背景:考虑到疲劳对运动表现的影响以及随后受伤概率的增加,这项研究的目的是比较缓慢动态的影响,快速动态,和静态拉伸对性能的恢复,运动范围(ROM),balance,和联合位置感。
方法:15名大学健康女性参加了四个单独的慢速动态拉伸(SDS)课程,快速动态拉伸(FDS),静态拉伸(SS),和控制条件(CC;无拉伸),以随机顺序进行,每次会话之间至少有48小时的休息。热身后,个人进行ROM,balance,关节位置感(JPS)最大自愿性等距收缩(MVIC)力以及反向运动(CMJ)和下蹲跳跃(SJ)作为预测。在执行1次重复最大(RM)的60%的4组膝盖伸展和屈曲的膝盖疲劳方案后,至筋疲力尽(CC;不拉伸)或拉伸程序(SDS或FDS或SS),受试者在测试后1(5分钟后)和测试后2(60分钟后)重复所有测试。
结果:使用SDS检测到JPS误差明显降低,而在SS和对照条件下JPS误差增加(p<0.0001)。MVIC力随SDS和FDS显著增加,但在对照和SS条件下降低(p<0.0001)。此外,在SS和对照条件下,CMJ和SJ高度显着降低(p<0.0001)。此外,与对照条件的平衡显着下降。但只有SDS使疲劳引起的平衡递减最小化(p<0.0001)。此外,控制条件经历了膝关节伸肌ROM的显着减少,与拉伸条件下股四头肌柔韧性的显着增加形成对比。
结论:目前的结果支持SDS可能增加股四头肌MVIC力的观点,膝关节伸肌ROM和膝关节JPS。所以根据目前的结果,建议可以实施SDS并将其纳入常规恢复计划。
BACKGROUND: Considering the effects of fatigue on athletic performance and the subsequent increase in the probability of injury, the purpose of this study was to compare the effects of slow dynamic, fast dynamic, and static stretching on the recovery of performance, range of motion (ROM), balance, and joint position sense.
METHODS: Fifteen collegiate healthy females were involved in four separate sessions of slow dynamic stretching (SDS), fast dynamic stretching (FDS), static stretching (SS), and control condition (CC; without stretching), in a random order with at least 48 h of rest between sessions. After warming up, the individuals performed ROM, balance, joint position sense (JPS) maximum voluntary isometric contraction (MVIC) force as well as countermovement (CMJ) and squat jump (SJ) as pre-tests. After performing the knee fatigue protocol of 4 sets of knee extension and flexion at 60% of 1 repetition maximum (RM) to exhaustion (CC; without stretching) or stretching programs (SDS or FDS or SS), the subjects repeated all the tests at post-test 1 (after 5 min) and post-test 2 (after 60 min).
RESULTS: A significantly lower JPS error was detected with SDS while JPS error increased in the SS and control conditions (p < 0.0001). MVIC force significantly increased with SDS and FDS but decreased in control and SS conditions (p < 0.0001). Moreover, a significant decrease in CMJ and SJ height in SS and control conditions was revealed (p < 0.0001). Also, a significant decrease in balance with the control condition was revealed. But only SDS minimized fatigue-induced balance decrements (p < 0.0001). Additionally, the control condition experienced a significant decrease in knee extensor ROM, which contrasted with the significant increase in the quadriceps flexibility with the stretching conditions.
CONCLUSIONS: The present results support the idea that SDS may increase quadriceps MVIC force, knee extensor ROM and knee JPS. So according to the present results, it is suggested that the SDS could be implemented and incorporated into a regular recovery program.