Heart Rate Stress Score (hrTSS)

Heart Rate Training Stress Score helps to represent the physiological cost of an individual activity. It is derived from the time spent in each heart rate training zone.

We use hrTSS to calculate the Training Load of an activity in case we can't use other, usually more accurate methods, such as data from a power meter.

Sign up for free to start tracking your Heart Rate Stress Score (hrTSS) .

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