Shrugged Collective

The Power of Breath and Temperature W/ Brian Mackenzie – Episode 239

What’s good Shrugged crew. This week we are coming at you with a familiar guest, Brian Mackenzie (@iamunscared). For those of you who don’t know him, Brian is the founder of CrossFit® Endurance, the author of Power, Speed, Endurance, and works with some of the top athletes in performance sport, such as CrossFit®, surfing and endurance athletics.

We dropped into RVCA headquarters to chat with Brian about a performance metric that is so often not talked about, breath. We dive deep into how you can use breath as a tool to control the nervous system, and bring your training to the next level by simple learning how to tap into your breathing pattern

We also get into how Brian is using things like ice bathes, sauna, and the unique combination of the two to control the body. We brought Brian on the show to chat about performance breathing, but naturally, we couldn’t stop at that. We get into training philosophy, nature integration, and a bunch of topics to get your gears turning in a new way.





For more:

Find Brian at his website Power Speed Endurance

Past Episodes with BMac:

  • Episode 82 – What All CrossFitters Should Know About Running w/ CrossFit Endurance Coach Brian Mackenzie
  • Episode 176 – Should You Go Hard, Easy, or Rest Today?
  • Episode 106 – Olympic Gold Medalist Rower Erin Cafaro and Brian Mackenzie of CrossFit Endurance

Follow Barbell Shrugged on Facebook, YouTube, Instagram and Twitter


Mike Bledsoe


  • Hey guys love the episode but I’m on the move today and was hoping you could help me form some bullet points on your topics. Mainly I’m looking for recommendations on: How to use the cold before bed and training and what it’s doing, how and when to use the the breathing techniques. Thanks again and I’m glad to see the OG’s back on the show

    • I put the shower all the way cold and just do 5 min. 10 minutes if I’m feeling like a badass.

      Pre-training I like to do a Wim-Hof style and post training a box breathing style with an extended exhale that is 2x or more my inhale.

      • I got a bit confused to after 40 minute mark in show…. if i can recap, please correct where i am wrong:
        – pre wod: do diaphragm breathing which is down regulating and preparing lungs for full breaths needed in workout, followed by up-regulating wim-hof breathing to prepare your mind and body for action?
        -pre bed: wim hof cold methods then wim-hof breathing to prepare you to listen to tired body and begin down regulating?

  • Hypertrophy is not just about vanity. All other things equal, a bigger muscle is a stronger muscle, and stronger muscles are better. Still may want to avoid the cold bath in some circumstances……..

  • Thank you for covering this topic. I only came to understand the power of breath after learning how to free dive and started noticing that my WOD’s and lifting were getting better not because I was rocking it in the gym, but simple because I was taking ten minutes out of my day to just sit and breathe. So bravo to you guys for covering this. I only wish more westerners understood the power of breath through the simple act of being present.

  • Love the show guys! Loving the bee aspects that aren’t just training related but also pre and post workout related and overall betterment of health.

    Is there a way to get links or direction on good literature to read on regulating and deregulating of the body for adrenal health? I know I can type that into google but want to see if your minds have anything specific.

Follow us

Don't be shy, get in touch. We love meeting interesting people and making new friends.