Estudo comparativo da rigidez arterialentre diferentes tipos de treino em adultos jovens saudáveis

Abstract

Pupose: To compare AS indexes between recreational practitioners of aerobic training (i.e. running), resistance training (i.e. strength training), high intensity interval training (HIIT) (i.e. CrossFit), and non-regular exercise participants (i.e. sedentarians). Methodology: For the training groups, 60 young male adults (24.99 ± 3.29 years), recreationly practitioners of only one exercise modality were invited to constituted the training groups from sports clubs and fitness centers [running group (RunG)= N: 20; strenght training group (STG)= N: 20; HIIT group (CFitG)= N: 20). Additionally, 20 male students from the University of Porto (25.35 ± 2.94 years) were invited to constitute the sedentary group (SedG). There were collected data on AS [(carotid-femoral pulse wale velocity (cfPWV), augmentation index (Alx), augmentation index corrected by 75 bpm (Alx@75bpm)], maximal oxygen consumprtion (VO2 max) and body composition. Results: The AR differences between groups were not significant (cfPW = SedG: 9.06 ± 0.24 m/s; RunG: 8.93 ± 0.23 m/s; STG: 8.62 ± 0.23 m/s; CFitG: 8.83 ± 0.23 m/s; p> 0.05). The RunG (62.07 ± 1.31 ml/kg/min) showed significantly higher VO2max values compared to the SedG (44.02 ± 1.39 ml/kg/min, p = 0.001), STG (50.42 ± 1.32 ml/kg/min, p <0.001) and CFitG (51.98 ± 1.33 ml/kg/min, p <0.001). Regarding body composition, SedG (53.25 ± 0.70 kg) showed significantly lower lean mass value compared to the RunG (57.46 ± 0.67 kg, p <0.001) and CFitG (57.36 ± 0.63 kg, p <0.001) groups. The SedG (18.37 ± 0.68 kg) also showed significantly higher fat mass mean values compared to RunG (14.02 ± 0.65 kg, p <0.001) and CFitG (14.16 ± 0.62 kg, p <0.001) groups. Conclusions: In young adults, arterial compliance does not appear to be different in accondance with different training modalities. However, aerobic training is related to better results in cardiorespiratory fitness and body composition.