Counterrotation of the trunk at basic turns on snowboard

Title: Counten·otation ofthe trunk at basic tums on snowboard. Aim ofthesis: Aim ofmy thesis is with EMG measure activities ofmuscles in snowboards basic curves and evaluate obtained data. Method: EMG meausuring in copany with cinematographical analysis with the aid of synchronised videorecord. Results: In a confrontation oftwo kinds snowboards curves, experts called like true and false, we demonstrate periodical moving of muscles performance by m. obliquus abdominis extemus dexter and m. pectoralis major dexter. It bears to our opinions about antagonistics working this part of movements system by mentioned types of curves. Key words: muscels chains, electromyography, snowboarding, counterrotation.