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Endurance PTC
Performance Coaching
Bike Fitting
eCycling
Gym
Personal Trainers
Nutrition Support
About EPTC
Our Team
Testimonials
Exercise & Physiological Testing
Fitness Assessment
Performance Assessment
Body Composition Analysis
Resting Metabolic Rate Testing
Field, Remote & Group Testing
Maximal Fat Burning Assessment
Running Economy Testing
Sweat Sodium Testing
EPTC REVIEW
Contact Us
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Performance Coaching
Bike Fitting
eCycling
Gym
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Folder: ABOUT
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About EPTC
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Exercise & Physiological Testing
Fitness Assessment
Performance Assessment
Body Composition Analysis
Resting Metabolic Rate Testing
Field, Remote & Group Testing
Maximal Fat Burning Assessment
Running Economy Testing
Sweat Sodium Testing
EPTC REVIEW
Contact Us

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View fullsize Lab tests are great. Real roads are better. For field lactate testing, we load up Tim’s van, head to the bike path, and test you where you actually run. Flat, fast, uninterrupted, and familiar. No treadmill belt, no staring at a wall, no guess
View fullsize Huge news worth celebrating! 🎉 Tim was named the #1 cycling coach in the U.S. for 2025 by INSCYD (AND #2 running coach!), recognized for results across VO₂max, MLSS, FatMax, and LT1 development. That level of recognition comes from years of dialing
View fullsize Meet Dr. Namrita Brooke, PhD, RD @namritabrooke — EPTC’s new nutrition expert and a leading endurance coach with over 15 years of experience helping athletes fuel smarter, train stronger, and perform at their best. Namrita holds a PhD in
View fullsize Quitter’s Day shows up every year right about now. The gym starts getting quieter as people start falling off from their New Year goals. The motivation fades, life gets busy, and goals start to feel optional. That’s normal. What matters
View fullsize New year, new goals. And the right tools to actually reach them. It's hard to get better if you're just guessing every session. The keys to improvement?Understanding your body, training with purpose, and having support around you. Lactate testing to

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Location

8 Madrona St.
Mill Valley, CA 94941

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