GRASPOR provides you with personalized data, directly from your muscles, that can help you make the right choices in your training


What does GRASPOR do?

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The unit

GRASPOR consists of the Muscle Oxygen sensor, and the sleeve. The sensor is the powerhouse of the unit unit, as this is responsible for the Muscle Oxygen data collection, and data transmission to the app.

GRASPOR measures your Muscle Oxygen through infrared lighting. The Muscle Activation is collected via EMG electrodes placed on the inside of the sleeve.

Both data sets are recorded by your Smartphone via the GRASPOR app.

12-hour battery life


 IOS and Android app

Washable sleeve

The long battery life ensures that all your hard-earned data is recorded and saved. Even those long 6-8 hour training rides are logged safely, and there is even a little room for forgetting to change it afterwards. 

The IPX7 waterproofness allows you to wear the device in all kinds of weather, even rain and snow – so there is no excuse to not go out training. 

We use an app to capture and record your data. The app has an easy overview of your data on the recording screen, but allows you to dive deep into the data when your workout is finished.

The sleeve is hand-washable in lukewarm water. It is important to keep the sleeve clean to increase data quality and reliability. We recommend that you rinse the sleeve after each training ride.

The app





Get a quick overview of your Muscle Oxygen and Muscle Activation in the live view. Here you can track trends in your Muscle Oxygen and easily see how hard you’re pushing your body.

Find your workout summary, and dive into your data with detailed information about your laps, average and minimum and maximum values, as well as an overview of your Muscle Oxygen throughout the workout.

From the workout summary, you can dive even deeper into the data you have collected. In the full-screen graph, you gain access to detailed viewing of Muscle Oxygen, Muscle Activation, oxygenated haemoglobin, deoxygenated haemoglobin and even heart rate if you connect your own heart rate monitor.

Create an account and access your workout from any smartphone with the GRASPOR app installed. You can also save all your workouts in the workout library, so you can re-visit a specific workout at any time.

Worn by the best

Some of the best riders in the world are already using GRASPOR to unlock their full potential.

I have chosen to use GRASPOR as a part of my journey back from a concussion

Christina Siggaard
Women’s World Tour
Lotto Soudal Ladies

GRASPOR is a revolutionary tool that i hope can help med on my journey.

Mathias Norsgaard
World Tour Rider
Team Moviestar

GRASPOR gives me the insight that can help me find the last gains to achieve my goals.

Pernille Mathiesen
World Tour Rider
Team Jumbo Visma