J Korean Acad Rehabil Med Search

CLOSE


Journal of the Korean Academy of Rehabilitation Medicine 1997;21(1):1-7.
Isometric Evaluation of the Lumbar Extensors in Chronic Low Back pain.
Lee, Kang Woo , Hwang, Ji Hye , Bang, Heui Je
Department of Physical Medicine and Rehabilitation, Samsung Medical Center, Korea.
만성 요통 환자에서의 요추부 신근의 등척성 근력 평가
이강우, 황지혜, 방희제
삼성의료원 재활의학과
Abstract

The purposes of this study were to measure the normal value of peak torque of lumbar extensors at various degrees of lumbar flexion and to compare this with the chronic low back pain patient. 100 normal subjects, 70 men(age, 49.0±5.3) and 30 women(age, 48.1±7.4), completed isometric lumbar extension strength test. 26 low back pain subjects, 9 men(age, 35.3±14.7) and 17 women(age, 42.6±10.1), completed isometric lumbar extension strength test. Normal male peak torques of lumbar extensors were 125±38 Ft-lbs at 0 degree, 164±43 at 12 degree, 200±43 at 24 degree, 221±46 at 36 degree, 241±50 at 48 degree, 257±50 at 60 degree, and 262±51 at 72 degree of lumbar flexion. Normal female peak torques of lumbar extensors were 78±24 at 0 degree, 105±27 at 12 degree, 120±38 at 24 degree, 135±35 at 36 degree, 142±37 at 48 degree, 151±40 at 60 degree, and 157±41 at 72 degree of lumbar flexion. Normal peak torques of lumbar extensors increase as degrees of lumbar flexion increase. Body weight is more correlated with peak torque than body mass index. Male peak torques of lumbar extensors with low back pain were 91±47 Ft-lbs at 0 degree, 129±46 at 12 degree, 156±57 at 24 degree, 178±61 at 36 degree, 197±54 at 48 degree, 217±61 at 60 degree, and 218±52 at 72 degree of lumbar flexion. Female peak torques of lumbar extensors with low back pain were 45±24 at 0 degree, 73±28 at 12 degree, 98±32 at 24 degree, 117±44 at 36 degree, 130±40 at 48 degree, 138±41 at 60 degree, and 148±36 at 72 degree of lumbar flexion. Peak torques of lumbar extensors with low back pain increase as degrees of lumbar flexion increase. Comparison of the normal male peak torque of lumbar extensors with low back pain group revealed statistical differences at 48 and 72 degree of lumbar extensors. And the female group revealed statistical difference at 0, 12, and 24 degree of lumbar flexion.

Key Words: Lumbar extension, Isometric strength, Low back pain


ABOUT
ARTICLE CATEGORY

Browse all articles >

BROWSE ARTICLES
AUTHOR INFORMATION
Terms of Use   |   Privacy Polity
Editorial Office
Department of Rehabilitation Medicine, Seoul National University Boramae Medical Center,
20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Korea
Tel: +82-10-8678-2671    Fax: +82-2-870-2679    E-mail: edit@e-arm.org
Business Registration: 110-82-07460                

Copyright © 2021 by Korean Academy of Rehabilitation Medicine.

Developed in M2PI

Close layer
prev next