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European Spine Journal

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01-07-2014 | Original Article

Impact of spinal alignment and back muscle strength on shoulder range of motion in middle-aged and elderly people in a prospective cohort study

Authors: Shiro Imagama, Yukiharu Hasegawa, Norimitsu Wakao, Kenichi Hirano, Akio Muramoto, Naoki Ishiguro

Published in: European Spine Journal | Issue 7/2014

Abstract

Purpose

The relationship between spine and shoulder motion has not been well evaluated. The purpose of this study was to clarify the relationships among thoracic kyphosis and lumbar lordosis, spinal range of motion (ROM), spinal alignment and shoulder ROM.

Methods

Evaluation of spinal alignment was prospectively conducted in 317 subjects (114 males and 203 females, the average age: 67 years) who attended a public health checkup. Shoulder ROM with an angle meter and shoulder pain were evaluated. Thoracic kyphosis angle, lumbar lordosis angle, thoracic ROM, lumbar ROM and spinal inclination angle were measured using SpinalMouse^®. The relationships of these factors with grip strength, back muscle strength, physical ability, osteoporosis and body mass index were examined and multivariate logistic regression analysis was performed to identify the risk factors for limited shoulder ROM.

Results

Limited shoulder flexion was found in 35 patients (11 %) and limited abduction in 50 patients (16 %). In multivariate logistic regression analyses adjusted for age, shoulder pain and other parameters, increased thoracic kyphosis angle and increased spinal inclination angle were risk factors for limited shoulder flexion (p < 0.05). Increased thoracic kyphosis angle and weak back muscle strength were also determined as risk factors for limited shoulder abduction (p < 0.05).

Conclusions

This study provides the first evidence that increased thoracic kyphosis, increased spinal inclination and weak back muscle strength are the risk factors for limited shoulder ROM. These results suggest that maintenance of spinal alignment and back muscle strength may be important for better shoulder ROM.

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Title: Impact of spinal alignment and back muscle strength on shoulder range of motion in middle-aged and elderly people in a prospective cohort study
Authors: Shiro Imagama
Yukiharu Hasegawa
Norimitsu Wakao
Kenichi Hirano
Akio Muramoto
Naoki Ishiguro
Publication date: 01-07-2014
Publisher: Springer Berlin Heidelberg
Published in: European Spine Journal / Issue 7/2014
Print ISSN: 0940-6719
Electronic ISSN: 1432-0932
DOI: https://doi.org/10.1007/s00586-014-3251-9

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Impact of spinal alignment and back muscle strength on shoulder range of motion in middle-aged and elderly people in a prospective cohort study

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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