Abstract:
Given the complex nature of the handball as a game, players are required to possess a distinct set of physical and physiological attributes to attain peak performance. With the countermovement vertical jump (CVJ) being widely implemented as a non-invasive and time-efficient testing modality in sports settings, the purpose of the present study was twofold: (a) to establish a CVJ profile of professional female handball players and (b) to examine differences in force-time metrics between starters and non-starters. Forty-two professional female handball players (e.g., SuperLeague) volunteered to participate in this study. Each athlete performed three maximum-effort CVJs with no arm swing while standing on a uni-axial force plate system sampling at 1,000 Hz. Independent t-tests were used to examine differences in each variable between starters and non-starters. The results revealed that starters attained superior performance within the eccentric phase of the CVJ when compared to non-starters, particularly in terms of eccentric peak velocity (-0.957 ± 0.242 vs. -0.794 ± 0.177 m·s-1), eccentric mean power (320.0 ± 77.7 vs. 267.1 ± 75.2 W), and eccentric peak power (929.0 ± 388.1 vs. 684.4 ± 214.2 W). While not reaching the level of statistical significance, moderate-to-large effect sizes were observed for concentric impulse, peak velocity, and mean and peak force and power, all in favor of players included in the starting lineup (g = 0.439-0.655). Overall, these findings suggest that at the top-tier level of handball competition, the ability to secure a spot in a starting lineup may be possibly influenced by the athlete\'s eccentric performance capabilities. Thus, the development of lower-body eccentric strength and power may positively impact on-court athlete performance and ultimately help the team secure the desired game outcome.
摘要:
鉴于手球作为游戏的复杂性,玩家必须拥有一套独特的身体和生理属性才能达到最佳表现。随着反运动垂直跳跃(CVJ)在运动环境中被广泛实施为一种非侵入性和时效性的测试方式,本研究的目的是双重的:(a)建立职业女手球运动员的CVJ档案,以及(b)检查首发和非首发之间的用力时间指标差异。42名职业女手球运动员(例如,SuperLeague)自愿参加这项研究。每位运动员站在1,000Hz的单轴测力板系统上,进行了三个最大努力的CVJ,没有手臂摆动。使用独立的t检验来检查启动者和非启动者之间每个变量的差异。结果表明,与非起动器相比,起动器在CVJ的偏心阶段内获得了卓越的性能,特别是在偏心峰值速度方面(-0.957±0.242vs.-0.794±0.177m·s-1),偏心平均功率(320.0±77.7vs.267.1±75.2瓦),和偏心峰值功率(929.0±388.1vs.684.4±214.2W)。虽然没有达到统计意义的水平,对于同心脉冲,观察到中等到大的效应大小,峰值速度,平均和峰值力和力量,所有支持球员包括在首发阵容(g=0.439-0.655)。总的来说,这些发现表明,在手球比赛的顶级水平,在首发阵容中获得一席之地的能力可能会受到运动员偏心表现能力的影响。因此,下半身偏心力量和力量的发展可能会对场上运动员的表现产生积极影响,并最终帮助球队确保所需的比赛结果。