Functional performance tests provide quantitative information on specialized sport movements and are important for documenting training and fatigue. The single leg, medial countermovement jump provides objective measures of frontal plane force, velocity and power, and is relevant for ice hockey players given the similar lateral movement to ice skating. This study measured normative single leg, medial countermovement jump parameters (i.e., vertical and lateral maximum force, average concentric power and average concentric power during the last 100 ms) amongst male youth ice hockey players and assessed interlimb asymmetry in these healthy athletes. Ninety-one elite youth players participated in the study. Participants completed three right and three left jumps. Non-parametric tests were performed to evaluate between-jump and between-group comparisons. Many differences in jump force and power parameters were observed between the 10U/11U and 12U/13U age groups, and the 12U/13U and 14U/15U age groups, but differences were not as consistent between older or younger players. The average asymmetry index for each age group was less than 15% for force parameters, while the power parameters had larger asymmetry indices (between 9% and 22%). Our results provide age-specific reference values and asymmetry indices for male elite youth ice hockey players aged 10–18 years performing the single leg, medial countermovement jump.

中文翻译：

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青少年冰球运动员单腿内侧反跳跳规范参考


功能表现测试提供有关专门运动动作的定量信息，对于记录训练和疲劳非常重要。单腿内侧反向运动跳跃提供了额面力、速度和力量的客观测量，并且与冰球运动员相关，因为横向运动与滑冰类似。本研究测量了男性青少年冰球运动员的标准单腿、内侧反向运动跳跃参数（即垂直和横向最大力、平均同心功率和最后 100 毫秒内的平均同心功率），并评估了这些健康运动员的肢体间不对称性。 91名优秀青少年球员参与了这项研究。参与者完成了三项右跳和三项左跳。进行非参数检验以评估跳跃间和组间比较。在 10U/11U 和 12U/13U 年龄组以及 12U/13U 和 14U/15U 年龄组之间观察到跳跃力和功率参数存在许多差异，但年长或年轻运动员之间的差异并不一致。力参数各年龄段的平均不对称指数均小于15%，而功率参数的不对称指数较大（9%~22%之间）。我们的研究结果为 10-18 岁的男性精英青少年冰球运动员进行单腿内侧反向运动跳跃提供了特定年龄的参考值和不对称指数。