SUUNTO T4C User Guide - Manual (Page 18)

NOTE: Keep in mind that improving fitness requires patience, and the recommendations
given by Suunto Coach are optimized for progress, alternating between heavy and light
training sessions.
You can train at a higher or lower intensity or for more or less time than Suunto Coach
recommend to achieve each session's goal. Longer and harder training sessions than
recommended should be avoided. If you train more than recommended, it recommends
longer resting periods. After resting periods, it recommends harder training.
NOTE: Heart beat analysis technology producing the adaptive training program of
Suunto Coach is provided and supported by Firstbeat Technologies Ltd.
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