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Meet Our Team
Founder & Owner
Aaron Castonguay, PT, DPT, OCS, CSCS
Medical Bike Fitting, Running Gait Analysis, Physical Therapy, Personal Training, Strength Coaching, Longevity
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Doctor of Physical Therapy | Ithaca College, NY
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Orthopedic Board Certified Specialist
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Certified Strength and Conditioning Specialist
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Certified in Applied Function Science
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Level II RETUL & Professional ICE Bike Fitter
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Certified in Functional Dry Needling
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NOLS Rocky Mountain Alumni
Kurt Dallow MD, FACSM
Biography of Kurt Dallow MD, Fellow of the American College of Sports Medicine
Kurt Dallow MD, FACSM has extensive experience in working with endurance athletes of all ages. He has served as team physician for collegiate sports at a Division 1 Colorado school. WorkedHe has been a triathlon coach through USA triathlon for 10 years. He believes in the science of sport and is a fellow of the American College of Sports Medicine. His 40+ year medical career as a board certified family doctor, and later a primary care sports medicine physician for a large orthopedic group has given him valuable experience.
When not coaching Dr Dallow is competing in endurance running, mountain biking, triathlons and winter sports. He is a water safety instructor (WSI) affiliated with the Silverthorne Recreation Center, where he runs triathlon camps and teaches swimming.
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Physiologist and Endurance Coach
Duncan Koehn, MS
VO2 Testing, Endurance Coaching, Bike Fits, and Running Analysis
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Masters in High Altitude Exercise Physiologist | Western CO University
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Bachelors in Exercise Physiology from CO Mesa University
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Certified Endurance Athlete Coach
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Specializing in cross-country skiing, running and cycling.
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Team Summit & Summit High School Team Coach for XC Ski and MTB
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Registered Dietitian and Personal Trainer
Cindy Dallow, Phd, RD
Accepting new patients for Dietary Consult, Personal Training and Wellness Coaching!
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Registered Dietitian Nutritionist
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PhD in nutrition | CO State University
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Master Health and Wellness Coach
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Certified Intuitive Eating Counselor
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6-time Ironman finisher
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Wife and Mother
Maddie Short, BS
Admin Assistant and Wilderness Specialist
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Avid trail runner and backcountry skier with a deep love for all things in the mountains
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Educator dedicated to making the outdoors more inclusive through place-based education
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AIARE-certified avalanche educator
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Currently pursuing a career in Physical Therapy
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Sourdough bread enthusiast
Maddie grew up in rural Pennsylvania, finding early inspiration in the fields and forests surrounding her family’s farm. After graduating from the University of Vermont with a B.A. in Environmental Studies and Anthropology, she headed west in search of bigger, snowier mountains. Since then, Madeline has worked in a variety of roles in environmental education, teaching throughout the American West and Chilean Patagonia, with a particular love for snow and long days outside. When she’s not at work, Madeline enjoys trail running, alpine naps, and eating cheese.
SUMMIT SPORTS LAB
The science of moving well. The art of living fully. The discipline to do it everyday.
At Summit Sports Lab, we believe the human body is built for adventure—for skiing deep powder, climbing steep passes, riding long mountain roads, and exploring life with curiosity and grit.
Our theology is simple:
Live the best you can, for as long as you can, with as much capacity as possible.
Everything we do
flows from 3 pillars.
1. Performance — Build the Engine
Performance isn’t just for elite athletes; it’s for anyone who wants to experience life with power, confidence, and capability.
We use science—biomechanics, metabolic testing, strength diagnostics—to help you move better, push further, and show up strong for the life you want to lead.
Because the mountains don’t care who you are. They reward those who prepare.
2. Longevity — Preserve the Capacity
Longevity is not just lifespan—it’s adventure span.
We focus on metabolic health, strength standards, joint integrity, mobility, and daily practices that allow you to thrive at 40, 60, 80, 100 and beyond.
A life of adventure requires durability.
And durability is trained.
3. Recovery — Rebuild the Foundation
Life has cycles: stress, growth, injury, adaptation.
Recovery is how you respect those cycles. Whether you’re healing from injury, rebuilding after a setback, or preparing for another season, our DPT-led rehab restores strength, movement, and confidence.
We don’t just get you out of pain—we get you back to the life you love.