should do some reading.
- parliament32 6y agoThat's not true, I've definitely spent more than an hour hanging around in a rock climbing harness.. and that's just two thigh straps + waist.
- brazzy 6y agoIt absolutley is true. The thigh straps are exactly what prevent suspension trauma because they allow you to take a sitting position rather than having your legs hanging straight down, so there is much less distance to overcome. Besides, you generally move around while rock climbing, so the skeletal-muscle pump is engaged.