Thoracic Kyphosis Affects Spinal Loads and Trunk Muscle Force

Author:

Briggs Andrew M1,van Dieën Jaap H2,Wrigley Tim V3,Greig Alison M4,Phillips Bev5,Lo Sing Kai6,Bennell Kim L7

Affiliation:

1. AM Briggs, BSc(PT)Hon, PhD, was a doctoral candidate at the Centre for Health, Exercise and Sports Medicine, School of Physiotherapy and the Department of Medicine, Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia. Dr Briggs is currently a project manager in the Department of Epidemiology and Preventive Medicine, Monash University, Australia

2. JH van Dieën, PhD, is Professor of Biomechanics, Institute for Fundamental and Clinical Human Movement Sciences, Faculty of Human Movement Sciences, Vrije Universiteit, Amsterdam, the Netherlands

3. TV Wrigley, BSc(Hon), MSc, is Director of Laboratories, Centre for Health, Exercise and Sports Medicine, School of Physiotherapy, University of Melbourne

4. AM Greig, BHK, BSc(PT)Hon, PhD, was a doctoral candidate at the Centre for Health, Exercise and Sports Medicine, School of Physiotherapy, and the Department of Medicine, Royal Melbourne Hospital, University of Melbourne. Dr Greig is MPT Program Co-ordinator, School of Rehabilitation Sciences, University of British Columbia, Vancouver, British Columbia, Canada

5. B Phillips, DipPhysio, PGDipHlthSci, PhD, is Associate Professor of Allied Health, La Trobe University, Ballarat Health Services, Melbourne, Victoria, Australia

6. SK Lo, PhD, is Associate Dean (Research), Deakin University, Burwood, Victoria, Australia

7. KL Bennell, BAppSci(PT), PhD, is Professor of Physiotherapy, Centre for Health, Exercise and Sports Medicine, School of Physiotherapy, University of Melbourne

Abstract

Background and Purpose Patients with increased thoracic curvature often come to physical therapists for management of spinal pain and disorders. Although treatment approaches are aimed at normalizing or minimizing progression of kyphosis, the biomechanical rationales remain unsubstantiated. Subjects Forty-four subjects (mean age [±SD]=62.3±7.1 years) were dichotomized into high kyphosis and low kyphosis groups. Methods Lateral standing radiographs and photographs were captured and then digitized. These data were input into biomechanical models to estimate net segmental loading from T2–L5 as well as trunk muscle forces. Results The high kyphosis group demonstrated significantly greater normalized flexion moments and net compression and shear forces. Trunk muscle forces also were significantly greater in the high kyphosis group. A strong relationship existed between thoracic curvature and net segmental loads (r =.85–.93) and between thoracic curvature and muscle forces (r =.70–.82). Discussion and Conclusion This study provides biomechanical evidence that increases in thoracic kyphosis are associated with significantly higher multisegmental spinal loads and trunk muscle forces in upright stance. These factors are likely to accelerate degenerative processes in spinal motion segments and contribute to the development of dysfunction and pain.

Publisher

Oxford University Press (OUP)

Subject

Physical Therapy, Sports Therapy and Rehabilitation

Cited by 157 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3