Persistent Performance
Injury Recovery & Longevity Training

Two hips.Still rolling.

You're not getting too old. You just need to train and exercise wisely.

Kevin Brown, MPT, PT for 38 years and 3rd-degree BJJ black belt, has two total hip replacements and still trains. Mobility first, strength second, whatever sport you play.

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Kevin Brown in a white gi pinning an opponent with knee on belly during a Brazilian Jiu-Jitsu competition On the mats
38Years as a PT
2Total hip replacements
3°Degree black belt
63Years old, still training
The Program · Open Now

Hip and Knee Mobility Fundamentals

A focused course for rebuilding hip and knee mobility after injury or surgery, with a real path back to the sport you love.

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7 days free, then $25 a month. Cancel any time.
  1. 01Mobility first
  2. 02Then strength
  3. 03Back to your sport
The Story

Built from inside the injury

Kevin wrestled at the University of Iowa under Dan Gable, then spent 38 years as a physical therapist: sports medicine, industrial rehab, geriatrics, fall prevention. In 2006 he started Brazilian Jiu-Jitsu. He's now a 3rd-degree black belt who has won Masters divisions at Worlds and Pan Ams.

Persistent Performance exists to turn that recovery, clinical and personal, into a system anyone can use: how to train around an aging or replaced joint, how to come back after surgery, and how to keep training for decades instead of quitting after the first serious injury.

"You, too, can learn to train despite whatever you're going through."

Both heels broken. Still training.
InjuryResult
  • Dislocated elbow Bounced back
  • Both shoulders, surgery Bounced back
  • Both knees scopedMultiple times Bounced back
  • Both heels broken at onceRight heel reconstructed with 9 screws Bounced back
  • Two total hip replacements Bounced back

Three months in a wheelchair after the heels. He returned to training after every one.

Kevin Brown in a white Gracie Barra gi with his black belt, competing at Worlds
In Their Words

They bounced back too

★★★★★

Invaluable

“Kevin Brown is a master Physical therapist. His insight into my personal needs and his ability to challenge me without harmfully overexercising my body has resulted in a near-miraculous recovery from four joint replacements and two surgeries. These occurred over a period of 4 years during which my strength and balance severely deteriorated. I am now close to normal and on my way to being in better condition than I was when I was five years younger. Kevin's work has extended my life and allowed me to be as productive as ever.”
Martin CooperMember, National Academy of EngineeringInventor of the handheld cell phone97 years old in 2026
★★★★★

Methodical

“After two extensive shoulder surgeries (torn rotator cuff, supraspinatus, and long head of the biceps) plus knee surgery for a torn meniscus and microfracture, I was diligent and consistent with Kevin's post-surgery rehab. His care was incredible: efficient, professional, and hands-on. He was slow and methodical, talked me through every exercise and modality, and mapped out my recovery over many months.”
Cameron O’Brien-TrickySouthport Sharks, 1985–1995 (Australian rules football)Captain-coach of the undefeated 1992 premiership teamTwo-time premiership player, 1990 & 1992
Free Kevin Brown demonstrating a hamstring stretch on the mats
Free Guide

Why your hamstrings won't loosen up

Tight hamstrings usually aren't the only problem, but they can be a direct cause of compensation elsewhere, and sometimes they're compensating for something else entirely. This free guide breaks down why stretching harder doesn't always work, and what to actually check first.

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  1. 3 Rules for Training BJJ With an Artificial Hip
  2. Why Your Hamstrings Won't Loosen Up

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Rolling wrecks necks. Two quick fixes I use with my jiu-jitsu guys. Rolling wrecks necks. Two quick fixes I use with my jiu-jitsu guys. It's not only about strength. It's hip mobility. It's not only about strength. It's hip mobility. Took a knee to the eye the other night. Took a knee to the eye the other night. His knee pain made deep positions feel impossible. His knee pain made deep positions feel impossible. Want better hamstring mobility without forcing it? Want better hamstring mobility without forcing it? Back pain case study: 46-year-old BJJ instructor. Back pain case study: 46-year-old BJJ instructor. Master Marcelo Pereira: 40 years in Brazilian Jiu Jitsu. Master Marcelo Pereira: 40 years in Brazilian Jiu Jitsu. Two total hip replacements. Still training jiu-jitsu. Two total hip replacements. Still training jiu-jitsu.