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ISSN : 2092-8475(Print)
ISSN : 2714-0148(Online)
Journal of International Academy of Physical Therapy Research Vol.11 No.3 pp.2102-2106
DOI : https://doi.org/10.20540/JIAPTR.2020.11.3.2102

The Effects of Static Hamstring Stretching on Hip Motion and Lumbo-Pelvic Kinematics

Jaeseop Oha, Minhyeok Kangb
aDepartment of Physical Therapy, Inje University, Gimhae, Republic of Korea; bDepartment of Physical Therapy, Catholic University of Pusan, Busan, Republic of Korea
E-mail: kmhyuk01@gamil.com
Address for correspondence Minhyeok Kang, PT, PhD Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan, 57, Oryundae-ro, Geumjeong-gu, Busan, Republic of Korea Tel: 82-51-510-0551

Abstract

Background: Static hamstring stretching exercises have been widely used to improve flexibility of the hamstring muscles. However, few studies have examined the influence of standing static hamstring stretching (e.g., jack-knife stretching) on movements of the lumbopelvic–hip complex.
Objectives: To examine the short-term effects of jack-knife stretching on movements of the lumbopelvic–hip complex.
Design: Case series.
Methods: Fourteen participants with hamstring tightness (8 male, 6 female) were recruited. Participants performed jack-knife stretching for 150 s. Before and after stretching, participants performed the finger-to-floor distance (FFD), sit and reach (SRT), active knee extension (AKE), passive straight leg raising (PSLA), and active straight leg raising (ASLR) tests as well as pelvic tilt while standing to identify the effects of stretching.
Results: There were significant improvements in the FFD, SRT, AKE, PSLA, and ASLR tests after stretching. However, pelvic tilt angle while standing did not significantly change.
Conclusion: Jack-knife stretching can be a useful exercise to improve flexibility of the hamstring muscles, but not pelvic alignment while standing.

초록

 

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