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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Mediation Effect of Age Category on the Relationship between Body Composition and the Physical Fitness Profile in Youth Handball Players
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Mediation Effect of Age Category on the Relationship between Body Composition and the Physical Fitness Profile in Youth Handball Players

机译：年龄类别对青少年手球运动员身体成分与身体素质关系的中介作用

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The aims of the present study were (1) to determine the differences in body composition and the physical and physiological profile of handball youths across age categories, and (2) to analyze the mediation effect of different categories on the relationship between lean mass or fat mass and specific physical handball capacities. Fifty-four young handball players aged 13 to 18 were assigned to U14 (13- and 14-year-olds), U16 (15- and 16-year-olds), and U18 (17- and 18-year-olds). Body composition was measured using multi-frequency bioelectrical impedance (Inbody®, 230). Handball physical fitness was assessed using handgrip force, jumping tests (squat jump, countermovement jump, countermovement jump with aimed arms), a 30-m sprint, a change-of-direction test (T-half agility test and modified Illinois test), and a Yo-Yo intermittent recovery test level 1. Simple mediation analysis was performed to analyze whether the category mediated the relationship between lean mass or fat mass and physical capacities. No significant differences were observed according to category for the majority of the measured parameters, except for height, lean body mass, and arm span. Lean body mass increased significantly as player category increased ( < 0.05; = 4.66–9.38; effect size (ES) = 0.96–1.92). The increase in handball category enhanced the majority of the physical capacities evaluated; however, these differences were reduced between the U16 vs. U18 categories. The indirect mediation effect suggests that handball category mediated the relationship between lean mass and upper and lower strength, velocity, agility, and cardiorespiratory fitness. In contrast, an indirect effect suggests that category mediated the relationship between fat mass only in agility and cardiorespiratory fitness. We conclude that U18s showed better body composition parameters, as well as better physical performance scores. Handball category clearly mediated the relationship between body composition through lean mass and fat mass and the physiological profile in handball youth, but lean mass proved to be more relevant when mediating physical performance.
机译：本研究的目的是（1）确定不同年龄类别的手球青年的身体组成和生理生理差异，以及（2）分析不同类别对瘦体重或脂肪之间关系的中介作用质量和特定的手球能力。年龄为13至18岁的54名年轻手球运动员被分配到U14（13岁和14岁），U16（15岁和16岁）和U18（17岁和18岁）。使用多频生物电阻抗（Inbody®，230）测量身体成分。使用握力，跳跃测试（深蹲跳跃，反向移动跳跃，瞄准臂反向移动跳跃），30米短跑，方向改变测试（T型半敏捷性测试和改良的伊利诺伊州测试）评估手球的身体适应性，以及悠悠球间歇性恢复测试水平1.进行了简单的中介分析，以分析该类别是否介导了瘦体重或脂肪质量与体力之间的关系。除了身高，瘦体重和臂展以外，大多数测量参数的类别均未观察到明显差异。瘦体重随着球员类别的增加而显着增加（<0.05； = 4.66–9.38；效应大小（ES）= 0.96–1.92）。手球类别的增加增强了所评估的大多数体能；但是，U16与U18类别之间的差异有所减少。间接中介效应表明，手球类别介导了瘦体重与上下力量，速度，敏捷性和心肺适应性之间的关系。相反，间接作用表明类别仅在敏捷中介导脂肪量与心肺健康之间的关系。我们得出的结论是，U18表现出更好的身体成分参数以及更好的身体成绩。手球类别清楚地通过瘦体重和脂肪质量介导了身体成分与手球青年之间的生理状况之间的关系，但事实证明，瘦体重在调节身体表现时更为相关。

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