Effects of high-intensity interval training and concurrent training on body composition and metabolic profile in postmenopausal women with overweight or obesity: a clinical trial

Abstract

Aim: The aim of this study was to compare the effects of high-intensity interval training (HIIT) and concurrent training (CONC) on body composition and metabolic profile in postmenopausal women. Methods: Forty-five postmenopausal women with overweight or obesity (50–65 years) were randomly assigned to one of three groups: HIIT group, CONC group, or control group (CG). All groups underwent a 12-week intervention, consisting of three training sessions per week, scheduled on alternate days. All dependent variables (body composition, lipid, or glycemic markers) were assessed before and after a 12-week intervention period. Results: The CONC and HIIT groups showed anthropometric improvements compared to the CG. In this regard, CONC and HIIT significantly (P < 0.05) reduced their body weight and body mass index (BMI) compared with the CG. This reduction was due to a decrease in fat mass, mainly in the abdominal area, as reflected by the reduction in the waist-to-hip ratio. Participants in the CONC group showed greater reductions in body weight, BMI, and body fat percentage compared with the HIIT group, while both exercise interventions produced similar improvements in metabolic biomarkers. Regarding circulating parameters, CONC and HIIT significantly ( P < 0.05) reduced circulating triglycerides, total cholesterol, and LDL-cholesterol, which resulted in a decrease in the atherogenic index of plasma (AIP, calculated as log[TG/HDL-C]) compared with CG. Blood glucose and insulin levels also decreased significantly ( P < 0.05) in CONC and HIIT compared with CG, with a consequent reduction in the homeostatic model assessment-insulin resistance (HOMA-IR). Conclusions: A 12-week program of HIIT or CONC training represents an effective strategy for improving body fat reduction and metabolic profile in sedentary postmenopausal women with overweight or obesity [ClinicalTrials.gov, identifier (ID NCT07302191)].

Keywords

concurrent training / high intensity interval training / postmenopausal women / obesity / biomarkers / lipids / glycemic / anthropometric

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