摘要：Soares BRA, Neves RVP, Olher RR, Souza LHR, Santos LCS, Condé RBK, Melo GLR, Ferreira AP, Ernesto C, Oliveira JF, Rosa TS, Moraes MR. Cardiovascular Responses to Maximal Voluntary Contraction in Different Muscle Mass in Young Men. JEPonline 2019;22(1):51-62. The purpose of this study was to evaluate the cardiovascular responses in young trained men submitted to two tests of maximal voluntary isometric contraction (MVIC) with different muscle mass. Thirty-seven men (age, 25 ± 4 yrs) with experience in strength training (ST) performed two maximal effort tests: (a) isometric handgrip (IHG); and (b) isometric leg press (ILP). Three 5-sec contractions were performed with a 3-min pause between each contraction. Blood pressure (BP) and heart rate (HR) were measured at rest, during, and between trials and recovery at 5 min and 10 min. Mean arterial pressure (MAP), rate-pressure product (RPP), and pulse pressure (PP) were calculated. The increase in HR (P=0.0004) and RPP (P=0.0032) were more expressive for the ILP test when compared to IHG. There was no difference for the other cardiovascular parameters. Our findings demonstrate that in young people with ST experience undergoing MVIC testing involving large muscle mass, HR and RPP may be better markers than BP for measuring cardiovascular stress.
