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Horizontal running inside circular walls of Moon settlements

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Re: Horizontal running inside circular walls of Moon settlements

#51

Earlier quoted context omitted.

You probably know this already, but for a while people were toying with the idea of a "childbirth centrifuge". https://patents.google.com/patent/US3216423A/en There's probably a reason it never caught on.

Reason one - We already have gravity here. Reason two - Childbirth + vertigo? WTF! Clearly they should have gone with a rudimentary linear accelerator such as a bungy drop or bouncing elevator type system!

> Clearly they should have gone with a rudimentary linear accelerator

Like a railgun.

Re: Horizontal running inside circular walls of Moon settlements

#52

I didn't see any mention of having a spinning surface. A tapered cylinder "gravity gym" with adjustable angled walls, and variable speed spinning, could smoothly create much greater "gravity". Spin gravity would also enable body weight exercises, core exercises, stationary or small area cardio like exercise bikes, VR games, yoga, etc. Even sleeping. EDIT: I missed this: > but Moon-based centrifuges allowing locomotio…

On the Moon, at normal pressure, humans shoud be able to get enough exercise in a jungle gym, or by donning a set of wings, flapping them to fly.

Re: Horizontal running inside circular walls of Moon settlements

#53
post #43

Finally I get to be that guy in the comments with a weird about of relevant experience. I built the world's largest hamster wheel in 2012[1], a large rotating circular platform ~6m in diameter. It was a fun and unique experience to run on for a short amount of time, but most people would get dizzy after a few minutes of jogging on it. The curved platform also turned out to be a bit of a tripping hazard. It was more o…

With a hamster wheel, aren't you basically running in one spot near the bottom? If so, do you know what causes the dizziness?

Re: Horizontal running inside circular walls of Moon settlements

#54

Is there a reason something like a water rower wouldn’t work on the moon? Possibly with a weighted vest or a weighted seat. Rowing is pretty full body and doesn’t seem that reliant on gravity.

I wonder if they use a rower on the ISS.

[dead]

Re: Horizontal running inside circular walls of Moon settlements

#55

Is there a reason something like a water rower wouldn’t work on the moon? Possibly with a weighted vest or a weighted seat. Rowing is pretty full body and doesn’t seem that reliant on gravity.

I'm always baffled that these studies don't put more emphasis on resistance training, since the main issue is that your body no longer has to resist the forces of gravity on a day-to-day basis. In theory exercises like the major compound lifts should go a long way because they stimulate almost every muscle in the body. You get a lot of sustained muscle growth out of doing big lifts even just 2-3 times of week. Of cou…

But you also want to have impact shocks, like your foot hitting the ground, to stimulate bones. Resistance training is certainly helpful, and perhaps a rowing machine could be modified to give you that shock to the legs, too.

Re: Horizontal running inside circular walls of Moon settlements

#56

Could you do this in zero-G, too? This seems like a lot simpler than trying to have a section of a space station rotate and maintain seals around it.

You might like this video from Skylab: https://youtu.be/S_p7LiyOUx0?si=J_JqunYl2OkeROa7

(23 second mark)

Re: Horizontal running inside circular walls of Moon settlements

#57

Is there a reason something like a water rower wouldn’t work on the moon? Possibly with a weighted vest or a weighted seat. Rowing is pretty full body and doesn’t seem that reliant on gravity.

They do mention that an erg doesn't have the full effect wanted:

> Low-intensity steady-state exercise or high-intensity interval training on ergometers may serve to preserve cardiorespiratory fitness [12,25–27] but have little impact on muscle and bone mass.

Re: Horizontal running inside circular walls of Moon settlements

#58

Earlier quoted context omitted.

You probably know this already, but for a while people were toying with the idea of a "childbirth centrifuge". https://patents.google.com/patent/US3216423A/en There's probably a reason it never caught on.

Reason one - We already have gravity here. Reason two - Childbirth + vertigo? WTF! Clearly they should have gone with a rudimentary linear accelerator such as a bungy drop or bouncing elevator type system!

While on the subject of inventions to aid with childbirth, I'll leave this here:

https://science.howstuffworks.com/science-vs-myth/everyday-m...

Re: Horizontal running inside circular walls of Moon settlements

#59
post #20

I didn't see any mention of having a spinning surface. A tapered cylinder "gravity gym" with adjustable angled walls, and variable speed spinning, could smoothly create much greater "gravity". Spin gravity would also enable body weight exercises, core exercises, stationary or small area cardio like exercise bikes, VR games, yoga, etc. Even sleeping. EDIT: I missed this: > but Moon-based centrifuges allowing locomotio…

I assume they’ll eventually just build a big gravitron. The seals would be tricky (I guess the axle it spun on could contain a ladder and door?) Of course they could simply stop spinning it whenever they needed to open an airlock. (Or just put it in orbit, where these problems are easier to deal with and you don’t need to deal with day/night radiation shielding/heating.)

In the Luna series they discuss this, they basically have a central axis where you enter and then can 'step' up higher to faster spin rates/more gravity (basically a tapered cone)
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