Keijo!!!!!!!!

[Buffalobiian]

but how much time can they maintain it?

No idea. What determines that? We had a match of speed that showed us lung capacity determining endurance. I don't know what you can do to lengthen time-till-muscle-cramp.

My point is that Miyata found a trick that seems to be easily replicated. You can't just copy the other girl because lung capacity is genetic. Miyata needs something that has a genetic barrier, or a technique that requires so much dedicated practice that others can't easily pick it up.

The anime portrayed it as if she only needed one night, if not a week tops to get to 30 seconds.

[ForteCross]

No idea. What determines that? We had a match of speed that showed us lung capacity determining endurance. I don't know what you can do to lengthen time-till-muscle-cramp.

My point is that Miyata found a trick that seems to be easily replicated. You can't just copy the other girl because lung capacity is genetic. Miyata needs something that has a genetic barrier, or a technique that requires so much dedicated practice that others can't easily pick it up.

The anime portrayed it as if she only needed one night, if not a week tops to get to 30 seconds.

Even lung capacity can be prolonged or shrinked by training or smoking for example, its not just genetics.

Hell any atlete training in high altitude mountains will have a much easier time when competing in low altitude just because of the oxygen density in the air