Márcio R Oliveira1, Edgar R Vieira2, André W O Gil3, Denilson C Teixeira3, Cesar F Amorim4, Rubens A da Silva5. 1. Laboratory of Functional Evaluation and Human Motor Performance (LAFUP) - UNOPAR, Professional Master's in Physical Exercise in Health Promotion, 675 Paris Ave., CEP 86041-120, Londrina, PR, Brazil. 2. Department of Physical Therapy, Florida International University (FIU), Physical Therapy & Neuroscience Departments, 17 Wertheims' Colleges of Nursing and Health Sciences & Medicine, 11200 SW 8th St., AHC3-18 430, Miami, FL, USA. 3. Department of Physical Education. Universidade Estadual de Londrina, (UEL) Rodovia Celso Garcia Cid, Km 380, s/n15, Campus Universitário, Londrina, PR, 86057-970, Brazil. 4. Department of Physical Therapy, Florida International University (FIU), Physical Therapy & Neuroscience Departments, 17 Wertheims' Colleges of Nursing and Health Sciences & Medicine, 11200 SW 8th St., AHC3-18 430, Miami, FL, USA; Physical Therapy Master's Program, Universidade Cidade de São Paulo (UNICID), R. Cesário Galero, 448/475 - Tatuapé, São Paulo, SP, 03071-000, Brazil. 5. Laboratory of Functional Evaluation and Human Motor Performance (LAFUP) - UNOPAR, Professional Master's in Physical Exercise in Health Promotion, 675 Paris Ave., CEP 86041-120, Londrina, PR, Brazil; Département des Sciences de la Santé, Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Centre de recherche Intersectoriel en santé durable - UQAC, Laboratoire de recherche BioNR - UQAC, Saguenay, Québec, Canada. Electronic address: rubens.dasilva@uqac.ca.
Abstract
Taking the average of different trials is recommended for better balance assessment, but few studies have really proven this point under different balance conditions. OBJECTIVE: To assess the effects of averaging trials of five different balance tasks on postural control measures in older women. METHODS: A total of 90 older women (means: Age: 68 years; Weight: 67 kg; Height: 1.56 m; Body mass index, 27 kg/m2) participated in this study. The participants completed five balance tasks with three performance trials for each task on a force platform in random order. The participants completed a total of three 30-s trials of tasks with 30 s of rest between trials. Repeated measure ANOVA and coefficient of variation were computed to compare differences for one trial vs. averaging across two or three trials on center of pressure (COP) sway values. RESULTS: There were no significant differences (P > 0.05) in COP sway values when comparing one vs. the average of two or three trials for all balance tasks. However, the coefficient of variation was higher for three trials (10-40%) than two (6-37%) or one trial (3-23%) for COP parameters. CONCLUSIONS: Based on reduction of variability, the present study recommends the averaging of a minimum of two trials for balance assessment in older women. The results of the current study have implications for balance assessment in older people in fall prevention programs.
Taking the average of different trials is recommended for better balance assessment, but few studies have really proven this point under different balance conditions. OBJECTIVE: To assess the effects of averaging trials of five different balance tasks on postural control measures in older women. METHODS: A total of 90 older women (means: Age: 68 years; Weight: 67 kg; Height: 1.56 m; Body mass index, 27 kg/m2) participated in this study. The participants completed five balance tasks with three performance trials for each task on a force platform in random order. The participants completed a total of three 30-s trials of tasks with 30 s of rest between trials. Repeated measure ANOVA and coefficient of variation were computed to compare differences for one trial vs. averaging across two or three trials on center of pressure (COP) sway values. RESULTS: There were no significant differences (P > 0.05) in COP sway values when comparing one vs. the average of two or three trials for all balance tasks. However, the coefficient of variation was higher for three trials (10-40%) than two (6-37%) or one trial (3-23%) for COP parameters. CONCLUSIONS: Based on reduction of variability, the present study recommends the averaging of a minimum of two trials for balance assessment in older women. The results of the current study have implications for balance assessment in older people in fall prevention programs.
Authors: Alejandra Mondino; Grant Wagner; Katharine Russell; Edgar Lobaton; Emily Griffith; Margaret Gruen; B Duncan X Lascelles; Natasha Jane Olby Journal: PLoS One Date: 2022-07-08 Impact factor: 3.752
Authors: Mohamed Abdelhafid Kadri; Marianne Violette; Mathieu Dallaire; Fábio Carlos Lucas de Oliveira; Martin Lavallière; Suzy Ngomo; Louis-David Beaulieu; Christian Larivière; Rubens A da Silva Journal: J Man Manip Ther Date: 2021-01-01