Effects of low-volume, high-intensity interval training on maximal oxygen consumption, body fat percentage and health-related quality of life in women with overweight: A randomized controlled trial

ABSTRACT: Background, Several investigations suggest that high-intensity interval training (HIIT) provokes larger changes in VO2max compared to moderate-intensity continuous training (MICT); other studies associate HIIT with significant decreases in total, abdominal and visceral fat mass. However, some meta-analyses express that the enhancements with HIIT on VO2max are slightly higher concerning MICT. These studies had low-to-moderate methodological quality, and the exercise protocols were completed mostly on treadmills or cycle ergometers. Thus, the objective of this study was to compare the effect of a low-volume HIIT versus a MICT program on VO2max, body fat percentage (BFP), and health-related quality of life (HRQoL) in overweight women. It followed a research protocol with high methodological rigor and good reporting quality. Methods After two physical adaptation weeks (run-in period), thirty-five volunteers were randomized to HIIT (n = 16) or MICT (n = 19). Both groups performed 24 sessions on a grass sports field (walking, jogging or running). The HIIT group completed 15 bouts of 30 s [90–95%, maximal heart rate (HRmax)], while the MICT group completed 30 min of continuous exercise (65–75% HRmax). Results The difference between HIIT and MICT post-intervention on VO2max was not statistically significant (0.8 ml/kg/min. CI 95%, −1.0 to 2.7, p = 0.37). Similarly, no statistically significant differences were found between groups for BFP and HRQoL. Conclusions Low-volume HIIT program has no quantitative advantage compared with that resulting from MICT, in VO2max, BFP, and HRQoL. ClinicalTrials.gov Identifier: NCT03300895.

• Autores: Arboleda Serna, Víctor Hugo; Patiño Villada, Fredy Alonso; Pinzón Castro, Deiber Armando
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2022
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/26195
• Acceso en línea: http://hdl.handle.net/10495/26195
• Palabra clave: Entrenamiento de Intervalos de Alta Intensidad; High-Intensity Interval Training; Ejercicio Físico; Exercise; Capacidad Cardiovascular; Cardiorespiratory Fitness; Tejido Adiposo; Adipose Tissue; Calidad de Vida; Quality of Life; Ensayo Clínico Controlado Aleatorio; Randomized Controlled Trial
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc-nd/2.5/co/