Research Group: Musculoskeletal System, Physiotherapy and Sports. University of Murcia, Murcia, Spain.
Phys Ther Sport. 2013 May;14(2):98-104. doi: 10.1016/j.ptsp.2012.03.013. Epub 2012 Sep 21.
(1) to analyse the accumulative effects of a 12-week active stretching program on hip flexion passive range of motion (HF-PROM), and (2) to compare whether participants with different PROM baseline scores (normal and limited hamstring flexibility) respond in the same way to stretching.
Repeated measures design.
Controlled laboratory environment.
138 males were categorized according to hamstring flexibility in the unilateral passive straight-leg raise test (PSLR) and assigned to one of two groups: normal hamstring flexibility (≥80°) or limited hamstring flexibility (<80°). In each group, participants were randomly distributed into one of two treatment subgroups: (a) control or (b) active stretching. The active stretching subgroups performed 12 weeks of flexibility training, the control subgroups did not stretch.
HF-PROM was determined through the PSLR test.
Both stretching subgroups significantly improved (p < 0.01) their HF-PROM from baseline. The control subgroups did not.
12 weeks of an active stretching program performed 3 days per week with a daily stretch dose of 180 s improved HF-PROM in both populations (normal and limited hamstring flexibility). The stretching program was equally effective in terms of absolute improvement values for males with normal and limited hamstring flexibility.
（1）分析为期 12 周的主动伸展计划对髋关节屈曲被动活动度（HF-PROM）的累积效应，以及（2）比较具有不同 PROM 基线分数（正常和受限腘绳肌柔韧性）的参与者是否以相同的方式对伸展做出反应。
重复测量设计。
受控实验室环境。
根据单侧被动直腿抬高试验（PSLR）中腘绳肌的柔韧性，138 名男性被分为两组：正常腘绳肌柔韧性（≥80°）或受限腘绳肌柔韧性（<80°）。在每组中，参与者被随机分配到以下两个治疗亚组之一：（a）对照组或（b）主动伸展组。主动伸展亚组进行了 12 周的柔韧性训练，对照组则不伸展。
HF-PROM 通过 PSLR 测试确定。
两组伸展亚组的 HF-PROM 均从基线显著改善（p<0.01）。对照组则没有。
每周进行 3 天、每天伸展 180 秒的 12 周主动伸展计划可改善两组人群（正常和受限腘绳肌柔韧性）的 HF-PROM。对于具有正常和受限腘绳肌柔韧性的男性，伸展计划在绝对改善值方面同样有效。
