Teixeira Maria Cândida Tocci, Teixeira Luis Augusto
Human Motor Systems Laboratory University of São Paulo São Paulo 05508-900, Brazil.
Dev Psychobiol. 2008 Dec;50(8):799-806. doi: 10.1002/dev.20322.
Strength of leg preference and interlateral asymmetry in kinematics of kicking a ball for power were assessed in 6- to 10-year-old right-footed soccer player children. Leg preference was evaluated separately for three task categories: balance stabilization, soccer related mobilization, and general mobilization. The results showed that while both categories of mobilization tasks were featured by a consistent preference for the right leg, in stabilization tasks we observed lower scores and greater interindividual variability of leg preference. No effect of age was detected on leg preference. Analysis of peak foot velocity revealed similar increment of performance of the right and left legs from the ages 6-8 to 10 years. This finding supports the notion of stable magnitude of interlateral asymmetries of performance during motor development.
对6至10岁的右足足球运动员儿童进行了腿部偏好强度以及踢球发力运动学中的双侧不对称评估。针对平衡稳定、足球相关活动以及一般活动这三个任务类别分别评估腿部偏好。结果显示，虽然两类活动任务的特点都是一致偏好右腿，但在稳定任务中，我们观察到腿部偏好得分较低且个体间差异较大。未检测到年龄对腿部偏好有影响。对足部峰值速度的分析表明，从6至8岁到10岁，左右腿的表现有类似的提升。这一发现支持了运动发育过程中双侧表现不对称程度稳定的观点。
