Low pressure chamber- Part4

[FilmPA]

So why are they doing that?

[navallint]

because if they were just sitting there you wouldn't be able to tell they were hypoxic. that and it helps use up the oxygen faster when they're doing some kind of physical activity.

[FilmPA]

im guessing that activity in there is kindof dizzying with the repetitiveness. why dont they just use like a hand stamper and make them stamp things instead? Its less exhaustive and less dizzy...