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Popis
Manage your High Intensity Interval Training with this app. Customize your Sprint and Recovery intervals as you change workouts or increase in stamina.
** High-intensity interval training (HIIT), also called high-intensity intermittent exercise (HIIE) or sprint interval training (SIT), is a form of interval training, a cardiovascular exercise strategy alternating short periods of intense anaerobic exercise with less intense recovery periods, until too exhausted to continue. Though there is no universal HIIT session duration, these intense workouts typically last under 30 minutes, with times varying based on a participant's current fitness level. **
en.wikipedia.org/wiki/High-intensity_interval_training
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