我很少锻炼。

I rarely go to exercise.

所以我刚才气都喘不过来，这是因为我平时很少锻炼的缘故。

That is why I was so out of breath, for I am a man who takes very little exercise.

梅奥诊所指出如果这些在过去很少锻炼的话，这样的情况是很容易发生的。

The Mayo Clinic says that could be true if they have not exercised in the past.