Funk Daniel C, Swank Ann M, Mikla Benjamin M, Fagan Todd A, Farr Brian K
Sport Management Program, University of Texas at Austin, Austin, TX 78712, USA.
J Strength Cond Res. 2003 Aug;17(3):489-92. doi: 10.1519/1533-4287(2003)017<0489:iopeoh>2.0.co;2.
Position stands from the American College of Sports Medicine and the Surgeon General site a need for strategies capable of enhancing the effectiveness of stretching on flexibility and joint range of motion. One strategy for enhancing flexibility that has received anecdotal support but lacks substantial experimental evidence is the impact of prior exercise. This study compared 5 minutes of static stretching and proprioceptive neuromuscular facilitation (PNF) on hamstring flexibility performed with and without exercise. Forty undergraduate student-athletes participated in a repeated measure, counterbalanced experimental design. Within-group comparisons indicated that PNF resulted in a significant (p < 0.05) increase in flexibility after 60 minutes of exercise when compared with baseline (9.6%) and without exercise (7.8%). No differences were observed with static stretching across time. In addition, no differences were observed between the groups at any time point. Results demonstrated that PNF performed after exercise enhanced acute hamstring flexibility, and implementing a PNF stretching routine following exercise may augment current stretching practices among athletes.
美国运动医学学会和美国卫生局局长网站的立场表明，需要有能够提高拉伸对柔韧性和关节活动范围有效性的策略。一种虽得到坊间支持但缺乏大量实验证据的提高柔韧性的策略是先进行运动的影响。本研究比较了在有运动和无运动情况下进行5分钟静态拉伸和本体感觉神经肌肉促进法（PNF）对腘绳肌柔韧性的影响。40名本科学生运动员参与了一项重复测量、平衡的实验设计。组内比较表明，与基线相比（9.6%）以及与无运动时相比（7.8%），运动60分钟后进行PNF可使柔韧性显著提高（p < 0.05）。在不同时间点进行静态拉伸未观察到差异。此外，在任何时间点两组之间均未观察到差异。结果表明，运动后进行PNF可提高急性腘绳肌柔韧性，并且在运动后实施PNF拉伸程序可能会增强当前运动员的拉伸练习。
