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- W2991536957 abstract "Introduction: Aerobic exercise generates increased cardiorespiratory fitness (CF), which results in a protective factor for cardiovascular disease. High-intensity interval training (HIIT) might cause higher increases on CF in comparison with moderate-intensity continuous training (MICT); nevertheless, current evidence is not conclusive. Objective: To compare the effects of a low-volume HIIT and a MICT on maximal oxygen consumption (VO 2max ), systolic blood pressure (SBP), and diastolic blood pressure (DBP) during a period of eight weeks in healthy men between 18-44 years of age. Materials and methods : A randomized controlled trial was conducted. Forty-four volunteers were randomized to HIIT (n=22) or MICT (n=22). Both groups performed 24 sessions on a treadmill. The HIIT group completed 15 bouts of 30 seconds [90-95%, maximal heart rate (HR max )], while the MICT group completed 40 minutes of continuous exercise (65-75% HR max ). Results : Intra-group analysis showed an increase in VO 2max of 3.5 ml/kg/min. [confidence interval (CI) 95%, 2.02 to 4.93; p=0.0001] in HIIT and 1.9 ml/kg/min. (CI 95%, -0.98 to 4.82; p=0.18) in MICT. However, the difference between the two groups was not statistically significant (1.01 ml/kg/min. IC 95%, -2.16 to 4.18, p=0.52). MICT generated a greater reduction in SBP compared to HIIT [median 8 mmHg (p<0.001)]. Finally, no statistically significant differences were found between the groups for DBP. Conclusions : Results indicate no significant change in VO 2max was observed with a low-volume HIIT protocol versus MICT after 24 sessions. In contrast, MICT provided a greater reduction in SBP compared to HIIT. This study is registered as a clinical trial via ClinicalTrials.gov with identifier number: NCT02288403" @default.
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- W2991536957 date "2019-01-01" @default.
- W2991536957 modified "2023-09-26" @default.
- W2991536957 title "Efecto del entrenamiento por intervalos de alta intensidad comparado con continúo moderado sobre el consumo máximo de oxígeno y la presión arterial en hombres sanos: ensayo clínico aleatorio" @default.
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