So if you get tired muscles, they go hard and as they're hard they get, what would I say tense and as they get tense they get more tired more easily so you've got like a vicious circle.

如果你肌肉疲劳，那肌肉就会变硬，然后就会绷紧，进一步增加疲劳，所以就一直在恶性循环。

youdao

At the very beginning, I felt very tired. I got out of breath so easily.

刚开始的时候，我还真有点吃不消，没走多远就累得上气不接下气。

youdao