See how our Muscle Oxygen Sensors help you:
In sports, we check how fast we are, how much we do, and how our heart beats, but we forget about our muscles—the part we can train the most! Our training helps muscles use more oxygen.
See how our Muscle Oxygen Sensors can help you be your best as a:
OUR SYSTEM
Train.Red FYER
Our smartest and smallest Muscle Oxygen Sensor
Train.Red APP 2.0
Get yours now on Google Android or Apple iOS
train.red 3rd party
Our system is integration in many other ecosystems. Click here to learn more
Train smarter with Train.Red! Work hard and rest at the right time using real-time insights from your muscles. Endurance is all about using your energy wisely—let your muscles guide you through easy sessions and tough workouts
and muscle strength with Train.Red's Muscle States. Whether you're training for strength endurance, hypertrophy or maximum strength. Translate your activity into 5 targeted muscle states in real-time, enabling precise pacing and optimized muscle targeting. Let your muscle tell you when to start the next set!
Perform exercise tests directly from the Train.Red app and monitor your or your clients' evolution over time. Identify physiological limiters, evaluate the effect of training, define training intensities and develop pacing strategies.
Train smarter with Train.Red! Work hard and rest at the right time using real-time insights from your muscles. Endurance is all about using your energy wisely—let your muscles guide you through easy sessions and tough workouts
and muscle strength with Train.Red's Muscle States. Whether you're training for strength endurance, hypertrophy or maximum strength. Translate your activity into 5 targeted muscle states in real-time, enabling precise pacing and optimized muscle targeting. Let your muscle tell you when to start the next set!
Perform exercise tests directly from the Train.Red app and monitor your or your clients' evolution over time. Identify physiological limiters, evaluate the effect of training, define training intensities and develop pacing strategies.
Gommaar (pHD) from @wod_science
More than ten years ago, during my PhD at KU Leuven, I was first introduced to NIRS. At times they were clumsy and extremely expensive devices, which we used to test the effects of simulated altitude on people.
Introducing Train.Red changed everything. They introduced an extremely easy-to-use, simple and reliable device that is impossible to apply to multiple muscles.
I consider NIRS a more advanced alternative to the heart rate monitor, comparable to a portable exercise laboratory. Finally it is possible to monitor participants live and in a non-invasive manner. We can directly monitor someones training and progress over weeks and months.
The Train.Red FYER and the Train.Red PLUS Muscle Oxygen Sensors are indispensable tools for every coach and athlete who wants to take their training regime a step further.
more EXPERTS IN THE FIELD
Roman Fomin
PhD Director of Sport Science UFC
We (UFC) are taking performance improvement to the next level, using real-time energy systems assessment on both systemic and peripheral levels.
Sarah Thivent
Performance expert
As a performance expert, I needed to measure muscle oxygen saturation (SMO2) during the cycle ergometer tests of my patients. I then discovered Train.Red, I use it every week and it meets my needs very well. It's a simple tool that provides very important information if one is aiming for improvement.
Christian Pirri
Coach & athlete
I use Train Red regularly, on the one hand to make pause control between intervals more efficient but also to control increased SMO2 saturation in the muscle during aerobic training sessions
TRAIN.RED COMPATIBILITY
Want to integrate Train.Red into your already existing routine? We understand!
NEVER STOP LEARNING
our tech
Decades of science resulting in 20 grams of tech, allowing you to measure muscle oxygen.
Courses
"Data will talk to you, if you're willing to listen". Listen and learn how to use muscle oxygen data.
manual
Learn how to use the hardware, the software / app or how sync with 3rd party platforms.
connect your sensor to the train.red app for all features
APP MANUAL
Muscle Oxygen Sensors
FREQUENTLY ASKED QUESTIONS
Do you have some more questions? Check the FAQ, or visit our support page to find out more.
What sensor is best for me?
Though decision to make. But no worries, you can compare our sensors on this page to ensure you make the right choice!
Do you ship internationally?
Yes, we do! We ship from the Netherlands, shipping cost depends on your location. We offer free shipping within Europe*.
For businesses and all other countries, costs are calculated automatically on the website.
How long will it take to get my order?
It depends on where you are. Orders processed here will take a few business days to arrive. Overseas deliveries can take anywhere from 2-14 days. Delivery details will be provided in your confirmation email.
Why does the app crash after calibration?
If the app breaks or crashes after the 10s calibration time, it may be due to GPS not being enabled on your phone. The app requires GPS access to function properly.
Solution:
- Ensure that GPS is enabled on your phone before starting a session.
- When the app prompts you for location permissions, make sure to grant access.
- If the issue persists, manually enable GPS for the train.red app in your phone's settings:
Once GPS is enabled, the app should function normally. If problems continue, please contact our support team.
Why can't connect my sensor via Bluetooth?
If you've followed the recommended troubleshooting steps and your sensor still won't connect, check if other Bluetooth devices are interfering with the connection.
One common issue occurs with smartwatches. If a smartwatch is charging, it may automatically keep the sensor connected, even in standby mode, preventing your phone from establishing a connection.
Solution:
- Try disconnecting the charging cable from your smartwatch.
- If the issue persists, enable Airplane Mode on the smartwatch. This will prevent it from interfering with the Bluetooth connection.
- Once the smartwatch is in Airplane Mode, try reconnecting your sensor to the phone.
This should resolve the issue and allow your sensor to connect properly. If you continue to experience problems, please contact our support team.