Avaliação do esforço físico e atividade muscular na manobra de reanimação cardiopulmonar em sistema de suspensão corporal
Keywords:
Cardiopulmonary Resuscitation, Weightlessness Simulation, Physical Exertion, Electromyography.Abstract
RESUMO: Atualmente, o turismo e novos projetos espaciais criam a oportunidade de mais seres humanos serem colocados em órbita, mas uma das principais preocupações é a ocorrência de possíveis complicações cardíacas em ambiente extraterrestre. Sendo assim, o objetivo deste estudo foi investigar o esforço físico percebido (EB), a frequência cardíaca (FC), a profundidade das compressões torácicas e a ativação de grupos musculares primários à manobra de ressuscitação cardiopulmonar (RCP) Evetts-Russomano em 20 indivíduos saudáveis, com 25,5±6,5 anos através de um sistema de suspensão corporal. Como resultado, foi visto um declínio da profundidade das compressões torácicas do ambiente de gravidade terrestre (1Gz) para a hipogravidade simulada de 0,38Gz (HipoG) e de HipoG para o ambiente simulado de microgravidade (MicroG); um aumento do EB e da FC à medida que a gravidade diminuía; e uma ativação muscular sem diferença estatística entre HipoG e MicroG. PALAVRAS-CHAVE: Ressuscitação Cardiopulmonar; Simulação de ausência de Peso; Esforço Físico; Eletromiografia. ABSTRACT: Space tourism and new space projects have created opportunities for more people to go into orbit; however, a major concern is the occurrence of possible cardiac complications in extraterrestrial environments. Therefore, the aim of this study is to investigate the perceived physical exertion (BS), heart rate (HR), chest compression depth, and the activation of primary muscle groups needed for the performance of the Evetts-Russomano cardiopulmonary resuscitation technique (CPR) by 20 healthy male volunteers, with a mean age of 25.5±6.5 years, using a body suspension system. The results show a decline in chest compression depth from Earth's gravity (1Gz) to simulated hypogravity (HypoG, 0.38Gz), and a continued decline from HypoG to simulated microgravity (MicroG); an increase in BS and HR as gravity decreases; and a muscle activation that showed no significant difference between HypoG and MicroG.
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