Get started GRASPORING

Using GRASPOR for the first time

Basic info First use

Below we will cover how to get ready to use GRASPOR for the first time. How do I wear it?  what’s this about an app? And how do i record?


First use

Watch the video on how to use GRASPOR for the first time, or read more below.

You will learn:

1. How to wear GRASPOR correctly

2. How to connect GRASPOR to the app

3. How to see your battery level and firmware version

4. How to start, end and find your recording

How to wear GRASPOR

1. Prepare the sleeve

Wet the electrodes with a wet cloth or a splash of water.

The electrodes provide better data quality when they are wet due to an increased ability to conduct the electric impulses.

2. Secure the sensor in the sleeve

The sensor is clicked into place from the inside of the dock in the sleeve. There should be a clear *click* noise from the dock.

It is important that you ensure it has clicked into place correctly, to ensure data quality and stability.

3. Pull your sleeve up your right leg

The sleeve should be placed halfway up your thigh, between your knee and hip, and the sensor should be facing slightly right.


Position your sleeve correctly

Positioning the sleeve is important to ensure data quality and stability. But ensuring that the position is the same each time is just as important, as this increases data comparability. Therefore, having a standard for sleeve placement is vital.

The triangular cut in the laminate indicates the point that should stay at the halfway point.

The sleeve should be placed halfway up your thigh, between your knee and hip, and the sensor should be facing slightly right.

To ensure the correct position, the edge of the laminate layer on the sleeve should follow a straight line down the front of your thigh.

Connect your sensor to the app

If you dont have the app already – scan the QR code with your phone or click the link below it.

Once you have  the app, follow the steps below to connect your device.

1. Turn on the device, by pressing the button once and wait for the LED to begin pulsing blue.

2. Open the GRASPOR app and press the circle with the GRASPOR logo and Bluetooth logo.

3. Find and select the device on the list. The device ID is found on the packaging.

4. When the GRASPOR logo lights up in blue, the device is connected and you can now press “Ready?” to begin the Muscle Oxygen calibration process. NB: It is important that you stand still or sit during the calibration process.

Your first recording

1. Connect your device to the app

When you have connected your device to the app, and you see the button labelled “Ready?” your device is connected and ready to calibrate. Don’t press the button yet.

2. Calibrate your Muscle Oxygen

Press the button labelled “Ready?” and wait for the calibration process to finish.

It is important that you remain either standing or sitting still until the calibration is finished.

Once the calibration is finished, press the button labelled “Start recording”.

3. Warm-up

Complete your on-bike warm-up protocol. You can find out more about warming up with GRASPOR in the next step.

4. Calibrate your Muscle Activation

The calibration should be done with both feet clicked in, and seated on the saddle. Doing this at speeds between 5-15 km/h is recommended as you won’t have to focus on pushing on the pedals to avoid falling.

Turn your pedals so your right foot is at 3 o’clock (pointing forward), and push your foot as hard as you can forwards for a few seconds. Next, turn your pedals so your right foot is at 9 o’clock (pointing backwards), and pull your foot backwards as hard as you can for a few seconds.

Repeat this process as many times as you can in the 30 seconds the calibration takes.
You begin the Muscle Activation calibration by pressing the calibrate button.

5. Finish your recording

To finish your recording you press the pause icon, then you press the red stop icon. Your recording is now finished.

After your recording has been processed and is saved, you are transferred to the summary page where you can get an overview of your recording. You can also explore deeper by tapping on the graph, and diving into the data in the full-screen graph.

Understand your data

When you record a workout with GRASPOR and have calibrated your Muscle Activation data, GRASPOR will collect 2 data sets for you. The data sets have different applicabilities but are equally important for athletic improvement.

Muscle Oxygen

Muscle Oxygen is your primary performance marker. Muscle Oxygen is a direct measure of how hard you are pushing your body by looking at the oxygen levels in your muscles, presented to you in real-time. By looking at Muscle Oxygen during your training, you can easily make sure that you don’t train too hard or too easy.

If you have zone 3 intervals at 54% Muscle Oxygen, and you usually produce 260 watts during these intervals the actual stress on your body could vary from day to day. With Muscle Oxygen, you can trust that 54% Muscle Oxygen is the same each day. So if your zone 3 intervals are around 54%, you simply need to adjust your power so your Muscle Oxygen is within this range.
This means that the power could be 260 one day, 250 the next day or 270 after a rest day. 

Muscle Activation

Muscle Activation is the second marker and tells you how much you activate your quadriceps and hamstrings. The data is presented as a percentage of your maximal activation, which is set through the calibration process.

Over the course of a ride, you can track the development of your Muscle Activation on your hamstrings and quadriceps. If you lack muscular strength, you will experience an increase in Muscle Activation even if you keep the same intensity. This is due to the number of muscle fibres being activated increases as fatigue sets in. 

Now that you have gotten an understanding of how GRASPOR works, and how to use our features, let’s dive into how to use GRASPOR in practice. 

Over the next steps we will take you through warming up and threshold testing with GRASPOR; Why it is important, and how to do it properly.