CGMs are a fantastic tool for giving you more insight into your blood glucose levels, and this is incredibly useful when exercising.

Reviewing your data before, during and after exercising will give you an idea about the impact of a certain type of activity on your blood glucose levels and can help you prepare better in the future, i.e. if you can see that you are having delayed low blood glucose levels after exercising, then you could try eating some carbohydrate afterwards to prevent them from getting low.

The trend arrows will indicate whether your blood glucose levels are staying level or going up or down, so you can see whether you need to take action.

Practical issues

If you’re exercising, you’ll likely be sweating, especially if you are doing high-intensity activities. This may affect sensor adhesion, so if it does, you could consider covering your sensor with patches or a medical dressing.

Another issue some people experience is accidentally knocking or bumping their sensor while exercising. If this is something you’ve experienced, there are protective bands you can buy that are designed to protect the sensor from being knocked.