How to prevent and treat muscle strain?

如何预防和处理肌肉拉伤？

I assumed it was just a minor muscle strain.

我假装这只是一个不要紧的肌肉劳损。

The most common injury is muscle strain, Spang said.

斯潘说最为常见的伤是肌肉拉伤。

Avoid muscle strain by warming up with slow jogging.

通过慢跑热身避免肌肉损伤。

Avoid muscle strain by warming up with slow jogging.

先慢跑热热身，免得拉伤肌肉。