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ABSTRACT: Objective
This study aimed to compare the effects of two aerobic exercise programs of different intensities on energy expenditure.Methods
This was a single-center randomized controlled trial of patients with severe obesity allocated to a 24-week moderate-intensity continuous training (MICT) program or a combined MICT with high-intensity interval training (HIIT/MICT) program. The primary outcome was energy expenditure during exercise (EEDE). Secondary outcomes included resting metabolic rate, cardiorespiratory fitness, and body composition.Results
A total of 82 (56% females) patients were screened, and 71 (55% females) patients were allocated to HIIT/MICT (n?=?37) or MICT (n?=?34). Per-protocol analysis showed that EEDE increased by 10% (95% CI: 3%-17%) in the HIIT/MICT group (n?=?16) and 7.5% (95% CI: 4%-10%) in the MICT group (n?=?24), with no differences between groups. In the 8- to 16- week per-protocol analysis, the HIIT/MICT group had a significantly larger increase in EEDE compared with the MICT group. Resting metabolic rate remained unchanged in both groups. HIIT/MICT and MICT were associated with significant weight loss of 5 kg and 2 kg, respectively.Conclusions
Patients completing a 24-week combined HIIT/MICT program did not achieve a higher EEDE compared with those who completed a 24-week MICT program. The HIIT/MICT group experienced, on average, a 3-kg-larger weight loss than the MICT group.
SUBMITTER: Berge J
PROVIDER: S-EPMC7898283 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Berge Jarle J Hjelmesaeth Jøran J Hertel Jens K JK Gjevestad Espen E Småstuen Milada Cvancarova MC Johnson Line Kristin LK Martins Catia C Andersen Eivind E Helgerud Jan J Støren Øyvind Ø
Obesity (Silver Spring, Md.) 20210201 2
<h4>Objective</h4>This study aimed to compare the effects of two aerobic exercise programs of different intensities on energy expenditure.<h4>Methods</h4>This was a single-center randomized controlled trial of patients with severe obesity allocated to a 24-week moderate-intensity continuous training (MICT) program or a combined MICT with high-intensity interval training (HIIT/MICT) program. The primary outcome was energy expenditure during exercise (EEDE). Secondary outcomes included resting met ...[more]