Real results from real people.
Jordan
Hyrox athlete
“I took the test because I was never sure about my Hyrox running pace. I either went out too fast or had too much left in the tank. The results showed me exactly where my thresholds sat and gave me a precise pace to target.”
Tom
Training for a half marathon
“I thought I was training hard enough but going nowhere. The test showed me I was spending almost all my time in the wrong zones. I got faster within weeks of proper training. Thanks”
Harleen
Fitness Enthusiast
“I nearly didn't book because I thought this was only for elite athletes. The earlobe prick was nothing and I got my report in two days. Now I run three times a week instead of four but I'm improving faster!”
Jake
Hyrox athlete
“Found out my engine was more developed than I thought so I had the confidence to push myself on the runs and cardio stations”
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Charlotte
Completed first marathon
“I work long hours and can only train a few times a week. Learning about my body was vital in making sure every session counted.”
Amy
Very fast runner!
“I had been stuck at a plateau for a long time. This helped me break through and achieve my best ever time of 1hr30 for the half marathon.”
Jordan
Hyrox athlete
“I took the test because I was never sure about my Hyrox running pace. I either went out too fast or had too much left in the tank. The results showed me exactly where my thresholds sat and gave me a precise pace to target.”
Tom
Training for a half marathon
“I thought I was training hard enough but going nowhere. The test showed me I was spending almost all my time in the wrong zones. I got faster within weeks of proper training. Thanks”
Harleen
Fitness Enthusiast
“I nearly didn't book because I thought this was only for elite athletes. The earlobe prick was nothing and I got my report in two days. Now I run three times a week instead of four but I'm improving faster!”
Jake
Hyrox athlete
“Found out my engine was more developed than I thought so I had the confidence to push myself on the runs and cardio stations”
Charlotte
Completed first marathon
“I work long hours and can only train a few times a week. Learning about my body was vital in making sure every session counted.”
Amy
Very fast runner!
“I had been stuck at a plateau for a long time. This helped me break through and achieve my best ever time of 1hr30 for the half marathon.”
What you get: your body's data, made simple and actionable.
Professional athletes don't guess. They test, train precisely and keep improving. That same ability is now available to you.
Your threshold profile
Tap or hover any zone, line, or label to learn what it means.
Pinpoint your strengths and weaknesses
See exactly how developed your aerobic fitness is and understand where to focus next..
Train at the right intensity
Learn your actual training zones calculated from your actual physiology, no estimates. Every session becomes more effective, progress is faster and nothing is wasted.
Know your race paces
Understand precisely what pace or intensity you can sustain and for how long. No more blowing up mid-race or leaving too much in the tank.
Retest and see real progress
Come back after a training block and see exactly how your body has improved
Three simple steps
Simple, quick and done at your gym!
Run on a treadmill
Start out at a comfortable pace. We gradually increase the speed every few minutes, building up to a hard effort.
Lactate testing
At each increase, we take a tiny drop of blood from your earlobe. It's a quick pinprick that most people barely notice. We do this roughly 5-10 times in total.
Get your results
You will get your full report within 72hrs. This will include insights about your personal lactate curve, training zones and clear guidance on how to use them to maximum effect.
The whole process takes about 45 minutes. You can train as normal afterwards.
Built for anyone who wants to train seriously
If you train with purpose and want to get better, these tests are for you.
Hyrox Athletes
Don't guess your race pace! Get the numbers that tell you exactly where to push and where to hold back!
Runners
Go beyond heart rate. Understand exactly how your body performs, which zones will build your engine and what specifically helps YOU get faster.
Anyone wanting to improve!
Time is limited, life is busy. Make sure that when you do train, every session is pulling you toward your goals as efficiently as possible.
Doctors in your corner. Science on your side.
We saw that the testing elite athletes rely on to improve and strategise was out of reach for most people, so we built FitnessCheck to change that.
Dr Simran Baker-Singh
Anaesthetic & Intensive Care Doctor
Runs most days with Tofu the Cockapoo. Competes in Hyrox with his wife and Canicross with his dog.
Dr Luke Nixon
Anaesthetic & Emergency Medicine Doctor, Sports Scientist, Former elite level swimmer
Holds a Sports Science degree on top of Medicine and regularly competes in Hyrox, CrossFit Games, Triathlon and Ironman.
Tofu the Cockapoo
Chief Motivation Officer
athlete with a above 200 (but refuses to comply with formal testing). Motivates the team every day.
Simple and transparent
No hidden fees.
Lactate Threshold Test
Book now to secure this price
Results guarantee
We'll identify your training zones and thresholds from every test, or your money back.