Raised in south St. Louis, John earned leadership stripes through ROTC at Washington University and more than 20 years of service in the Missouri National Guard. Those experiences—along with fatherhood and a lifelong obsession with human performance—shaped his conviction that smart work, strategic rest, and objective data are the real catalysts for growth.

In 2018 he launched BioFit with a single ARX machine and a bold promise: one or two coach-guided, 20-minute sessions each week can outperform the typical five-day grind. Today that promise is reality for hundreds of members, and John’s vision has earned him back-to-back recognition as a St Louis Titan 100 CEO—an award honoring the region’s most impactful leaders.

What you’ll notice when you train with John:

> He measures success in force curves and confidence boosts, not selfies.

> He treats exercise like medicine—precise dose, zero guesswork.

> He believes every client has untapped potential that, once unlocked, elevates the entire community.

When he’s not coaching on the ARX floor, you’ll find John mentoring veterans, swapping ideas with fellow Titan leaders, or enjoying downtime with his family—still living the WORK + REST = GROWTH mantra he teaches every day.

A South-City native and St. Louis University High “First Honors” grad (’04), Andrew earned a B.B.A. from Loyola University Chicago and spent a decade helping to sharpen operations and customer experience at Drury. Yet the work felt like, well…work. Then BioFit called. Within weeks of stepping onto the ARX platform, Andrew saw how precise resistance and real-time metrics could transform bodies and mindsets faster than any traditional program.

He partnered with founder John Zarbock in 2019 and now channels his business acumen into one mission: make world-class, time-efficient training accessible to every neighbor who walks through the door.

What to expect when you train with Andrew

> Numbers to prove it. He’ll show you the force curve, not just the mirror, so you see progress in black and white.

> Zero fluff. Every cue, rest interval, and recovery tip is there because the data say it works.

> A coach who listens. Andrew’s customer service and leadership background as GM at Drury taught him that the best solutions start with great questions.

When he’s not coaching, Andrew is usually scouting real-estate investments, adding passport stamps, scuba-diving new reefs, battling friends at fuzzball, or simply enjoying good conversation over great food with friends—living proof that strength training creates the freedom to pursue every adventure.

A Life in Science & Movement
Washington University in St Louis – Undergraduate work in Biology

Five years in Wash U’s Protein Chemistry Lab—mastering the nuts-and-bolts of practical DNA and Protein science.

Idaho State University – Doctoral work in Ecology and Quantitative Analysis

Three years as Basic-Sciences Laboratory Manager at Bastyr University, providing practical, science-based support for holistic health and medicine practitioners.

Decades of adventure athletics—free-weight training, distance running, mountain biking, rock climbing, and back-country treks across the Intermountain West—exploring and testing his limits.

Why Train (or Just Talk) With Eric
Evidence you can feel. He distills peer-reviewed research into simple, actionable habits—protein timing, sleep hygiene, breath-work, and recovery protocols you’ll actually follow.

Whole-life strength. A dedicated martial-arts student training under two-time world champion Jermaine Andre', Eric believes strength-training and fitness are the gateway to resilience, confidence, and a calmer mind, as well as to optimal healthspan.

Unlocking potential. Whether guiding a first-time lifter or a seasoned athlete, his mission is identical: unlock untapped potential and watch it ripple outward.

Beyond BioFit
Real-estate investor: Eric buys and manages rental homes, enhancing skills and knowledge in the most practical and fundamental domain: shelter.

ARSI Animal-Rescue volunteer: He assists his wife, the director and driving force behind ARSI (Animal Rescue of Southern Illinois) with TNR and rescue missions and maintains foster spaces in rededicated farm buildings.

Eclectophiliac: When not at BioFit, you’ll catch him training in martial arts, reading or listening to audiobooks on evolutionary biology, philosophy, history, or classic literature, and spending time with his partner in crime, Tammy.

Guiding belief: A stronger, wiser world starts with the choices we make for our own bodies, minds, and characters and the stewardship we extend to the lives around us.

BioFit is where he helps neighbors put that belief into daily practice.