Whilst not a respiratory disease, it is caused through smoking and others might find it interesing. I have written before about having to push through the the excruciating pain whilst walking to improve the condition, here is a study about it.
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No pain means no gain when it comes to reaping exercise benefits for people with peripheral artery disease (PAD), reports a new Northwestern Medicine study published in JAMA.
In people with peripheral artery disease, walking for exercise at an intensity that induces ischemic leg pain (caused by restricted blood flow) improves walking performance — distance and length of time walking — the study found. Walking at a slow pace that does not induce ischemic leg symptoms is no more effective than no exercise at all, the study showed.
news.feinberg.northwestern....
JAMA Network. Study Paper: