Improvement in trunk kinematics after treadmill-based reactive balance training among older adults is strongly associated with trunk kinematics before training

JOURNAL OF BIOMECHANICS

卷:113

Article

Aviles, Jessica¹  Wright, David L.²  Allin, Leigh J.¹  Alexander, Neil B.^3,4  Madigan, Michael L.^1,5 

[1] Virginia Tech, Dept Biomed Engn & Mech 0298, Blacksburg, VA 24061 USA

[2] Texas A&M Univ, Dept Hlth & Kinesiol 4243, College Stn, TX 77843 USA

[3] Univ Michigan, Dept Internal Med, Div Geriatr & Palliat Med, Ann Arbor, MI 48109 USA

[4] Vet Affairs Ann Arbor Hlth Care Syst, Geriatr Res Educ & Clin Ctr, Ann Arbor, MI 48105 USA

[5] Virginia Tech, Grado Dept Ind & Syst Engn 0118, Blacksburg, VA 24061 USA

关键词: Falls;    Aging;    Dynamic balance;    Step training;    Perturbation-based balance training;   

DOI  :  10.1016/j.jbiomech.2020.110112

来源: Elsevier

【 摘 要 】

Reactive balance training (RBT) is an emerging fall prevention exercise intervention for older adults. To better understand factors that influence improvements after RBT, the goal of this study was to identify key factors that strongly associate with training-induced improvements in reactive balance. This study is a secondary analysis of data from a prior study. Twenty-eight residents of senior housing facilities participated, including 14 RBT participants and 14 Tai Chi participants (controls). Before and one week after training, participants completed balance and mobility tests and a reactive balance test. Reactive balance was operationalized as the maximum trunk angle in response to standardized trip-like perturbations on a treadmill. Bivariate (Pearson) correlation was used to identify participant characteristics before RBT and measures of performance during RBT that associated with training-induced changes in maximum trunk angle. Maximum trunk angle before reactive balance training exhibited the strongest association with training-induced changes in maximum trunk angle among RBT participants (r(2) = 0.84; p < .001), but not among Tai Chi participants (r(2) = 0.17; p = .138). Measures of performance during RBT, based upon perturbation speed, also associated with RBT-induced improvements in maximum trunk angle. These results help clarify the characteristics of individuals who can benefit from RBT, and support the use of treadmill perturbation speed as a surrogate measure of training-induced improvements in trunk kinematics. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

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