PDF(Pubmed)
Abstract：
With innovative force plate technology being available to many sports organizations worldwide that allow for time-efficient in-depth neuromuscular performance assessment, the purpose of the present study was to examine the relationship between some of the most commonly analyzed countermovement vertical jump (CVJ) force-time metrics and basketball playing time and efficiency. Twenty-four professional male basketball players volunteered to participate in the present study. The CVJ testing procedures were conducted within the first quarter of the competitive season span. Following a standardized warm-up protocol, each athlete stepped on a dual uni-axial force plate system sampling at 1,000 Hz and performed three maximum-effort CVJs with no arm swing. To minimize the possible influence of fatigue, each jump trial was separated by a 10-15 s rest interval and the average value across three jumps was used for performance analysis purposes. Basketball playing efficiency and average playing time were obtained at the end of the regular season competitive period from the coaching staff records and the official team records. Pearson product-moment correlation coefficients (r) were used to examine the strength of the relationships between force-time metrics and basketball playing time and efficiency, separately for each dependent variable (p < 0.05). A significant positive association was observed between playing efficiency and eccentric mean force and eccentric mean and peak power (r = 0.406-0.552). Similarly, an increase in eccentric mean power was positively correlated with the number of minutes played during the competitive season (r = 0.464). Moreover, the aforementioned relationship remained present even when eccentric mean power was expressed relative to the player\'s body mass (r = 0.406). Thus, the findings of the present study indicate that, at the professional level of men\'s basketball competition, CVJ eccentric strength and power have a positive impact on both playing time and efficiency.
摘要：
随着全球许多体育组织都可以使用创新的力板技术，可以进行及时有效的深入神经肌肉性能评估，本研究的目的是研究一些最常用的反运动垂直跳跃(CVJ)力-时间指标与篮球比赛时间和效率之间的关系.24名职业男子篮球运动员自愿参加本研究。CVJ测试程序在竞争赛季的第一季度内进行。按照标准化的热身协议,每位运动员在1,000Hz的频率下踩下双单轴测力板系统，并在没有手臂摆动的情况下执行了三个最大努力的CVJ。为了最大限度地减少疲劳的可能影响，每个跳跃试验以10~15s的休息间隔分开,3次跳跃的平均值用于性能分析.篮球比赛效率和平均比赛时间是在常规赛比赛结束时从教练组记录和正式团队记录中获得的。皮尔逊积矩相关系数(r)用于检验力-时间指标与篮球比赛时间和效率之间的关系的强度,分别针对每个因变量(p<0.05)。在演奏效率与偏心平均力以及偏心平均和峰值功率之间观察到显着的正相关（r=0.406-0.552）。同样，偏心平均功率的增加与比赛赛季的上场时间呈正相关（r=0.464）。此外，即使相对于运动员的体重（r=0.406）表示偏心平均力量，上述关系仍然存在。因此，本研究的结果表明，在男子篮球比赛的专业水平，CVJ偏心强度和功率对演奏时间和效率都有积极影响。
