Postural responses to a suddenly released pulling force in older adults with chronic low back pain: An experimental study

Pei Yun Lee, Sang I. Lin, Yu Ting Liao, Ruey Mo Lin, Che Chia Hsu, Kuo Yuan Huang, Yi Ting Chen, Yi Ju Tsai

研究成果: Article

2 引文 斯高帕斯(Scopus)

摘要

Chronic low back pain (CLBP), one of the most commonmusculoskeletal conditions in older adults, might affect balance and functional independence. The purpose of this study was to investigate the postural responses to a suddenly released pulling force in older adults with and without CLBP. Thirtycommunity-dwelling older adults with CLBP and 26 voluntary controls without CLBP were enrolled. Participantswere required to stand on a force platformwhile, with one hand, they pulled a string that was fastened at the other end to a 2-kg or to a 4-kg force in the opposite direction at a random order. The number of times the participants lost their balance and motions of center of pressure (COP) when the string was suddenly released were recorded. The results demonstrated that although the loss of balance rates for each pulling force condition did not differ between groups, older adults with CLBP had poorer postural responses: delayed reaction, larger displacement, higher velocity, longer path length, and greater COP sway area compared to the older controls. Furthermore,both groups showed larger postural responses in the 4-kg pulling force condition. Although aging is generally believed to be associated with declining balance and postural control, these findings highlight the effect of CLBP on reactive balance when responding to an externally generated force in an older population. This study also suggests that, for older adults with CLBP, in addition to treating them for pain and disability, reactive balance evaluation and training, such as reaction and movement strategy training should be included in their interventions. Clinicians and older patients with CLBP need to be made aware of the significance of impaired reactive balance and the increased risk of falls when encountering unexpected perturbations.

原文English
文章編號e0162187
期刊PloS one
11
發行號9
DOIs
出版狀態Published - 2016 九月

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

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