Donskov Anthony S, Brooks Jeffrey S, Dickey James P
Department of Kinesiology, University of Western Ontario, London, ON N6A 357, Canada.
Donskov Strength and Conditioning, Columbus, OH 43229, USA.
Sports (Basel). 2021 Jul 26;9(8):105. doi: 10.3390/sports9080105.
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.
功能表现测试提供了关于专项运动动作的定量信息，对于记录训练和疲劳情况很重要。单腿内侧反向跳跃能提供额状面力量、速度和功率的客观测量值，鉴于其与滑冰类似的横向运动，对冰球运动员具有相关性。本研究测量了男性青少年冰球运动员单腿内侧反向跳跃的标准参数（即垂直和横向最大力量、平均向心功率以及最后100毫秒内的平均向心功率），并评估了这些健康运动员的双侧不对称性。91名精英青少年运动员参与了该研究。参与者完成了三次右脚和三次左脚跳跃。进行非参数检验以评估跳跃间和组间的比较。在10岁/11岁和12岁/13岁年龄组之间，以及12岁/13岁和14岁/15岁年龄组之间，观察到跳跃力量和功率参数存在许多差异，但年龄较大或较小的运动员之间的差异并不那么一致。各年龄组力量参数的平均不对称指数小于15%，而功率参数的不对称指数较大（在9%至22%之间）。我们的研究结果为10 - 18岁男性精英青少年冰球运动员进行单腿内侧反向跳跃提供了特定年龄的参考值和不对称指数。
