The group of inventions relates to the field of measurements aimed at studying or analyzing movements of a human body or parts thereof for diagnostic purposes, in particular the determining of types of human motor activity. To implement the method, signals generated by a three-component accelerometer attached to human body are recorded and lay the basis for calculating acceleration vector magnitudes, forming a time array of acceleration vector magnitudes, and identifying its extrema. Thereafter, duration of separate motor acts and the differences between adjacent extrema of acceleration vector magnitude for each motor act are determined by counting, consecutively from one extremum to another, the number of extrema equal to a reference number of extrema in at least one pattern, which is pre-formed for a certain type of motor activity and characterized by a specific reference number of acceleration vector magnitude extrema, a specific reference value of motor act duration, and specific reference values of difference between adjacent extrema of acceleration vector magnitude； Based on comparison results, a decision is made on whether a motor act of a certain type of motor activity is performed. The technical result pursued by this method is to make the identification of types of human motor activity more reliable.
