Heart rate variability in subjects with increased motor activity and athletes

Heart rate variability (HRV) was assessed with a NeiroSoft hardware and software complex in 303 subjects, including subjects with increased motor activity and athletes. Factor analysis was used to reveal the most informative HRV indices, which accounted for two-thirds of the generalized variance of the indices under study, evidencing a balanced and orderly state of the body in subjects with increased motor activity and athletes and the improvement of neurohumoral and autonomic control of motor functions. © MAIK "Nauka/Interperiodica" 2005.