Trunk muscle function and anterior and posterior limits of stability in community-dwelling older adults

Author(s)

Forestieri Faccio, Andrea Fernanda ^[1] ; Porto, Jaqueline Mello ^[1] ; Freire Junior, Renato Campos ^[2] ; Medeiros de Oliveira, Bruna Garcia ^[1] ; Carvalho de Abreu, Daniela Cristina ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Hlth Sci, Rehabil & Funct Performance Program, Lab Assessment & Rehabil Equilibrium LARE, Ribeira, Bandeirantes Ave 3900, BR-14049900 Ribeirao Preto, SP - Brazil

^[2] Fed Univ Amazonas UFAM, Fac Phys Educ & Physiotherapy, Gen Rodrigo Octavio Ave 6200, BR-69080900 Manaus, Amazonas - Brazil

• Document type: Journal article
• Source: JOURNAL OF BODYWORK AND MOVEMENT THERAPIES; v. 28, p. 212-218, OCT 2021.
• Web of Science Citations: 0

Abstract

Background: Understanding of the influence of trunk muscles on the older adult's limit of stability (LOS) is important for clinical practice. Objective: To compare the anterior and posterior LOS and the flexor and extensor trunk muscle function; verify the association of trunk muscles and LOS, and the association of LOS and the previous falls of community-dwelling older adults. Methods: Sample characterization data, trunk muscle function (peak torque PT and torque steadiness TS), LOS and previous falls (6 months) were collected from 79 older people. Comparisons were made between the variables of the anterior/posterior LOS (Reaction time, Movement velocity, Maximum excursion, Directional control), between trunk extensors/flexors muscle function and between TS at 10% and at 50%. Associations were made between the anterior/posterior LOS and the number of previous falls and between LOS and trunk muscle function. Results: The posterior LOS was worse than the anterior LOS, except for the reaction time. The flexor muscles obtained a lower PT, but better performance in TS. The TS at 10% of the trunk extensor was associated with the posterior directional control (p = 0.032). There was no association between trunk muscle function and the anterior LOS, or between previous falls and LOS. Conclusions: The older adults presented worse performance in the posterior LOS and worse TS in the trunk extensor muscles, although the trunk extensor muscles presented a higher PT. Although no association between LOS and previous falls, the better the TS at 10% of the trunk extensors, better posterior directional control. (C) 2021 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 13/23344-7 - Muscle function of the hip and trunk and its influence on postural control while performing tasks static and dynamic in the elderly
• Grantee: Jaqueline Mello Porto
• Support Opportunities: Scholarships in Brazil - Master