Nicholas Rolnick, The Human Performance Mechanic

Nicholas Rolnick, The Human Performance Mechanic Certified Strength and Conditioning Specialist (CSCS)
Doctor of Physical Therapy
Learning and growin

Physical Therapist
Strength and Conditioning
Personal Training
Optimizing Movement
Brookbush Institute Author
Adjunct Faculty for Concordia University-Chicago teaching Kinesiology
"The Human Performance Mechanic"

04/23/2026

I'm very much concerned with getting people moving.

And I feel the fitness industry is a huge culprit in creating complexity where there doesn't need to be complexity.

When people say "they're just lazy," my first thought is: what is it about exercise that isn't appealing? The answer can't be "they just need to strap up the bootlaces and get after it." That doesn't work. It's never worked.
We created a lot of this problem ourselves. And we can undo a lot of it too.

Full episode: https://www.youtube.com/watch?v=WdkaNFYDVc0

04/21/2026

I sat down with Dr. Tim Werner for Episode 4 of the BFR Better for Results Podcast and he dropped one of the most practical things I've learned in a while.

If you've ever wanted to check whether your arteries are stiffening without an ultrasound or a $20K tonometer, pulse pressure is it.

Take your systolic. Subtract diastolic. You want 40-50 mmHg. If that gap starts widening over time, that's your early signal.

I'm adding this to my own check-ins.
Full episode: https://www.youtube.com/watch?v=0tJBL9FMhQU

04/20/2026

I’m going to start making this a series because this kind of 💩 is malpractice. I then asked her if she ever had a lumbar puncture for her and she said yes - the needle was huge. I said correct - that’s how you can mobilize your cerebrospinal fluid 😘.

04/19/2026

Dr. Loenneke gave the most honest training advice I've heard in a while on the podcast:

"Just train."

And I had to call it out:

"Jeremy, that's not sexy to put on Instagram. Just train, full range of motion, close to failure. That's not gonna get you clicks, not gonna get you views."

That's the real problem in the fitness space. The advice that actually works is too simple to compete with the content that gets rewarded. Simple is boring. Boring doesn't go viral. People keep reaching for complicated solutions because complicated is what the algorithm serves them.

And that's why only a few ever get exceptional results.

Full episode: https://www.youtube.com/watch?v=WdkaNFYDVc0

04/19/2026

Here’s a clip with from the BFR Better For Results Podcast last year (season 2 coming in q3) where we discuss social media dispersion of advice. Even would agree, the evidence as is isn’t sexy and won’t get you clicks. So what happens - fitfluencers create unnecessary complexity for clout. This creates a feed forward negative cycle where people think they need to do XYZ things to train which is simply not true.

What do you think about how social media discusses and ?

04/17/2026

Literally first thing one of my patients said to me today as they performed imaginary . Go figure.

04/17/2026

"Somehow this became controversial, and I don't even know how."

Dr. Jeremy Loenneke said it on the podcast, and I keep coming back to it. Heavy loads are required for maximal strength. That's not controversial. It's what the data has shown for decades.

The reason people struggle with it is the assumption that a change in muscle size must equal a change in strength. It doesn't have to. Many loads build muscle. But strength is a specific, neurological adaptation that responds specifically to lifting heavy.

Full episode: https://www.youtube.com/watch?v=WdkaNFYDVc0

04/15/2026

Single leg hip bridge is a functional screen + rehab staple of mine

Drive through the heel, keep the pelvis level, and squeeze the glute at the top. Watch for lumbar hyperextension and contralateral pelvic drop: both signal the low back is compensating (likely) for underactive glutes or weak hip abductors.

Testing >20 reps per side? Note side-to-side asymmetry. This is primarily a strength endurance measure, but endurance capacity tends to track with underlying strength making it a practical surrogate when you don’t have access to formal strength testing.

04/13/2026

How many sets do you actually need?

I sat down with Dr. Jeremy Loenneke, one of the most published researchers in the BFR space, and he put it simply: many roads lead to growth, but very few lead to strength. And beyond 3-4 sets to failure, the additional benefit becomes nearly impossible to detect.

A lot of people are doing a lot of wasted sets. Not wasted for enjoyment, but wasted for adaptation.

If you need more volume to stay motivated, by all means do it. But if you want to get in, get the stimulus, and get out, the science says you can.

Full episode: https://www.youtube.com/watch?v=WdkaNFYDVc0

04/10/2026

Masters athletes, man.

The population who needs to reduce mechanical loading the most.

I've been able to get women over 55 incredibly strong using low-load BFR. They're now CrossFit Games-level competitors as a result of being able to build strength without having to do super high volumes of heavy strength training.

Which, at that age, you shouldn't have to be doing anyway.

Full Episode 2: https://www.youtube.com/watch?v=YpdJz4W3csg

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