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Questions tagged [physical-activity]

Questions about manual work and exertion during extra- and intravehicular activity, and physical exercises for recreation and body conditioning aboard spacecraft and in extraterrestrial habitats.

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20 votes
3 answers
3k views

How does astronaut activity from within affect a spacecraft?

Can physical activity from within a space craft affect it somehow? For example if somebody on the ISS performs repairs involving a lot of hammering, would it perhaps affect the station's orientation a ...
coleopterist's user avatar
  • 6,063
18 votes
4 answers
5k views

How would swimming on Mars feel, given the lower gravity?

The hypothetical swimming pool is inside a habitat at atmospheric pressure, and on Mars at 0.38g of Earth. What are the major differences regarding water properties (viscosity, surface tension, ...
drandrul's user avatar
  • 658
33 votes
10 answers
46k views

How far can you fall on the Moon without injury?

In the book "The Gods Themselves", Isaac Asimov imagines humans living on the Moon would enjoy much greater freedom of movement on the Moon. Each pair went up in unison; each pair rose and fell in ...
TK-421's user avatar
  • 1,328
7 votes
1 answer
416 views

Any scholarly or serious work in Sports Science for the low surface gravity of Mars or the Moon?

One of my favorite answers in SXSE is this one which addresses subtler effects of low gravity on sports that one might not anticipate. There are other answers there, and other questions and answers ...
uhoh's user avatar
  • 149k
9 votes
2 answers
10k views

Will colonists on Mars have enhanced physical mobility relative to an Earth-normal environment?

A Princess of Mars (1912) by Edgar Rice Burroughs in Chapter III describes this "superhuman leap" by the hero John Carter: My effort was crowned with a success which appalled me no less than it ...
James Jenkins's user avatar
7 votes
6 answers
2k views

What are the effects of body building on heavy planets?

This answer suggests that outer planets are very heavy and that lifting things on it is very energy expensive. If someone was to workout on a planet that is considered 'heavy' (whatever that means) ...
John Riselvato's user avatar
6 votes
1 answer
399 views

With so little gravity, would swimming on Enceladus be feasible for humans?

I'm working on a science fiction piece set on Enceladus, and I'd like the characters (human) to do a fair amount of swimming (they've managed to terraform a small bit of ocean for themselves). However,...
adamholtwrites's user avatar
20 votes
2 answers
4k views

How fast could a person run on the Moon?

Measures of the vertical and horizontal vectors of athletes running shows that once they get up to speed the ratio of vertical to horizontal exertion is about 4:1. This paper by Jean-Benoit Morin Ph.D....
kim holder's user avatar
  • 21.4k
13 votes
1 answer
332 views

At what surface gravity can't astronauts do full steps anymore?

We know that on the Moon in ~1/6 g the Apollo astronauts couldn't make full steps because they jumped with each step. At what surface gravity could you walk more like on Earth and at what gravity ...
Guest55's user avatar
  • 179
3 votes
1 answer
885 views

Does ISS crew exercise time count toward their X hour work week?

In the discussion in the comments of this answer, I questioned whether the (reported) full 40 hours of designated work time (per week) for a new International Space Station (ISS) crew member could be ...
called2voyage's user avatar
  • 23.7k