Abstract: The invention relates to a method for determining the physical and/or psychological state of a subject. The heart rate variability (HRV) of the subject is analyzed in the time domain, wherein at least one frequency distribution of interbeat intervals (IBI) which are detected in at least one examination time period (1) is examined in the analysis. In order to obtain particularly significant and quickly interpretable information for this purpose, the frequency distribution is examined for a multimodal distribution.

Abstract: The invention relates to a method for determining the physical and/or psychological state of a subject. The heart rate variability (HRV) of the subject is analyzed in the time domain, wherein at least one frequency distribution of interbeat intervals (IBI) which are detected in at least one examination time period (1) is examined in the analysis. In order to obtain particularly significant and quickly interpretable information for this purpose, the frequency distribution is examined for a multimodal distribution.

Abstract: Method of determining the training intensity of a person (2), whereby time intervals RRi (13) between consecutive heartbeats are recorded whereupon from sequences of these time intervals RRi (13) a sequence of standardised intervals rri (14) is generated through mathematical modelling. From two consecutive standardised intervals rri (14) and rri+1 points in a Poincaré plot are generated and with regard to the principal horizontal axis X0 (16) of a confidence ellipse of these points a standard deviation SOL is calculated. From pairs of values formed of a mean value RRMV of the sequence of intervals RRi (13) and the standard deviation SOL for further sequences of standardised intervals rri (14) a training intensity curve (20) is then produced for the person (2) whereby the training intensity curve (20) is produced from pairs of values of the heart frequencies HF (HF=1/RRMV) corresponding to the mean values RRMV and the standard deviations SOL.

Abstract: Method of determining the training intensity of a person (2), whereby time intervals RRi (13) between consecutive heartbeats are recorded whereupon from sequences of these time intervals RRi (13) a sequence of standardised intervals rri (14) is generated through mathematical modelling. From two consecutive standardised intervals rri (14) and rri+1 points in a Poincaré plot are generated and with regard to the principal horizontal axis X0 (16) of a confidence ellipse of these points a standard deviation SOL is calculated. From pairs of values formed of a mean value RRMV of the sequence of intervals RRi (13) and the standard deviation SOL for further sequences of standardised intervals rri (14) a training intensity curve (20) is then produced for the person (2) whereby the training intensity curve (20) is produced from pairs of values of the heart frequencies HF (HF=1/RRMV) corresponding to the mean values RRMV and the standard deviations SOL.