Eric Cruz was 13 years old when specialized fitness coaching changed how he understood his own body. He was overweight, unsure of himself, and looking for a way forward. What he found in exercise and nutrition didn’t just change his physical condition. It changed his sense of what was possible. He became, as he puts it, his own project — and he hasn’t stopped since.

Progressive Health & Performance started in 2016 as a one-coach mobile operation in the Inland Empire. Today it runs two locations in Murrieta and Temecula, employs more than a dozen fitness professionals, and serves a client population that most gyms actively decline to take on.

Twenty Clients in a BMW i3

The mobile training years had a specific shape. At peak, Eric was managing 20 clients from a BMW i3 — a small electric vehicle that handled Southern California gas prices well but did not offer much cargo room. That turned out not to matter.

The traditional body composition clients he worked with already had enough equipment at home. They had tried to do it on their own, decided they needed a professional, and wanted convenience. Eric provided it. The model worked logistically. It did not work personally.

By February 2018, Eric opened PHP’s first physical studio in Murrieta. The community dimension he had been missing was no longer a deficit.

The Partnership That Wasn’t Supposed to Happen

PHP’s second chapter involves Anthony Cruz, but the relationship is not what most profiles of the practice have described. Anthony is Eric’s second cousin. They did not grow up together. They met randomly in college at Missouri State, became close, and only discovered the family connection later by tracing their heritage.

The split is deliberate and clear. Eric is the visionary — outgoing, community-focused, big-picture, and by his own description less organized and more improvisational. Anthony is the integrator — analytical, detail-oriented, a planner by training and temperament, shaped by active duty military service including a role as Officer in Charge of the Army’s Master Fitness Trainer Course. He now serves as a Captain in the Army Reserves.

Eric notes that staff management has produced the hardest conversations between them — not the partnership itself. They trust each other and share a commitment to the mission, which has proved a more reliable foundation than proximity or shared history.

The 2021 Decision

PHP did not launch as a specialized fitness practice for medically complex clients. That became a deliberate identity in 2021, five years in, when client volume finally made the pattern visible.

Today, PHP’s client roster includes people living with Multiple Sclerosis, Cerebral Palsy, Lupus, Rheumatoid Arthritis, and Lyme Disease, as well as cancer survivors, stroke patients, people with brain and spinal cord injuries, and amputees. Every coach on staff is a degreed kinesiologist. The facilities include an in-house physical therapist and chiropractor adjacency at both locations, plus sports massage support.

How to build referral relationships that keep specialized coaching within scope.

Systems as the Risk Management

The liability question that follows any description of PHP’s client roster has a direct answer: systems.

That two-appointment sequence accomplishes something beyond liability management. It resets the client relationship from the start. Most PHP clients are not working toward a time-specific weight loss goal. They want to function better. That framing allows a conservative early approach that ramps up as the relationship and the data develop.

The Economics Nobody Talks About

The business case for serving medically complex populations is not self-evident to most operators. Eric makes it in one metric.

The retention math is the model. A general-population studio competes on price, convenience, and programming variety. PHP competes on outcomes for clients who need the work to continue indefinitely. That is not the first thing those clients cut when finances tighten. It is closer to a medical necessity than a discretionary fitness expense.

The Credential Path That Actually Changed the Practice

Eric holds a Bachelor’s in Kinesiology from Missouri State, a Master’s in Nutrition and Exercise Physiology from Cal State Long Beach, and a Functional Diagnostic Nutrition Practitioner certification, among others. For a coach starting from a single personal training credential and serving increasingly complex clients, he offers a specific hierarchy.

On the FDN-P timeline, he is direct: he felt confident running labs and building protocols within a year, aided by the concurrent master’s program. His broader framing is more useful than any single credential recommendation.