hrTSS by default it works in trial mode and only runs for 30 minutes.</p><p></p><p>To activate the app to full mode contact me after donate 3,9€ attaching the email address - http://paypal.me/MattinG </p><p></p><p>Supoort in https://forums.garmin.com/showthread.php?344188-hrTSS-DataField</p><p></p><p>Training Stress Score® (TSS) is a way of measuring how much stress is put on your body from a ride. To calculate TSS® is necesary a power meter or estimate with heart rate zones determinate by Joe Friel in this article: </p>
New device support
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