Hi bogangles, and thanks for your post and question - it's a good one! I see our fellow community member, , has already provided an answer and further explanation for you. I agree with all that he has said, too. From his own experience, this works quite well for him. From my clinical experience, taking care of patients for many years, exercising and staying active is a very good way to help to manage this disease successfully.
I thought you might be interested in reading more about COPD and exercising. Towards that end, and for your convenience, here is a link to several articles we have published (right here on COPD.net), which speak to this important concern: https://copd.net/search?s=exercise%20. I do hope this provides you with some additional insight going forward.
All the best,
Leon (site moderator COPD.net)