Short‐term weight loss with diet and physical activity in young adults: The IDEA study. (5th November 2015)

• Record Type: Journal Article
• Authors: Jakicic, John M.; King, Wendy C.; Marcus, Marsha D.; Davis, Kelliann K.; Helsel, Diane; Rickman, Amy D.; Gibbs, Bethany Barone; Rogers, Renee J.; Wahed, Abdus; Belle, Steven H.
• Is Part Of: Obesity. Volume 23:Number 12(2015)
• Page Start: 2385
• Page End: 2397
• Publication Date: 2015-11-05
• Subjects: Obesity -- Periodicals; 616.398005
• DOI: 10.1002/oby.21241
• Languages: English
• ISSNs: 1930-7381

Abstract

Abstract : Objective: This study examined the effect of a behavioral weight loss intervention (BWLI) on young adults (age = 18‐35 years). Methods: Participants ( N = 470) enrolled in a 6‐month BWLI that included weekly group sessions, a prescribed energy‐restricted diet, and moderate to vigorous physical activity (MVPA). Assessments included weight, body composition, fitness, lipids, glucose, insulin, resting blood pressure and heart rate, physical activity, and dietary intake. Data are presented as median [25th, 75th percentiles]. Results: Retention was 90% ( N = 424; age: 30.9 [27.8, 33.7] years; BMI: 31.2 [28.4, 34.3] kg m −2 ). Participants completed 87.5% [76.1%, 95.5%] of scheduled intervention contacts. Weight and body fat decreased while fitness increased ( P < 0.0001). MVPA in bouts ≥10 min increased ( P < 0.0001), though total MVPA did not change significantly. Sedentary time decreased ( P = 0.03). Energy and percent fat intake decreased, while percent carbohydrate and protein intake increased ( P < 0.0001). Systolic and diastolic blood pressure, total cholesterol, LDL cholesterol, triglycerides, glucose, and insulin decreased ( P < 0.0001). Conclusions: A 6‐month BWLI produced favorable changes in dietary intake and physical activity and elicited favorable changes in weight and other health outcomes in young adults. MVPA performed in bouts of ≥10 min was associated with greater weight loss, but sedentary behavior was not.