High-Intensity Interval Training and Isocaloric Moderate-Intensity Continuous Training Result in Similar Improvements in Body Composition and Fitness in Obese Individuals

Abstract

This study aimed to determine the effects of 12 weeks of isocaloric programs of high-intensity intermittent training (HIIT) or moderate-intensity continuous training (MICT) or a short-duration HIIT (1/2HIIT) inducing only half the energy deficit on a cycle ergometer, on body weight and composition, cardiovascular fitness, resting metabolism rate (RMR), respiratory exchange ratio (RER), nonexercise physical activity (PA) levels and fasting and postprandial insulin response in sedentary obese individuals. Forty-six sedentary obese individuals (30 women), with a mean BMI of 33.3 ± 2.9 kg/m2 and a mean age of 34.4 ± 8.8 years were randomly assigned to one of the three training groups: HIIT (n = 16), MICT (n = 14) or 1/2HIIT (n = 16) and exercise was performed 3 times/week for 12 weeks. Overall, there was a significant reduction in body weight, waist (p < .001) and hip (p < .01) circumference,, trunk and leg fat mass (FM; p < .01) and an increase in trunk and leg fat free mass (FFM; p < .01) and cardiovascular fitness (VO2max in ml/kg/min; p < .001) with exercise. However, no significant differences were observed between groups. There was no significant change in RMR, RER, nonexercise PA levels, fasting insulin or insulin sensitivity with exercise or between groups. There was a tendency for a reduction in AUC insulin with exercise (p = .069), but no differences between groups. These results indicate that isocaloric training protocols of HIIT or MICT (or 1/2HIIT inducing only half the energy deficit) exert similar metabolic and cardiovascular improvements in sedentary obese individuals.

Role or Synergistic Interaction of Adenosine and Vitamin D3 Alongside High-Intensity Interval Training and Isocaloric Moderate Intensity Training on Metabolic Parameters: Protocol for an Experimental Study (Preprint)

“…Regardless of the benefits of physical activities in improvement of obesity, there are inconsistent findings with regards to decrease in fat indices through participation in physical activities without calorie restriction. In addition, there are limited number of studies on the significance of calorie consumption based on exercise training volume in contrast to response to different types of training, leading to the same changes in metabolic conditions of obesity induced high fat diet with participation in HIIT and isocaloric MIT program as observed earlier [36].…”

Efeito do treinamento intervalado de alta intensidade versus treinamento contínuo na composição corporal: uma revisão sistemática com meta-análise

“…Sete estudos avaliaram secundariamente [31][32][33][34][35][36][37] e cinco estudos tiveram controle alimentar 26,29,30,33,37 .…”

“…Dos estudos incluídos, apenas 13 estudos analisaram à composição corporal em relação ao percentual de gordura, os métodos de análises incluiram: quatro estudos avaliaram pelo método de bioimpedância 23,27,34,35 ; nove estudos através da absorciometria por dupla emissão de raio-x (DEXA) 1,26,[28][29][30][31]33,36,37 . Dentre os desfechos antropometricos 13 estudos incluíram a massa corporal total; 12 avaliaram o índice de massa corporal e apenas oito estudos avaliaram a CC, conforme pode ser visto na Tabela 1.…”

Effects of high intensive training on body composition of women

“…-Visoko intenzivni trening i telesni sastav žena 2017. Fakultet za sport i turizam, Novi Sad, TIMS Acta 11,[53][54][55][56][57][58][59][60][61][62][63][64] Smith, Sommer, Starkoff, & Devor, 2013) su obuhvatile ispitanike muškog pola i ženskog pola, 14 studija (Grant, Todd, Aitchison, Kelly, & Stoddart, 2004;Edge, Bishop, & Goodman, 2006;Talanian, Galloway, Heigenhauser, Bonen, & Spriet, 2007;Trapp et al, 2008;Irving, Davis, Brock, Weltman, Swift, Barrett, Weltman et al, 2008;Stasiulis, Mockiene, Vizbaraite, & Mockus, 2010;Seo et al, 2011;Paolillo et al, 2011;Ha & So, 2012;Sijie, Hainai, Fengying, & Jianxiong, 2012;Gillen, Percival, Ludzki, Tarnopolsky, & Gibala, 2013;Roessler, Birkebaek, Ravn, Andersen, & Glintborg, 2013;Martins et al, 2016; SmithRyan, Trexler, Wingfield, & Blue, 2016) Ukupan broj ispitanika obuhvaćen ovom studijom bio je 469, od čega je 76 ispitanika bilo muškog pola, 393 ženskog, dok kod 55 ispitanika nije predstavljen broj muškaraca i žena u okviru studije. Sedam studija (Osei-Tutu & Campagna, 2005;Burgomaster, Howarth, Phillips, Rakobowchuk, MacDonald et al, 2008;Macpherson, Hazell, Olver, Paterson, & Lemon, 2011;Dunham & Harms, 2012;Hottenrott, Ludyga, & Schulze, 2012 Trčanje je bilo najzastupljeniji oblik vežbanja u toku trening programa.…”