Sensory and Motor Control, Graduate School of Medical Sciences, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0374, Japan.
Physical Therapy Course, Department of Rehabilitation, School of Allied Health Sciences, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0374, Japan.
J Sports Sci Med. 2020 Nov 19;19(4):681-689. eCollection 2020 Dec.
Tissue flossing aims to improve range of motion (ROM), reduce pain, and enhance injury prevention. However, evidence is lacking regarding its effects. Therefore, this study examined the effects of flossing on hamstring muscles function in comparison to dynamic stretching (DS). Seventeen healthy young men ([mean ± SD] age, 23.2 ± 1.1 years; height, 1.72 ± 0.08 m; body mass, 63.5 ± 9.3 kg) volunteered as subjects in this randomized crossover trial. The subjects received flossing, DS, and control interventions in random order at least 1 week apart to eliminate the influence of the previous intervention. Flossing involved passive twisting and active movement using a floss band (Sanctband COMPRE Floss Blueberry, Sanct Japan Co., Ltd.). DS was performed for 4 minutes in 30-second sets consisting of 15 repetitions of 2 seconds stretching. The following were measured before and after each intervention: straight leg raise (SLR) test, passive knee extension (KE) test, passive torque, passive stiffness, fascicle length in the biceps femoris long head as an indication of hamstring muscles flexibility, and maximal isometric knee flexion contraction, maximal eccentric knee extension/flexion contraction, rate of force development, and muscle activity. Flossing yielded significant improvements in the SLR test (mean difference in post-intervention changes between interventions: 5.4°, percentage change from pre- to post-value: 13.4%, p = 0.004), passive KE test (6.2°, 4.5%, p < 0.001), passive torque at end-ROM (3.8 Nm, 4.7%, p = 0.03), and maximal eccentric knee flexion contraction (14.9% body weight, 8.2%, p = 0.03) than control. Moreover, flossing yielded 2.1-fold greater improvements in the passive KE test (3.8°, 4.5%, p = 0.03) and yielded significant improvements in the maximal eccentric knee extension contraction (29.9% body weight, 13.8%, p = 0.02) than DS. Therefore, flossing on hamstring muscles is more beneficial than DS with respect to increasing ROM and muscle exertion.
筋膜放松术旨在改善运动范围（ROM）、减轻疼痛并增强预防损伤的效果。然而，其效果的证据尚不足。因此，本研究比较了筋膜放松术与动态伸展（DS）对腘绳肌功能的影响。17 名健康年轻男性（[均值 ± 标准差]年龄，23.2 ± 1.1 岁；身高，1.72 ± 0.08 m；体重，63.5 ± 9.3 kg）自愿参加了这项随机交叉试验。受试者以随机顺序至少间隔 1 周接受筋膜放松术、DS 和对照组干预，以消除前一次干预的影响。筋膜放松术使用一条筋膜带（Sanctband COMPRE Floss Blueberry，Sanct Japan Co.，Ltd.）进行被动扭转和主动运动。DS 持续 4 分钟，30 秒一组，每组包括 15 次 2 秒伸展的重复运动。在每次干预前后测量以下参数：直腿抬高（SLR）测试、被动膝关节伸展（KE）测试、被动扭矩、被动刚度、股二头肌长头的肌纤维长度（作为腘绳肌柔韧性的指标）以及最大等长膝关节屈曲收缩、最大离心膝关节伸展/屈曲收缩、力量发展速度和肌肉活动。筋膜放松术在 SLR 测试（干预后变化的组间差异：5.4°，从预值到后值的百分比变化：13.4%，p = 0.004）、被动 KE 测试（6.2°，4.5%，p < 0.001）、末端 ROM 处的被动扭矩（3.8 Nm，4.7%，p = 0.03）和最大离心膝关节屈曲收缩（14.9%体重，8.2%，p = 0.03）方面的效果显著优于对照组。此外，筋膜放松术在被动 KE 测试中的改善程度比 DS 高 2.1 倍（3.8°，4.5%，p = 0.03），在最大离心膝关节伸展收缩中的改善程度也显著高于 DS（29.9%体重，13.8%，p = 0.02）。因此，与 DS 相比，筋膜放松术对增加 ROM 和肌肉用力更有益。
