A Study on the Relationship Between the Results of Shortening of the Iliopsoas Muscles and the Lumbar I nstability Tests in P atients with C hronic L ow B ack Pain (만성 허리통증 환자의 엉덩허리근 단축과 허리 불안정성 검사 간에 관련성 연구)

유창현; Suhnyeop Kim (김선엽)

A Study on the Relationship Between the Results of Shortening of the Iliopsoas Muscles and the Lumbar I nstability Tests in P atients with C hronic L ow B ack Pain

Journal of the Korean Society of Physical Medicine
Abbr : J Korean Soc Phys Med
2023, 18(2), pp.49-59
Publisher : The Korean Society of Physical Medicine
Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy
Received : November 1, 2022
Accepted : December 19, 2022
Published : May 31, 2023

유창현 ¹, Suhnyeop Kim ¹

¹대전대학교

Accredited

ABSTRACT

PURPOSE: This study examined the relationship between lumbar instability and shortening of the iliopsoas muscles in patients with chronic low back pain. METHODS: Forty-nine patients with chronic low back pain participated in this study. The modified Thomas test was used to examine the shortening state of the iliopsoas muscle. The length of the iliopsoas muscle was measured using the hip flexion angle, and those with a flexion angle of 10° or more were classified as positive. Five subtests were used for the lumbar instability test: testing for prone lumbar instability, passive lumbar extension, anterior-posterior mobility, passive straight leg raise, and age. Those who tested positive for at least three of these tests were classified as positive for the lumbar segment instability test. RESULTS: There was a significant association between the results of the lumbar instability test and the shortening of the iliopsoas test (p < .05). After analyzing the association between the iliopsoas length test and the five lumbar instability subtests, the results of the prone lumbar instability test (p < .001) and the anterior-posterior mobility test (p < .05) showed a significant association with the iliopsoas length test. CONCLUSION: The association between lumbar instability and shortening of the iliopsoas muscles was examined in 49 patients with chronic low back pain. Patients with shortened iliopsoas muscles tested positive in the lumbar instability tests more often. Hence, the length test of the iliopsoas muscle can be used to determine lumbar instability in patients with chronic low back pain.

KEYWORDS

Chronic low back pain, Iliopsoas, Lumbar instability test, Modified thomas test

Citation status

* References for papers published after 2023 are currently being built.

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