Making good use of a heart rate monitor belt with Decathlon Coach

The Heart Rate Monitor (HRM) belt quickly becomes an essential piece kit to make progress and get targeted results. DECATHLON COACH helps you get the benefit of using an HRM before and after each session. And then optimise your training to make progress.

The HRM belt is a piece of kit that quickly becomes essential to runner's or walker's looking to make progress. It enables you to monitor your heart rate, an essential indicator of your sport's activity. Our favourite accessory that makes you realize how powerful your engine is!


The muscles of your body need oxygen and energy to function. They must also eliminate toxins generated by their use. Your heart will take charge of this by quickly making blood flow throughout your body. That is why we have a cardiovascular system. In plain language, for your training and performance to progress, you must also exercise your heart.

Because just like the other muscles in your body, the heart needs exercise to be more effective and stronger. A good exercise, is subsequently also about exercising your heart so it works better. And that's why you must exercise it just as much at low heart rate frequencies (between 80 and 120 beats per minute on average) as at high heart rate frequencies (over 160 bpm on average). As a consequence, it will become stronger and more effective during sport, but also when you rest. So nothing but benefits!

But how do you know if you are properly exercising your heart? This is exactly what an HRM belt helps you monitor.


The HRM belt makes it easy to monitor your effort. It helps you to train better and really make progress. That's why Decathlon Coach bases its programmes on your HRM %. Your HRM % is at 0 when you are not making any effort and at 100 when your heart reaches its maximum heart rate frequency.

The heart rate is subsequently the best indicator to better manage your training and easily assess your level of fitness: adapt the right level of intensity depending on your goal, optimising fat burning, pacing effort when running, recovery, fatigue and giving advance warning of overtraining.

By the way, a mistake often made by beginners is to run too fast, and quickly tire themselves out. You must run or walk at a pace that your heart allows you to and train with exercises that accelerate little by little. The HRM belt subsequently helps you train properly and meet targets you set yourself. Plenty of reasons to equip yourself!


Using an HRM belt is very simple. It connects with GPS watches and Apple and Android smartphones via Buetooth Smart technology, wireless technology that is energy efficient.

DECATHLON COACH app is compatible with Geonaute Bluetooth Smart HRM belt, and Kalenji HRM armband, as well as with Suunto, Runtastic, Polar and even Sigma Heart Rate Monitors. Make sure to properly check compatibility whilst buying your HRM belt.

When you start your activity, moisten HRM belt sensor with a bit of water, place belt around your chest and press button to start it. Then, in the DECATHLON COACH app settings, connect to belt by following detailed instructions. DECATHLON COACH will then display your heart rate frequency throughout your activity.


After training, you can then find all your heart rate frequency data in the app and on the website. You will be able to analyse heart rate frequency trends based on your speed, elevation gain, course or even your tiredness. DECATHLON COACH will display trends and concordance of each element throughout training.

DECATHLON COACH also indicates in what heart rate zones you ran or walked. Check you are training properly in the zone adapted to your goals and recommended in our training programmes. Make it easier to progress and subsequently prevent tiredness linked to training unsuitable to your capabilities and the goals' you've set yourself. It's a matter of the heart!

You will have quickly grasped that the DECATHLON COACH app and the heart rate monitor belt will quickly become essential to making training sessions more effective. You just have to download DECATHLON COACH app for free to take advantage of this.

Team Decathlon Coach