I have been doing some weight lifting. I am a 60 year old female and was diagnosed with COPD about 10 years ago. I use an oximeter to check my oxygen and noticed for instance that with the leg press machine my oxygen drops. Too much for the diaphragm I guess. But if my oxygen is OK can I do whatever I feel comfortable with? I use Advair 250/50, Atrovent and Albuterol.  I time these to use within an hour of starting my excercise.  I am guessing that I can do anything that I can as long as my oxygen doesn't drop below 90.  I don't think I can lose weight unless I can get cardio.  I feel I just have to try to lose some weight before this get bad enough for big steroids.  Smaller stomach and chest I think helps you to breath better.

Thank you.