METHOD OF DETERMINING SPEED AND ACCURACY OF PHYSICAL ACTIONS OF ATHLETES IN PLAYING SPORTS Russian patent published in 2014 - IPC A61B5/16 

FIELD: sports.

SUBSTANCE: circle is shown to the subject on the video-monitor screen, on which a label is placed and the point object moving along the circle. The period of motion of the point object along the circle is set sequentially equal to 2.0; 1.7; 1.5; 1.3; 1.1; 0.9 and 0.7 seconds. At each period of turnover of the point object along the circle at the time of the supposed coincidence of position of the moving point object with the label the subject stops the movement of the point object along the circle with the given number of times by pressing the "Stop" button. Then the error of mismatching the point object and the label is calculated - the time of trailing error with a positive sign or anticipation with the negative sign, and after the specified time the motion of the point object along the circle is renewed. For each period of the turnover of the point object along the circle the estimate of the reaction time t of the subject to the moving object is calculated as the arithmetic mean by the formula $$t={\displaystyle \sum _{i=1}^n{t}_i/n},$$ where t_i is trailing i-error value or the absolute value of the anticipation error, ms; n is the number of stops of the point object in the label position area. Then the curve of a function t=f(T) is plotted, on the curve the zone of permissible values of reaction time t of the subject to the moving object is marked, corresponding to the value of the response time of the turnover period of the point object along the circle, equal to 2.0 s. The maximum speed of physical actions of the subject is taken as corresponding to the minimum period of turnover of the point object along the circle, when the value of the reaction time of the subject to the moving object, which characterises the accuracy of its physical actions, is in a permissible zone. Accuracy of physical actions is evaluated according to the size of zone of permissible values of the reaction time of the subject to the moving object.

EFFECT: method enables to set different period of the point object motion along the circle, and to determine the maximum speed of physical actions of the athlete in playing sports, when their accuracy is maintained by instrumental measurements.

6 dwg, 3 tbl, 3 ex