找到一篇文章，说

it’s crucial to remember that the guidance of cutting back on salt for the general population doesn’t apply to athletes.

还真有每小时运动要多进食多少盐的，不过范围太大，每人不一样，我觉得具体操作有困难。

https://www.maritaradloff.com/blog/sodium-needs-for-endurance-athletes