Comparison of three mobile devices for measuring R-R intervals and heart rate variability: Polar S810i, Suunto t6 and an ambulatory ECG system - Weippert, M.; Kumar, M.; Kreuzfeld, S.; Arndt, D.; Rieger, A.; Stoll, R. (European Journal of Applied Physiology, 2010)
Keywords: test; measuring procedure; auxiliary device; heart rate; Switzerland; biological and medical sciences; technical and natural sciences; sports facilities and sports equipment