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- Title
Effect of Aerobic Exercise Intensity on Energy Expenditure and Weight Loss in Severe Obesity-A Randomized Controlled Trial.
- Authors
Berge, Jarle; Hjelmesæth, Jøran; Hertel, Jens K.; Gjevestad, Espen; Småstuen, Milada Cvancarova; Johnson, Line Kristin; Martins, Catia; Andersen, Eivind; Helgerud, Jan; Støren, Øyvind; Hjelmesaeth, Jøran
- Abstract
<bold>Objective: </bold>This study aimed to compare the effects of two aerobic exercise programs of different intensities on energy expenditure.<bold>Methods: </bold>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.<bold>Results: </bold>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.<bold>Conclusions: </bold>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.
- Subjects
AEROBIC exercises; WEIGHT loss; RANDOMIZED controlled trials; EXERCISE intensity; HIGH-intensity interval training; ENERGY metabolism; RESEARCH; RESEARCH methodology; MORBID obesity; MEDICAL cooperation; EVALUATION research; COMPARATIVE studies; EXERCISE; RESEARCH funding; STATISTICAL sampling; EXERCISE therapy
- Publication
Obesity (19307381), 2021, Vol 29, Issue 2, p359
- ISSN
1930-7381
- Publication type
journal article
- DOI
10.1002/oby.23078