Comparison of Somnological Parameters Obtained Using Polar Vantage V Sports Watches and the Polysomnography Method

Synchronous registration of sleep parameters in practically healthy young women was carried out using polysomnography and by recording the rhythmocardiographic activity of the sleeping body using a Polar Vantage V sports watch. The data obtained were compared in pairs, using the Spearman rank correlation method and by epoch-by-epoch comparison of sleep phase coincidence indicators. A high degree of correspondence was revealed with the total duration of sleep, time spent in bed, sleep efficiency values, and the total duration of short-term awakenings recorded by the two above-mentioned methods. The mode of epoch-by-epoch comparison of the periods of coincidence of the Rem phases, as well as the N2 and N3 phases during polysomnographic and rhythmocardiographic registration, brought results not exceeding 60%.