Comparison of thoracic kyphosis degree, trunk muscle strength and joint position sense among healthy and osteoporotic elderly women: A cross-sectional preliminary study

Comparison of thoracic kyphosis degree, trunk muscle strength and joint position sense among healthy and osteoporotic elderly women: A cross-sectional preliminary study

Author Granito, Renata Neves Google Scholar
Aveiro, Mariana Chaves Autor UNIFESP Google Scholar
Muniz Renno, Ana Claudia Autor UNIFESP Google Scholar
Oishi, Jorge Google Scholar
Driusso, Patricia Google Scholar
Institution Universidade Federal de São Carlos (UFSCar)
Universidade Federal de São Paulo (UNIFESP)
Abstract Increased thoracic kyphosis is one of the most disfiguring consequences of osteoporotic spine fractures in the elderly. However, mechanisms involved in the increasing of the kyphosis degree among osteoporotic women are not completely understood. Then, the aims of this cross-sectional preliminary study were comparing thoracic kyphosis degree, trunk muscle peak torque and joint position sense among healthy and osteoporotic elderly women and investigating possible factors affecting the kyphosis degree. Twenty women were selected for 2 groups: healthy (n = 10) and osteoporotic (n = 10) elderly women. Bone mineral density (BMD), thoracic kyphosis degree, trunk muscles peak torque and joint position sense were measured. Differences among groups were analyzed by Student's Test T for unpaired data. Correlations between variables were performed by Pearson's coefficient correlation. the level of significance used for all comparisons was 5% (p <= 0.05). We observed that the osteoporotic women demonstrated a significantly higher degree of kyphosis and lower trunk extensor muscle peak torque. Moreover, it was found that the BMD had a negative correlation with the thoracic kyphosis degree. Kyphosis degree showed a negative correlation between extensor muscle strength and joint position sense index. This study suggests that lower BMD may be associated to higher degree of kyphosis degree, lower trunk extensors muscle strength and an impaired joint position sense. It is also suggested that lower extensor muscle strength may be a factor that contributes to the increasing in kyphosis thoracic degree. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
Keywords Osteoporosis
Thoracic kyphosis
Muscle strength
Bone mineral density
Joint position sense
Language English
Date 2012-03-01
Published in Archives of Gerontology and Geriatrics. Clare: Elsevier B.V., v. 54, n. 2, p. E199-E202, 2012.
ISSN 0167-4943 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent E199-E202
Origin http://dx.doi.org/10.1016/j.archger.2011.05.012
Access rights Closed access
Type Article
Web of Science ID WOS:000301647400036
URI http://repositorio.unifesp.br/handle/11600/34669

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