The training effect is a measure by Firstbeat and Garmin to evaluate the training's ffort concerning the impact on the physiology, in particular future aerobic performance. Garmin devices analyze heart rate data during activity to estimate EPOC (excess post-exercise oxygen consumption) and determine the related training effect. Training effect values are useful to control one's weekly training to prevent overtraining.
Runalyze reads training effect values only when importing *.fit-files (provided that the file contains a training effect value).
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