Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2020) 19, 681 - 689

Research article
Effects of Tissue Flossing and Dynamic Stretching on Hamstring Muscles Function
Hiroaki Kaneda1, Naonobu Takahira1,2, , Kouji Tsuda1, Kiyoshi Tozaki1, Sho Kudo1, Yoshiki Takahashi1, Shuichi Sasaki1,3, Tomonori Kenmoku4
Author Information
1 Sensory and Motor Control, Graduate School of Medical Sciences, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0374, Japan
2 Physical Therapy Course, Department of Rehabilitation, School of Allied Health Sciences, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0374, Japan
3 Department of Rehabilitation, Kitasato University Hospital, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0374, Japan
4 Department of Orthopaedic Surgery, School of Medicine, Kitasato University, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0374, Japan

Naonobu Takahira
✉ Sensory and Motor Control, Graduate School of Medical Sciences, Kitasato University, Kitasato 1-15-1, Minami, Sagamihara, Kanagawa 252-0373, Japan
Email: takahira@med.kitasato-u.ac.jp
Publish Date
Received: 17-08-2020
Accepted: 15-09-2020
Published (online): 01-12-2020
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ABSTRACT

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.

Key words: Floss band, Fascia, Compression, Range of motion, Flexibility, Injury prevention


           Key Points
  • Effect of tissue flossing and dynamic stretching (DS) on hamstring muscles function was examined.
  • Flossing significantly increased straight leg raise, passive knee extension (KE), passive torque at end-range of motion (ROM), and maximal eccentric knee flexion contraction.
  • Flossing showed significantly higher increases than DS in passive KE test by 2.1 times and maximal eccentric knee extension contraction.
  • Flossing on hamstring muscles is more beneficial than DS with respect to increasing ROM and muscle exertion.
 
 
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