METHOD FOR ASSESSMENT OF STROKE ARM MOTION SKILLS IN CRAWL SWIMMING Russian patent published in 2010 - IPC A63B69/12 A63B21/00 

FIELD: sports.

SUBSTANCE: invention relates to competitive swimming, and namely to methods for assessment of stroke motions skills quality. Method for assessment of arm stroke motion skills in crawl swimming with the help of video camera, which is connected to computer. For this purpose in process of swimming the swimmer is video filmed from the side. Image from video camera arrives to computer display, on screen at the moment of hand entry into water the first point is registered on image of sportsman head, and at the moment of hand exiting the water, the second point is fixed. Then data on swimmer's height is entered into computer, and distance is calculated, at which the swimmer has advanced, having made a single stroke by one hand, which is "half-cycle pitch". Average value of "half-cycle pitch" is calculated for single hand in several swimming sessions. In the same manner average value of "half-cycle pitch" is produced for another hand. Then produced results are compared to detect asymmetry in motions of swimmer's hands.

EFFECT: improvement of swimmers' sports achievements.

3 cl