Introduction The human body is asymmetrical. This asymmetry manifests itself in many aspects, also in body function. We can observe certain advantage of one part of the body e.g. of the upper forelimbs over the other, in almost everyone. Such an advantage is called laterality. Sport is the field in which lateralization is quite clear. In various sports we can distinguish those with symmetrical, asymmetrical and mixed movements. Basketball is classified as the discipline with asymmetrical movements. Dribbling, throwing and sometimes also passes are the technical elements done by players with the use of one hand. The essential aim of the paper was to examine the influence of strength and differentiation abilities of both hands on the shooting efficiency of basketball players. Methods The research conducted on 23 young skilled basketball players aged from 17 to 19 years with at least 6 years of playing experience. The self reported handedness confirmed by writing test was recorded. All subjects gave informed consent for their participation in the experiment and were naive as to the purpose of the research. Strength and kinesthetic differentiation was diagnosed using hand dynamometer (Janmar). The shooting efficiency was evaluated as the total amount of successful throws from 6 different positions (10 throws from each position). Results Results for this study showed no statistically significant differences in strength and differentiation abilities (p<0.05) and significant difference in shooting efficiency of dominant and non-dominant hand (p<0.001). The empirical data indicates that the shooting efficiency of basketball players is not dependent on strength or kinesthetic differentiation dominance. These findings have implications in motor control and coaching applications.
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