Cross-Education of Skill: Assessment of Overhand Throwing Using Product- and Process-Oriented Assessment.

: The aims of the present study were to: (1) investigate the magnitude and direction of the cross-education effect in a unilateral sport skill (overhand throw) and (2) to establish which practice condition (dominant hand only or alternating hands) would yield the best results. : The study involved three experimental groups of 11-year-old children ( = 59). The first group ( = 20) used only the dominant hand to throw the ball.