Heart rate variability in elite American track and field athletes - Berkoff, D. J.; Cairns, C. B.; Sanchez, L. D.; Moorman, C. T. (The Journal of Strength and Conditioning Research, 2007)
Keywords: heart rate; heart; variability; track and field; endurance events; strength-speed strength event; sport physiology; heart rate variability; USA; endurance sports; biological and medical sciences; strength and speed sports