title: Effect of supramaximal exercise training on metabolic outcomes in obese adults.
abstract: The purpose of this study was to evaluate the effects of 6 weeks of supramaximal exercise training (SET) on performance variables and metabolic changes in sedentary obese adults. Twenty-four obese adults were randomly allocated into a non-trained (NT) [n = 12; body mass index (BMI) = 33(3)] and SET group [n = 12; BMI = (33(2)]. After baseline metabolic and fitness measurements, the participants completed a 6-week SET intervention. Metabolic, anthropometric, and fitness assessments were repeated post-intervention. For SET, fasting glucose (4.64(0.15) vs. 4.32(0.22) mmol · l-1; P < 0.01), insulin (23.2(4.6) vs. 13.8(3.3) µmol · ml-1; P < 0.01), homoeostasis model assessment-insulin resistance index (4.78(1.2) vs. 2.65(1.5); P < 0.01) and systolic blood pressure (127(3) vs. 120(3) mmHg; P < 0.01) were significantly lower 24-h post-intervention than at baseline and for the NT group, and these changes remained significant at 72-h and 2-weeks post-intervention (P < 0.01, respectively). Interestingly, nonesterified fatty acids (0.62(0.09) vs. 0.71(0.11) mmol · l-1; P < 0.01) and resting fat oxidation rate (57(11) vs. 63(4)%; P < 0.01) increased significantly from baseline 24-h post-intervention in the SET group and from baseline at 72-h (P < 0.01, respectively) and 2-weeks post-intervention (P < 0.01, respectively). Six weeks of SET improved a number of metabolic and vascular risk factors in obese, sedentary adults, highlighting the potential of SET to provide an alternative exercise model for the improvement of metabolic health in this population.
authors.affiliation: a School of Kinesiology and Leisure, Faculty of Health Sciences and Community Services , Université de Moncton , Moncton , Canada.
authors.forename: Georges
authors.initials: G
authors.lastname: Jabbour
authors.affiliation: b Department of Kinesiology , University of Laval , Laval , Canada.
authors.forename: Pascale
authors.initials: P
authors.lastname: Mauriege
authors.affiliation: b Department of Kinesiology , University of Laval , Laval , Canada.
authors.forename: Denis
authors.initials: D
authors.lastname: Joanisse
authors.affiliation: a School of Kinesiology and Leisure, Faculty of Health Sciences and Community Services , Université de Moncton , Moncton , Canada.
authors.forename: Horia-Daniel
authors.initials: HD
authors.lastname: Iancu
mesh_terms: D000886:Anthropometry; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000502:physiology; D015992:Body Mass Index; D005081:Exercise Therapy / Q000379:methods*; D005230:Fatty Acids, Nonesterified / Q000378:metabolism; D005260:Female; D000072696:High-Intensity Interval Training / Q000379:methods*; D006801:Humans; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance; D050356:Lipid Metabolism; D008297:Male; D009765:Obesity / Q000097:blood* / Q000628:therapy*; D010084:Oxidation-Reduction; D055815:Young Adult
chemical_list: D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D007328:Insulin
keywords: Supramaximal exercise; aerobic indicators; lipid oxidation; obese adults