Concepts of Speed and Ground Reaction Force
Why sprint speed is a force-application problem before it is a leg-turnover problem, and what that changes about how you program acceleration work.
About & Education
Jonathan StavaNine certifications. Five years in a hormone clinic. One standard of evidence.
iPerform University exists because AI can write a training program in four seconds and has no way to tell you whether it is safe for your shoulder, appropriate for your testosterone protocol, or supported by anything more than an internet consensus. The credentials below are what stands behind every verified program on this platform.
9
Certifications
9+
Years coaching
5
Years clinical
Certifications
The credential wall
NASM
National Academy of Sports Medicine
- CPTCertified Personal Trainer
- CESCorrective Exercise Specialist
- PESPerformance Enhancement Specialist
- FNSFitness Nutrition Specialist
- WLSWeight Loss Specialist
- MMACSMMA Conditioning Specialist
- SFSSenior Fitness Specialist
EXOS
EXOS
- XFSEXOS Fitness Specialist
PN
Precision Nutrition
- L1Certified Nutrition Coach, Level 1
Experience
Where the reps were earned
- 2021 — Present
Senior Client Relationship Manager
Ageless Men's HealthFive years inside a testosterone replacement and medical weight-loss clinic. Daily work translating lab values, hormone protocols, and physician direction into training and nutrition plans patients can actually follow — and recognising when a training problem is really a clinical one.
- 2019 — Present
Founder & Head Coach
Stava Athletics LLCPrivate performance and corrective-exercise practice. Assessment-led programming for athletes, general population clients, and post-rehab cases, alongside long-form writing on applied exercise science.
- 2017 — 2021
Certified Personal Trainer
Anytime FitnessThousands of coached sessions across every population — first-time lifters through competitive athletes and senior clients. The floor time behind every assessment standard used here.
Philosophy
How programs get written here
Assess, then prescribe
No program is written before movement is screened. Compensation patterns dictate the corrective phase; the corrective phase dictates the loading phase.
Cite it or drop it
Every recommendation traces to human evidence with a stated confidence level. Where the research is thin, that gets said out loud rather than dressed up.
Clinical context matters
Hormones, medications, sleep and stress move outcomes as hard as sets and reps. Clinic experience keeps those variables in the plan instead of outside it.
Selected writing
Published work
Diindolylmethane (DIM) and Athletic Performance
A measured look at the estrogen-metabolism claims around DIM — what the human data supports, what it does not, and where dosing evidence runs out.
Originally published through Stava Athletics LLC. These pieces are being migrated into the iPUTC research library, where each will carry its full citation list.
“A program that cannot survive a question about why it was written that way was never a program. It was a guess with formatting.”
Jonathan Stava — NASM-CPT, CES, PES, FNS, WLS, MMACS, SFS · EXOS XFS · PN L1