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

오재섭, 강민혁,
소속 상세정보
오재섭 ( Oh Jae-Seop ) - Inje University Department of Physical Therapy
강민혁 ( Kang Min-Hyeok ) - Catholic University of Pusan Department of Physical Therapy

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.

키워드

Hamstring tightness; Kinematics; Stretching

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