[Biomechanical analysis of dynamics and statics of the moving arm in musical instrumentalists]. / Analiza biomechaniczna dynamiki i statyki narzadu ruchu u muzyków instrumentalistów.

BACKGROUND: Biomechanical measurements of the motion organ in musicians are a separate issue of studies because of specific conditioning of complex motion functions which can be observed during playing an instrument. MATERIALS AND METHODS: The study was carried out in a group of 368 instrumentalists, taking into consideration the measurement of biomechanical parameters before, during and after musical performance. RESULTS: An analysis of adduction in the shoulder joint during playing an instrument showed that the largest average abduction angle appears in cellists, bassists, pianists and flutists, and it is larger in the left arm in the case of the double bass, and in the right arm in the case of the flute. The lowest average values are lowest in violinists and violists, but the static adduction of their right arm is remarkably larger. CONCLUSIONS: The study proves that playing an instrument causes specific load of the motion organ, both static and dynamic.