A science-based Performance System for men who've built a big life and want a body that can keep up with it.

Take the Capacity Assessment

Train Smart. Build Capacity. Perform for Decades.

Stay Fully Capable of the Life you Love.

THE CAPACITY SCOREBOARD

+18%

Strength

+25%

Engine

+15%

Recovery

Average change: 10 to 25%

Average change: 15 to 30%

Average change: 10 to 21%

Baseline to retest across 50+ clients over 2 years. Includes every client who completed the program, including those with smaller gains.

STEP ONE

Learn your constraint before you spend a dollar.

The Capacity Assessment takes a few minutes. You get a score and the single constraint most limiting your capacity. Then you decide whether a conversation makes sense.

Take the Capacity Assessment
Take the Capacity Assessment

You've tried programs before. You keep starting over.

Most fitness plans start with a workout.

Few start with the life you want and almost none find the one thing holding you back.

You add more effort, get the same results and start again.

The Capacity Project works the other way.

We start with what you want your body to be able to do, then work backward.

Six Months · Starting January 2027 · Limited to 20 spots

FitSpan is built on one question: Can your body support the life you want?

Functional Medicine

Physique Training

FitSpan

Takes you from unhealthy to healthy.

Gets you stronger and leaner.

Builds the capacity to do what you love, better and longer.

The goal isn't maximum fitness. It's enough reserve that your life isn't constantly running at your physical limit

”FitSpan gave me more confidence. It taught me what it needs to look like if you really want to improve your health. It gives you a road map for that.”

Curtis VandenBerg, MD

”Michael's a wealth of knowledge around functional strength. He's highly disciplined and his technical knowledge has been super valuable.”

Ian Milligan-Pate

”You learn so much about yourself, the process and develop valuable habits."

Ben Anderson

Increased Strength metrics: 10%

”There's a better chance you'll get results with Dr. Mike than with other coaches. Everything is results driven. He's going to fucking deliver. 100% on that.”

Sam Syed

A 90-day FitSpan group coaching program held April-June 2026

Apply for January 2027 Cohort

”FitSpan prepares you for all areas of life and 98% of things life's gonna throw at you.”

Nathan Smith

Increased Strength metrics: 21%

Increased Cardio metrics: 16%

Increased Strength metrics: 39%

Increased Strength metrics: 23%

Increased Strength metrics: 24%

Increased Cardio metrics: 14%

Results from the 2026 Denver FitSpan Project

THE FITSPAN METHOD

1. Define your Goal

3. Identify your Constraints

2. Measure your Capacity

4. Train and Adapt weekly

5. Retest and Sustain

person standing on brown concrete building during daytime

How FitSpan Coaching Works

Week 0 · Baseline

Weeks 1-12 · BUILD

Weeks 13-24 · PERFORM

Weeks 25-26 · PROVE

Testing, Wearable Data analysis and kickoff call with Dr. Donovan

Aerobic base, strength foundation, and making the Minimum week automatic. Midpoint retest at week 12.

Stronger and fitter under fatigue, with training increasingly specific to your goal and a rehearsal before the real thing.

Final retest, your before-and-after report, and the next goal.

What's Included

Capacity Assessment

Individualized Training Plan

Weekly Coaching

Know exactly where you stand across Engine, Strength, Recovery and Resilience. Retested at Month 3 and 6.

Custom programming built around your goals, schedule, and equipment. Open your app and execute without guessing.

Individual 30-minute calls and group calls in a dedicated pod of men like you.

Custom Nutrition Plan

Wearable Analysis

Travel Adaptation

Exclusive Access

Clear protein targets, training fuel, and direct travel playbooks for restaurants and alcohol.

We only track actionable wearable metrics instead of burying you in useless dashboards.

Hotel room sessions, time-crunched variations, and targeted preparation for heavy work weeks.

Priority access to future FitSpan program iterations, elite retreats, and live events.

WHY DR. MICHAEL?

I don't prescribe workouts and track your macros.

I build a system around your unique physiology and life.

I'm Michael Donovan - PhD physiologist, Performance Coach and Founder of FitSpan. I spent 6 years at NIH and 15 years in health promotion and employee wellness. I've been a competitive soccer referee for over 30 years and competing in endurance sports since 2007.

I look at how strength, aerobic fitness, nutrition, sleep and stress interact to build sustainable high-performance capacity.

FitSpan takes what the research says about strength, conditioning, recovery and adaptation and makes it work inside your busy life.

Apply for January 2027 cohort now

THE INVESTMENT

About $1,000 a month for a PhD physiologist who tests you, builds your plan, adjusts it when life breaks it and shows you the proof at the end.

$6,000

Paid in full for 6 months

$1,100

monthly for 6 months

LIMITED TO 20 members · Cohort starts January 2027 · Applications close mid- December OR WHEN IT'S FULL

Take the Capacity Assessment

The FitSpan Guarantee:

Improve your energy, strength & capacity - guaranteed.

If you follow your coaching plan for 6 months and don't see measurable improvement in energy levels, strength benchmarks and goal-specific capacity, Dr. Donovan will continue coaching at no additional cost until we do.

I built my career on the science of performance. If you do the work, adaptation is guaranteed.

Is FitSpan Coaching right for you?

This is for you if:

It is not for you if:

You're successful and know your physical capacity has slipped.

You want a 3 month physique transformation.

You want measurable progress, not vague wellness advice.

You mainly want to lose 10-15 pounds for an event.

Work, travel or family make a rigid plan fail.

You want a library of generic workouts.

You want to stay capable of hard, fun things for decades.

You don't want precision testing, tailored programming and one-on-one check-ins.

Start with this question: What do you want your body to be able to do?

Don't guess. Measure it.

After you apply, we schedule a short call to confirm fit.

Take the Capacity Assessment
Apply for January 2027 cohort now

Rooted in Physiology. Built for Durable Performance.