As important as it is, I've never considered it much until I heard a guy talking about it on the radio. I'm a long term mouth breather. Had a badly broken nose for a long time that made it worse. Got that fixed but already had the habit.
So I've been focusing on NOT breathing through my mouth when running lately. And honestly, it seems to make things much better. Not as thirsty. Seem to have more stamina when running. Main change seems to be from short, shallow, fast mouth breathing when I'm winded to deeper but not as fast breathing through my nose. Seems to keep my heart rate slightly lower. It can be tough to maintain at times. But I'm running at the same speeds I normally do on the treadmill and maintaining it. And a couple trail runs seem to have stayed pretty much the same. Tuesday I ran the downhill and flat sections of a 2.4 mile trail, which was most of the trail, and hardly felt winded even with a 17.5 lb pack. No mouth breathing at all.
I'm sure the more serious runners here have figured this out but thought I'd toss it out there. Might be worth paying attention to when you work out. Also, mouth breathing is supposed to trigger a stress response in the body that's not very good for you. I'm guessing a fight or flight kind of instinct.
So I've been focusing on NOT breathing through my mouth when running lately. And honestly, it seems to make things much better. Not as thirsty. Seem to have more stamina when running. Main change seems to be from short, shallow, fast mouth breathing when I'm winded to deeper but not as fast breathing through my nose. Seems to keep my heart rate slightly lower. It can be tough to maintain at times. But I'm running at the same speeds I normally do on the treadmill and maintaining it. And a couple trail runs seem to have stayed pretty much the same. Tuesday I ran the downhill and flat sections of a 2.4 mile trail, which was most of the trail, and hardly felt winded even with a 17.5 lb pack. No mouth breathing at all.
I'm sure the more serious runners here have figured this out but thought I'd toss it out there. Might be worth paying attention to when you work out. Also, mouth breathing is supposed to trigger a stress response in the body that's not very good for you. I'm guessing a fight or flight kind of instinct.