Founding training partner

Core Progression Elite Personal Training

A results-driven, science-based, one-on-one coaching group — and the training engine behind the Vitelize model in Colorado and Oklahoma. Founded by exercise scientist Jon Cerf in 2008.

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About the partner

Where your program comes to life.

For Vitelize members, Core Progression delivers the in-person side of the model: supervised one-on-one resistance training, body-composition scans and your in-gym welcome — coordinated with your clinical team through a single shared record.

Founded in 2008 by Jon Cerf — a Baylor-trained exercise scientist and Vitelize’s Fitness & Nutrition Expert — Core Progression built its reputation on results-driven, science-based coaching delivered one client at a time.

2008Building elite trainers
9Training locations
1:1Personalized coaching

What they deliver for Vitelize

The in-person side of the model.

Supervised resistance training

One-on-one, in-person sessions designed to protect muscle and metabolism through your program.

Body-composition scans

Monthly BIA scans track fat mass and lean mass separately, synced to your clinical milestones.

In-gym welcome & onboarding

Your fitness assessment, baseline scan, app setup and first protein supply — all in one visit.

Locations

Nine studios across two states.

Front Range Colorado and the Oklahoma City area, with more coming online through the Vitelize Partner Network.

Colorado

8 locations
  • Denver — Highlands
  • Denver — Wash Park
  • Northglenn
  • Arvada
  • Westminster
  • Boulder
  • Fort Collins
  • Colorado Springs

Oklahoma

1 location
  • Edmond — Oklahoma City area

Exact studio availability for Vitelize programs is confirmed during onboarding.

Jon Cerf, Founder & CEO of Core Progression

The founder

Jon Cerf

Founder & CEO, Core Progression · Vitelize Fitness & Nutrition Expert

A Baylor-trained exercise scientist, Jon built Core Progression’s supervised, results-driven training and nutrition model — the same approach that powers the training side of every Vitelize program.

See the science behind the method

Programs offered here

GLP-1 + TrainingPeptide Program

Both Vitelize tracks are available through Core Progression locations, with clinical care coordinated by the Vitelize team.

Train where the results are made.

Start a Vitelize program with Core Progression as your training partner.

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