u/Ok-Comfortable-5435

Has anyone here experimented with nasal breathing during aerobic exercise?

I’m an experienced runner with strong age group / a bit below semi-elite times.

I have been practicing different breathing techniques for a bit now, but yesterday went out for my first 5 mile jog while solely nasal breathing. At first it felt much harder, but by the end I was amazed at how smooth and comfortable it felt. I had to slow down a bit at the beginning, but my overall heart rate and pace were very comparable to what they are normally. I can’t imagine the sort of gains I might get doing this repeatedly.

Anyone have experience?