Study of the Relation Between Body Weight and Functional Limitations and Pain in Patients with Knee Osteoarthritis

Overview

Journal Einstein (Sao Paulo)

Specialty General Medicine

Date 2017 Nov 2

PMID 29091152

Citations 6

Authors

Fabio Marcon Alfieri

Natalia Cristina de Oliveira Vargas E Silva

Linamara Rizzo Battistella

Affiliations

Soon will be listed here.

Abstract

Objective: To assess the influence of the body weight in functional capacity and pain of adult and elderly individuals with knee osteoarthritis.

Methods: The sample consisted of 107 adult and elderly patients with knee osteoarthritis divided into two groups (adequate weight/adiposity and excessive weight/adiposity) according to body mass index and percent of body fat mass, assessed by electric bioimpedance. Subjects were evaluated for functional mobility (Timed Up and Go Test), pain, stiffness and function (Western Ontario and MacMaster Universities Osteoarthritis Index - WOMAC), pain intensity (Visual Analogue Scale - VAS) and pressure pain tolerance threshold (algometry in vastus medialis and vastus lateralis muscles). Data were analyzed with Statistical Package of the Social Sciences, version 22 for Windows. Comparisons between groups were made through Student's t test, with significance level set at 5%.

Results: There was predominance of females in the sample (81.3%), and mean age was 61.8±10.1 years. When dividing the sample by both body mass index and adiposity, 89.7% of them had weight/adiposity excess, and 59.8% were obese. There was no difference between groups regarding age, pain intensity, pressure pain tolerance threshold, functional mobility, stiffness and function. However, pain (WOMAC) was higher (p=0.05) in the group of patients with weight or adiposity excess, and pain perception according to VAS was worse in the group of obese patients (p=0.05).

Conclusion: Excessive weight had negative impact in patients with osteoarthritis, increasing pain assessed by WOMAC or VAS, although no differences were observed in functionality and pressure pain tolerance.

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