Hi George. Training Load is a measurement of the total amount of exertion experienced by your body. Since the Frontier X can be used for different types of activities, training load can give you an insight into how your total exertion varies from one activity to the next.

It is calculated using breathing rate, and the time spent in each…Read More

Hi Gerry,

Lab-based exercise stress tests are stopped when ECG changes show that your Cardiac Strain crosses 0.2 mV. We suggest you set your Cardiac Strain alert to 0.18 mV to get a double buzz when you’re getting close to a zone that may be unsafe for your heart.

Every individual has unique zones depending on age, fitness and medical conditions. Follow these steps to personalise your HR zones:

Step 1: Find your Maximum heart rate(MHR):
This can be done in a laboratory exercise test, a field test like the beep test. In case you have cardiac concerns a submaximal test might be better. A safer but less…Read More

Cardiac strain is a measurement of the deviation of a part of the ECG( ST-segment) with respect to the baseline voltage. If the ST segment is depressed, cardiac strain is positive. If the ST segment is elevated, the cardiac strain is negative. A negative cardiac strain is a normal change seen in athletes who have extensive training experience,…Read More