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Train Smarter.
Live Stronger.

20-minute sessions. Personalized by AI. Engineered for longevity. Stackable fitness and recovery programming—designed by data and our longevity fitness team—to optimize your performance and long-term health.

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/How it work

Simple system. Smarter results.

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Test your baseline

Test your baseline

Get real data on strength, cardio, metabolism, and biological age using non-invasive assessments.

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Build your program

Build your program

We use your results to create a personalized plan across strength, cardio, and recovery—adjusted in real time.

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Train with a Coach

Train with a Coach

Your longevity coach guides every session, stacking workouts and tracking your progress.

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Reassess + Optimize

Reassess + Optimize

Every 90 days, we retest and refine. Most members see measurable gains in just a few weeks.

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/What We Do

Services

  • Adaptive Strength Training

    Adaptive Strength Training

    with ARX and OxeFit

  • Cryo-Interval Training

    Cryo-Interval Training

    with Vasper

  • AI-Powered Ride

    AI-Powered Ride

    with Carol and LiveO₂

  • Cold Plunge

    Cold Plunge

    Elevate Recovery. Awaken Vitality.

  • Sauna

    Sauna

    Sweat with purpose. Recover with science.

  • Red Light Therapy

    Red Light Therapy

    Precision light for performance and longevity.

  • 3D Body Scan

    3D Body Scan

  • LongevityCheck

    LongevityCheck

  • Hormonal Health Assessment

    Hormonal Health Assessment

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/Testimonials

Reviews

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The Smart Fit Method App

Our app is the place to schedule your workouts, see your exact progress, get meal suggestions, and learn more about health and fitness.

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/FAQ’s

Your Questions.Answered.

Blog

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The Step by Step Guide to Contrast Therapy (Sauna & Cold Plunge)

Nov 17/25~4 min read

The Step by Step Guide to Contrast Therapy (Sauna & Cold Plunge)

Step-by-step protocol for sauna and cold plunge contrast therapy, including frequency, duration, and how to build a sustainable practice.

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Menopause Workout: Complete Exercise Guide for Women Over 50

Nov 06/25~4 min read

Menopause Workout: Complete Exercise Guide for Women Over 50

The Smart Fit Method offers personalized menopause workouts to build strength, boost metabolism, and improve bone and heart health for women over 50.

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The New Science of Strength Training After 65: Why Your Doctor's Advice May Be Outdated

Oct 30/25~7 min read

The New Science of Strength Training After 65: Why Your Doctor's Advice May Be Outdated

Learn the new science of strength training after 65. Discover how adaptive resistance builds muscle, boosts longevity, and prevents age-related decline.

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How to Train for Ski Season: A Science-Backed Guide to Skiing Stronger and Longer

Oct 21/25~8 min read

How to Train for Ski Season: A Science-Backed Guide to Skiing Stronger and Longer

Learn how to train for ski season with science-backed methods that build strength, improve endurance, and prevent injuries. Expert ski conditioning tips from a former top-ranked skier.

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Strength Training for Women Over 40: The Menopause Exercise Guide

Oct 14/25~9 min read

Strength Training for Women Over 40: The Menopause Exercise Guide

For Menopause Awareness Month, discover science-backed training for women 40+: lift heavy, track body composition & VO₂ max, and swap long cardio for smarter results.

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The Menopause Diet: What to Eat to Lose Belly Fat After 40

Oct 07/25~8 min read

The Menopause Diet: What to Eat to Lose Belly Fat After 40

During Menopause Awareness Month, discover why traditional dieting stops working for women over 40. Learn how to balance hormones, boost metabolism, and lose stubborn belly fat through better sleep, higher protein intake, strength training, and Smart Fit Method’s science-backed approach to nutrition and recovery.

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In the Press

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WebsiteThe Smart Fit Method coming to Utah on FOX13 News

Jan 09/25

The Smart Fit Method coming to Utah on FOX13 News

Live from The Smart Fit Method Salt Lake City, How AI Can Transform Your New Year’s Workouts, The Smart Fit Method Co-founders, Rob Darnbrough.

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WebsiteYorba Linda’s Simone LeCompte featured by CAROL Bikes (The Smart Ride 0₂)

Sep 30/23

Yorba Linda’s Simone LeCompte featured by CAROL Bikes (The Smart Ride 0₂)

It's not every day that a podcast changes your life. For rider Simone, it was the first step in a transformative journey with CAROL. Just 3 months into using her bike, she's now a proud rider and an advocate for others to hop on and experience the change themselves.

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WebsiteHow To Lose Weight Fast: 15 Expert-Backed Tips

Mar 28/23

How To Lose Weight Fast: 15 Expert-Backed Tips

People strive to lose weight for myriad reasons, and many fall into the fad diet trap promising real results fast. While there are certainly ways to accelerate your weight loss efforts, it’s important to understand that shedding pounds too quickly can actually backfire.Like so many parts of life, safe, successful and sustainable weight loss is more about the journey and less about a scale-based destination and rapidly approaching deadline. Read on for expert advice on the best ways to lose weight—and keep it off.

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WebsiteMeet Rob Darnbrough of The Smart Fit Method

Feb 06/23

Meet Rob Darnbrough of The Smart Fit Method

People strive to lose weight for myriad reasons, and many fall into the fad diet trap promising real results fast. While there are certainly ways to accelerate your weight loss efforts, it’s important to understand that shedding pounds too quickly can actually backfire.Like so many parts of life, safe, successful and sustainable weight loss is more about the journey and less about a scale-based destination and rapidly approaching deadline. Read on for expert advice on the best ways to lose weight—and keep it off.

Read more
WebsiteThe Smart Fit Method featured on FOX5 San Diego News

Jan 24/23

The Smart Fit Method featured on FOX5 San Diego News

Live from The Smart Fit Method La Jolla, Heather Lake interviews The Smart Fit Method Co-founders, father-son duo, Rob Darnbrough and Connor Darnbrough.

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WebsiteNew La Jolla fitness studio uses hybrid training program

Jan 18/23

New La Jolla fitness studio uses hybrid training program

Competitive athletes Rob and Connor Darnbrough had a fitness “epiphany,” which led them to pioneer a new hybrid training program called The Smart Fit Method, which they expanded recently into La Jolla. “We’ve developed and perfected an efficient and effective program at our original Cardiff studio, where we’ve helped countless clients achieve total body transformations while freeing up their time to do the other things they love,” said Rob Darnbrough, CEO and co-founder of The Smart Fit Method, which recently debuted at 7863 Girard Ave.

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