Correlação entre exercício aeróbico intradialítico, associado ou não à eletroestimulação neuromuscular, e a qualidade da hemodiálise de portadores de Doença Renal Crônica
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Introdução: Indivíduos com Doença Renal Crônica (DRC) em hemodiálise (HD) apresentam reduzida capacidade funcional, e a prática de exercícios intradialíticos tem sido usada para amenizar essa complicação. Objetivo: Avaliar a correlação entre exercício aeróbico intradialítico, associado ou não à eletroestimulação neuromuscular (EENM), e a qualidade da HD. Métodos: Ensaio clínico randomizado, que submeteu indivíduos com DRC a exercício intradialítico utilizando cicloergômetro em membro inferior e EENM de membro superior ativa no grupo de intervenção (GI) ou placebo no grupo controle (GC). Os desfechos avaliados foram índice Kt/V (índice que avalia a adequação da HD), número de ciclos pedalados, distância percorrida e frequência cardíaca (FC). Os grupos foram comparados e a correlação foi feita entre o Kt/V e as variáveis: ciclos pedalados, distância percorrida, delta FCF-I (diferença entre FC final e FC inicial da intervenção), delta FCciclo (diferença entre FC final e FC inicial do cicloergômetro), FC pico (maior valor da FC durante o cicloergômetro). Resultados: Incluídos 5 participantes no GI e 4 no GC. Durante o exercício, aumentou a FC no GI e reduziu a pressão arterial sistólica no GC. Ademais, GC realizou números maiores de ciclos pedalados e da distância percorrida (p<0,05). Ainda, delta FCF-I e FC pico foram maiores no GI. Houve uma fraca correlação positiva significativa no GI (r=0,21; p=0,03) entre delta FCciclo e Kt/V. Conclusão: O exercício aeróbico intradialítico associado à EENM teve uma fraca correlação positiva entre Kt/V e delta FCciclo.
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