XPT Co Creator
Head Program Director
Brian Mackenzie is a world-renowned strength and conditioning expert and the innovator of the endurance, strength and conditioning paradigm. He has studied altitude and hypoxic training for over 10 years, and has run the Western States 100 and is a finisher of the Angeles Crest 100-mile endurance run. He authored the book “Power Speed Endurance” (www.powerspeedendurance.com), which specializes in using movement as a diagnostic for sport. MacKenzie’s program has taught 50+ seminars per year worldwide and has provided free programming via PSE.
MacKenzie and his program have been featured in Competitor Magazine, Runners World, Triathlete Magazine, Men's Journal, ESPN Rise, The Economist, Tim Ferriss' New York Times bestseller The 4-Hour Body, Men's Running UK, LA Sport & Fitness, Muscle & Performance Magazine, and Rivera Magazine. Brian works with several CrossFit Games athletes including Rich Froning Jr, Dan Bailey, Annie Thorsdottir, Emily Bridgers, Danielle Horan, Lindsey Smith to name a few. Brian has worked with and married to Erin Cafaro MacKenzie (2X Olympic Gold Medalist in Rowing – W8+), Taylor Ritzel (2012 Olympic Gold Medalist – W8+), Sara Hendershot (2012 Olympian – W2), Laird Hamilton, Jamie Mitchell, Koa Rothman, Koa and Alex Smith, Nathan Florence, and Elliot Sloan.
Brian MacKenzie http://brianmackenzie.tumblr.com/