Death of Vertical Tibia, Usain Bolt, Complex Patients, and More – Movement Debrief Episode 13

Movement Debrief Episode 13 yesterday involved quite a few rants. Must’ve been the ketones talking.

Here’s what we talked about:

  • Restoring sensation with my patient with low back pain
  • Why it’s okay to have an angled tibia during squatting
  • Would any intervention help/hurt Usain Bolt?
  • The complexity of Usain Bolt
  • Struggling with a complex patient
  • Dealing with uncertainty
  • Embracing the struggle

If you want to watch these live, add me on Facebook, Instagram, or Twitter. (occasionally) They air every Wednesday at 8:30pm CST.


Here were some of the links I mentioned in this Debrief.

How to Deadlift – A Movement Deep Dive

Squatting Bar Reach – A Movement Deep Dive

The Sensitive Nervous System – Read my book notes here

Clinical Neurodynamics- Read my book notes here

A Study of Neurodynamics: The Body’s Living Alarm

Mobilisation of the Neuroimmune System – Read the course notes here

Explain Pain– Read the course notes here

Extreme Ownership

The Obstacle is the Way

Ego is the Enemy

The Subtle Art of Not Giving a F*ck

Restoring Sensation

Death of Vertical Tibia

Usain Bolt

Complex Patients


  1. Hey Zac,

    I have been hitting up your site every now and then for the last 3 months. Thanks for all the great content. I found your site originally through your review of FMS’ Level 2, which I am leaning towards taking at the end of the month. However, since poking around your site I notice that you’ve taken a gang of PRI courses. I have read some PRI content as it relates to some postural issues that I have (specifically on my left side – resulting from carrying heavy book-bags on my left side for years) that affects my breathing and movement. I even tried some supine, 90-90 chair, balloon pelvis reset exercise. It seemed too complicated to try on my own with just a youtube video.

    I’m a kinesiology student and former trainer – but I’ve stop training (myself and others) and dedicated myself to finding a way to work out my muscular imbalances. I’m level one certified and like the FMS approach, however, I can’t even get my breathing right and lock good posture in enough to take advantage of the correctives.

    So my questions to you are, have you moved away from the FMS system? What are your thoughts about the SFMA in providing more therapeutic interventions – like in my case? And do you think the PRI material is manageable for someone with just an undergrad kinesiology background?

    Thanks in advance!

    1. Hey Ian,

      Thank you from the kind words and I appreciate you reaching out.

      In terms of systems, I don’t know if the system you use necessarily matters, as many things can be effective in the right scenario.

      The most important thing is the outcome. Are you improving the things that are meaningful to you?

      Personally, I use many of the FMS/SFMA activities, but don’t necessarily use their systems to evaluate. Only aspects. My current system is much more PRI-influenced, but I’m even modifying that do a degree.

      I think that, if you understand anatomy and kinesiology at the rudimentary level, the basic courses (myokin, postural, pelvis) are within the wheelhouse of someone with your background.

      Again, if you find you get the changes you are looking for with the SFMA/FMS, great. Keep at it.

      Hope that helps,


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