Metabolic Testing & Sweat Testing
Take your endurance training seriously with more precision, no guesswork. Each person’s physiological capabilities, metabolisms and sweat are highly individual, get to know yours.
Purpose for Performance Testing
Every athlete responds to training differently. Two people can run the same pace, hit the same mileage, and still have completely different physiological demands.
Metabolic and sweat testing help us understand what is happening beneath the surface: how efficiently you use oxygen, where your intensity zones sit, how much fluid and sodium you lose, and what your body needs to sustain effort. This allows us to build a more precise training and fueling strategy for your actual body, not a generic runner profile.
For endurance athletes and recreational runners alike, better data leads to better decisions, less chances of injury, and better recovery.
INSCYD Metabolic Testing
INSCYD metabolic testing gives runners a detailed look at how their body produces, uses, and sustains energy at different intensities.
Instead of relying on generic pace zones or estimated fitness scores, INSCYD helps identify your individual aerobic capacity, anaerobic contribution, threshold pace, fat and carbohydrate use, and training zones.
For endurance athletes, this matters because better training starts with knowing what system needs development. Some athletes need more aerobic efficiency. Others need better threshold durability, improved lactate clearance, or a more precise fueling strategy. Testing gives us the data to make those decisions clearly.
Whether you are preparing for a race or simply trying to run stronger, this test helps turn effort into direction: smarter pacing, more specific workouts, and a clearer understanding of what your body needs to improve.
Now available two ways: in-person at Mohawk/Echo Park, or 100% virtual — run or ride the test on your own equipment, wherever you train.
Sweat Testing
Every athlete loses fluid and sodium at a different rate — and most people are training and racing without ever knowing their own number. We test it directly, and while you're actually working, not sitting in a chair. That's the difference between a guess and real data.
During exercise, your body loses water and sodium in amounts that vary dramatically from person to person — some athletes lose several times more than others in the exact same conditions. Sweat testing measures those losses precisely, giving us a clear picture of what your body actually needs to stay hydrated, hold performance, and avoid unnecessary breakdown when it matters most.
For endurance athletes, this isn't a nice-to-have. Poor hydration strategy shows up as early fatigue, cramping, GI distress, reduced heat tolerance, and performance that falls apart late in a race for no obvious reason. Instead of guessing how much water or sodium you need, we build your plan off your actual sweat profile — no off-the-shelf formula, no one-size-fits-all electrolyte mix.
Whether you're training for a marathon, an ultra, a triathlon, or just trying to feel better and perform better day to day, this gives us data we can use immediately: how much you sweat, how much sodium you lose, and how to replace it with real intention instead of habit.
And it's not just for race day. A hard sauna session pulls sodium out of your system the same way a hard training block does — it's a real heat load, whether you clock it that way or not. Add a sweat test to your regular sauna visit and find out exactly what your heat sessions are asking of your body, so you're refilling with a plan instead of just drinking water and hoping.
You get a number and a plan. Nothing gets sold to you along the way.
Better data, better decisions, fewer injuries, faster recovery. Shop tests below and get to know your own physiology
Purchase
The same INSCYD metabolic profile — done wherever you train. No studio visit required. Great for athletes outside LA or anyone who’d rather test in their normal training environment, on their own bike, treadmill, or track.
What it consists of:
• The same 4-stage protocol as the in-studio test (two 20-second max efforts, one 3-minute effort, one 6-minute effort), self-administered using your own power meter, GPS running watch, or trainer.
• Clear, step-by-step pacing/power instructions sent before your test so you know exactly what to do and when.
• A 1:1 virtual consultation to review your results — same as the in-studio version.
What you need:
• A bike with power meter, or a GPS running watch/treadmill with pace data.
• A safe stretch of road, track, or trail (or trainer) to complete near-maximal short efforts. What you get
• A full written metabolic profile report: VO2max, VLaMax, lactate threshold, fat/carb utilization, and personalized training zones.
• The same actionable data as the in-studio test — just captured on your own turf.
After checkout: our team will reach out ASAP to get your test scheduled at a time that works for you.
A full metabolic profile of your aerobic and anaerobic systems, done at Mohawk or local track or course with a coach guiding you throughout the protocol.
What it consists of:
• A structured 4-stage effort test — two 20-second max efforts, one 3-minute effort, and one 6-minute effort — performed on studio equipment (Cycle: Zwift Trainer) or Run Test at a local track/course, both under coach supervision.
• Roughly 45–60 minutes total, including warm-up.
• Your effort data is processed through INSCYD’s software to map your VO2max, VLaMax (lactate production rate), lactate threshold, and fat/carbohydrate utilization across intensities.
What you get:
• A full written metabolic profile report.
• Personalized training zones built from your actual physiology, not age-based formulas or estimated FTP.
• A results walkthrough so you know exactly what to do with the numbers.
After checkout: our team will reach out ASAP to get your test scheduled at a time that works for you.
Sweat Test
Real data on what your body loses when you sweat — tested while you're actually working, not sitting still.
What's included:
Sweat sodium sample collected during your session — reflects real effort, not a resting guess
Results read and explained in person, same visit
A personalized hydration and electrolyte plan built around your actual numbers
No product upsell — you get a plan, not a pitch
Optional: add this to any sauna visit to see what your heat sessions are costing you
Session length: ~45–60 minutes
Best for: Runners, triathletes, endurance athletes, and anyone dealing with cramping, fatigue, or inconsistent performance who wants a real answer instead of a guess
What to Expect:
Before you start
A quick check-in — your training, your goals, and anything worth knowing before we begin. No fasting, no prep required. Just show up ready to sweat like normal.
During your session
We place a small patch to collect a sample while you train, run, or sit in the sauna — whatever brought you in that day. No needles, no blood draw, nothing invasive. You just keep doing what you came here to do.
Getting your results
Once we have your sample, we run it right there — you're not waiting days for a report to show up in your inbox. Results come back the same visit.
Your consultation
We walk you through your numbers in plain language — what they mean, what's normal for you, and what to actually do with them. This is where the real value is: not the number itself, but the plan built around it.
What you leave with
A specific electrolyte strategy — built on your data, not a generic formula off the shelf.
After checkout: our team will reach out ASAP to get your test scheduled at a time that works for you.