Physical Activity in Hemodialysis Patients Measured by Triaxial Accelerometer.

Edimar Pedrosa Gomes,Gilberto Francisco Ferreira Filho,Bruno Do Valle Pinheiro,Erich Vidal Carvalho,Rogério Baumgratz De Paula,Daniel Rodrigues Teixeira,Maycon Moura Reboredo,Julio César Abreu De Oliveira,Júlio Maria Fonseca Chebli,Helady Sanders-Pinheiro,Laís Fernanda Caldi D’Ornellas Carvalho

doi:10.1155/2015/645645

Edimar Pedrosa Gomes, Gilberto Francisco Ferreira Filho + Show 9 more

Open Access

https://doi.org/10.1155/2015/645645

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Abstract

Different factors can contribute to a sedentary lifestyle among hemodialysis (HD) patients, including the period they spend on dialysis. The aim of this study was to evaluate characteristics of physical activities in daily life in this population by using an accurate triaxial accelerometer and to correlate these characteristics with physiological variables. Nineteen HD patients were evaluated using the DynaPort accelerometer and compared to nineteen control individuals, regarding the time spent in different activities and positions of daily life and the number of steps taken. HD patients were more sedentary than control individuals, spending less time walking or standing and spending more time lying down. The sedentary behavior was more pronounced on dialysis days. According to the number of steps taken per day, 47.4% of hemodialysis patients were classified as sedentary against 10.5% in control group. Hemoglobin level, lower extremity muscle strength, and physical functioning of SF-36 questionnaire correlated significantly with the walking time and active time. Looking accurately at the patterns of activity in daily life, HDs patients are more sedentary, especially on dialysis days. These patients should be motivated to enhance the physical activity.

Highlights

Sedentary lifestyle is considered a major risk factor for global mortality, especially for cardiovascular diseases, and to reduce this risk at least 30 minutes of daily moderate-intensity aerobic physical activity on five days each week is recommended [1]
Our objective was to compare physical activity in daily life in HD patients with control individuals, by using a triaxial accelerometer, and to investigate variables associated with inactivity
A total of 40 HD patients were initially assessed for eligibility

Summary

Introduction

Sedentary lifestyle is considered a major risk factor for global mortality, especially for cardiovascular diseases, and to reduce this risk at least 30 minutes of daily moderate-intensity aerobic physical activity on five days each week is recommended [1]. Despite the well-known benefits of physical activity, available data suggest that nearly 31% of the world’s population does not achieve the minimum recommended [2]. The few studies that have assessed the physical activity level among HD patients demonstrated that they are more sedentary than healthy individuals [7, 8]. The assessments were made by questionnaires or activity-related energy expenditure measurements, which provide inaccurate data [9, 10]. Physical activity can be evaluated more precisely using triaxial accelerometers that

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