A possibility was studied of applying the deep and infrequent respiration test with an object of increasing the informativeness of the statistical parameters of the ECG sequence interval as applicable to the quantitative evaluation of the functional state of man. Examination of patients with wound infection shown that the deep respiration test makes in possible to assess quantitatively the status of test subjects on the basis of two statistical parameters (the mean value of RR interval of ECG and root-mean-square deviation).
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