VitaSport: Workouts control

Pro version: https://play.google.com/store/apps/details?id=net.vitasport.pro
«VitaSport» — mobile app for sports fans, which allows to independently control the body adapt to physical stress, sport result to forecast and detect the state of overtraining.
Attention! To obtain correct results, you must be healthy, not have chronic, acute respiratory and other diseases.
How does it work?
Mobile app pulse diagnosis «Vita Sport» real-time monitors changes in heart rhythm. This does not require any expensive special sensors or devices, because the heart rate registration performed using only the built-in camera of your smartphone (there is synchronization mode with the heart rate sensors).
App with using the camera reads blood circulation in finger, which gives necessary information on work of heart. After pulse being detected, the registration of the interpulse intervals and recording of the cardiointervalogram are conducted. The duration of each cardiac cycle differs from the previous and app is estimated with an accuracy of one millisecond. Sequential change durations cardiac cycles forms a complex rhythm that is analyzed by app.
After finishing the survey the program analyzes received data and calculates indicators based on heart rate variability technology (HRV) - a modern method of research of functional diagnostics. HRV is used in sports medicine and to determine the current condition of the body, to assess the condition of the autonomic nervous system, the work of regulation mechanisms, functional and adaptive reserves of man.
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