Summit and Wasatch County residents tend to build their time around powder days and long trail miles. So, aging gracefully means staying in the game for skiing, golfing, and mountain biking. Park City residents and father-and-son co-founders of The Smart Fit Method, Rob and Connor Darnbrough, discuss their vision of data-driven fitness, quality health span, and why strength might be the most important investment people can make.
A former Canadian National Team cyclist, Rob Darnbrough has spent a lifetime testing the limits of human performance. Shaped by decades of elite endurance sport, he built his identity around strength, resilience, and forward motion. At 49 and entering semi-retirement, a life-altering diagnosis forced him to redefine everything he thought he knew about fitness. Advised to avoid lifting more than 30 pounds and to limit even moderate exertion, Rob faced the prospect of trading alpine pursuits and mountain miles for stillness.
Instead, he chose reinvention. Through advanced recovery modalities and data-driven conditioning, Rob methodically rebuilt his health, safely restoring his cardiovascular fitness to enable him to return to the ski slopes and bike trails he loves. His personal transformation became the philosophical cornerstone of The Smart Fit Method: training that adapts to the individual, prioritizes measurable longevity, and proves that performance and aging gracefully are not mutually exclusive.
Raised in Whistler, British Columbia, Connor Darnbrough, Rob’s son, grew up immersed in mountain culture and competitive sport. A high-level freestyle skier, he developed an early fascination with biomechanics, performance metrics, and the science behind elite training. But it was witnessing his father’s medical crisis that reframed his understanding of fitness. It made him realize that training smarter, not just harder, can completely transform someone’s future.
Connor recognized that the future of wellness should be built on diagnostics over guesswork, personalization over programs, and measurable outcomes over trends. With that philosophy, he co-founded The Smart Fit Method with his dad, blending advanced assessment technology with highly individualized coaching to optimize strength, VO₂ max, metabolic health, and recovery.
The company has expanded to multiple locations, including the newest in Park City, that features a full suite of Smart Fit’s proprietary technologies, including ARX adaptive resistance training, Vasper conditioning, cold plunges, infrared saunas, and red light therapy. Those tools support optimal performance, muscle recovery, and long-term wellness to everyone from aging athletes to high-performing executives seeking efficient, data-backed longevity strategies. Connor’s mission is simple: help clients extend their best years. With sport-specific programs designed for Utah’s active community, the Darnbroughs also facilitate recovery protocols for injury prevention and rehabilitation.
“We look at measurable markers such as VO₂ max, strength-to-weight ratio, and metabolic health and ask: ‘Will this person be able to ski at 70? Hike at 80? Stay independent at 90?’ That’s the goal.”
Park City Home (PCH): What are the biggest physical challenges people face as they age?
Connor Darnbrough (CD): Loss of strength and cardiovascular fitness. VO₂ max—your body’s ability to use oxygen—declines about 5 to 10% per decade if you don’t train it. Strength drops, too, and that’s what keeps you independent.
PCH: What does “health span” mean to you and how is it different from just living longer?
CD: We’re not just focused on lifespan, we’re focused on health span—helping people stay strong, active, and healthy for as long as possible. Everyone says they want to live longer. But what they really mean is they want more good years. No one wants to live to 120 if they can’t hike, travel, or get up out of a chair without help. Health span is about improving your quality of life as you age.
PCH: Outside of structured training, what habits matter most for aging well?
CD: I break it into four pillars: exercise, recovery, nutrition, and sleep. They all have to support each other.
For exercise, most people need a balance of lower-intensity “Zone 2” training—think hiking, skiing, walking the dog—for three to six hours a week. Then layer in one or two higher-intensity strength sessions and one or two higher-intensity cardio sessions. The key is consistency and smart progression.
I think of strength as a physical retirement account. You’re investing now so you can draw from it later. If you slip on stairs at 75, you want the strength to catch yourself.
PCH: How do you define recovery?
What does it look like?
CD: Recovery should match your workload. If you’re increasing strength training, you might need to add sauna, cold exposure, or other modalities to help your body adapt. Recovery should be strategic.
PCH: Let’s talk nutrition. What are people getting wrong?
CD: Most people under-eat protein. Protein is what your body uses to repair and rebuild. Many adults should aim for roughly 0.8 to 1.2 grams per pound of body weight, depending on their goals.
Carbs and fats are fuel and timing matters. Many people benefit from consuming more carbohydrates earlier in the day and scaling back at night. And while whole food should be the priority, supplementation can help bridge gaps realistically.
PCH: Sleep seems foundational to everything. What’s your advice?
CD: Sleep is when cortisol drops and growth hormone rises. That hormonal shift is essential for recovery. Six to eight hours is the general recommendation, but most adults function better closer to seven or eight.
I like a “3-2-1” rule: stop eating three hours before bed, stop stressful work two hours before, and reduce blue light one hour before. Use warm lighting in the evening. Protect deep and REM sleep. Small changes add up dramatically over time.
PCH: How does The Smart Fit Method work?
CD: Park City is an incredibly active community. Locals ski, bike, hike, and stay outdoors year-round. The Smart Fit Method experience was built for exactly that lifestyle and blends science and hospitality. Sessions are semi-private, guided by expert trainers who know each member’s goals, preferences, and limitations.
We start every client with an in-depth assessment. We track over 150 biomarkers—strength, metabolic rate, body composition, posture, VO₂ max. We’re training based on diagnostics. A 45-year-old former athlete and an active 75-year-old shouldn’t be doing the same program. We help people perform better, recover faster, and reduce the risk of injury so they can keep doing what they love.
PCH: What kind of results are you seeing?
CD: Across all our studios, the average client is 53 years old. Over one year, we see an average 70% improvement in strength-to-weight ratio. In the first six months, we see about a 19% increase in VO₂ max.
When you combine those improvements, mortality risk can drop significantly—often 30 to 50% depending on the individual. But beyond the stats, it’s about real life: putting luggage in the overhead bin, skiing longer, keeping up with friends on a hike.
PCH: Looking ahead, how do you see aging and fitness evolving in the next five years?
CD: Data is going to drive decision-making more than ever. People want a return on their time. But technology alone isn’t enough. You need a human being to interpret the data and hold you accountable.
The future of aging well is this blend: smart diagnostics, efficient programming, and real human connection. Because at the end of the day, it’s not just about numbers. It’s about living fully—on your terms—for as long as possible.
