Strength training improves body composition, muscle strength and increases CD4+ T lymphocyte levels in people living with HIV/AIDS.

José Garcia De Brito-Neto,Dayane Carla Costa Paiva,Christiane Medeiros Bezerra,Valéria Duarte De Almeida,Thales Allyrio Araújo De Medeiros Fernandes,Ivana Alice Teixeira Fonseca,Ellany Gurgel Cosme Do Nascimento,Nickson Melo De Morais,Micássio Fernandes De Andrade,José Veríssimo Fernandes

doi:10.4081/idr.2019.7925

Abstract

The establishment of physical training programs for people living with HIV/AIDS (PLWHA) has several benefits. The study aimed to analyze the effect of resistance training using prediction of intensity by subjective perception of effort (SPE) on body composition, muscle strength, and TCD4+ lymphocyte levels in PLWHA. This a randomized controlled trial study. Participants (11 men and 8 women), were divided in two groups: exercise group (EG) and control group (CG). The EG was submitted to 12 weeks of a resistance-training program based in the prediction of intensity by SPE. Body mass percentages were evaluated using tetrapolar bioelectrical impedance and skinfold methods. We used Flow Cytometry to quantify CD4+ T lymphocytes. Patients showed significant changes in Body Fat Percentage (Δ%=-6.23%), Lean Body Mass (Δ%=2.45%), and CD4T lymphocytes levels (Δ%=15.77%). They also showed significant increase in muscular strength presented in the test for one repetition maximum in all the evaluated exercises. Our data suggest that exercising program prescribed by SPE is capable of improving immune function, body composition, and muscular strength in PLWHA.

Highlights

The practice of physical activity has been essential for the prevention of physical and emotional disorders and maintenance of better quality of life in individuals with chronic diseases
The reduction in fat percentage was probably obtained as a result of the mechaly nisms of metabolic adaptation observed in individuals without HIV, where n a mobilization of the lipid reserves of the o organism is observed in order to restore glycogen stores, both muscular and hepatic, e during the rest periods between training sess sions.[12]
Among the possibilities of scales, u already validated for use in resistance trainl ing, we opted for the intensity prescription ia through the subjective perception of effort (SPE), using the OMNI-RES

Summary

Introduction

The practice of physical activity has been essential for the prevention of physical and emotional disorders and maintenance of better quality of life in individuals with chronic diseases. Resistance training uses the muscular framework to perform specific movements with overloads, with the purpose of generating physiological adaptations. This type of training can be used as a resource to reduce the depletion of muscle functionality due to its chronic effects.[1]. The prescription of intensity of the loads in resistance exercises is one of the most impressive factors to guarantee the results on muscular hypertrophy.

Experimental procedures

Findings

Discussion