breathing protocols

Unscared | Slow Dance With Fear: Breathing For Performance And Recovery with Brian Mackenzie

Brian Mackenzie is a human performance and movement specialist. He has studied performance and movement for more than a decade along with altitude, hypoxia, breathing mechanics, heat, and cold exposure. He co-authored the book β€œPower Speed Endurance”, and NYTimes Best Seller UnBreakable Runner. He founded and created Power Speed Endurance (PSE), which specializes in movement …

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