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- Title
Impact of 3-year lifestyle intervention on postprandial glucose metabolism: the SLIM study.
- Authors
Roumen, C.; Corpeleijn, E.; Feskens, E. J. M.; Mensink, M.; Saris, W. H. M.; Blaak, E. E.
- Abstract
Objective To determine the effect of a 3-year diet and exercise lifestyle intervention, based on general public health recommendations, on glucose tolerance, insulin resistance and metabolic cardiovascular risk factors in Dutch subjects with impaired glucose tolerance (IGT). Methods The study was a randomized controlled lifestyle intervention over 3 years. A total of 147 IGT subjects (75 male, 72 female) were randomized to the intervention (INT) group or control (CON) group; 106 subjects (52 INT, 54 CON) completed 3 years of intervention. Annually, glucose, insulin and free fatty acid (FFA) concentrations were determined fasting and after an oral glucose tolerance test. Measurements of body weight, serum lipids, blood pressure and maximal aerobic capacity were also performed. Results Analysis of those who completed the 3-year trial, showed that the lifestyle intervention improved body weight (INT −1.08 ± 4.30 kg; CON +0.16 ± 4.91 kg, P = 0.01), homeostatis model assessment index for insulin resistance and 2-h FFA. Two-hour glucose concentrations improved in the INT group, the difference being most pronounced after 1 year, with a return to baseline values after 3 years, from 8.59 ± 1.55 to 8.55 ± 0.34 mm; in contrast, 2-h glucose deteriorated in the CON group—from 8.46 ± 1.84 to 9.35 ± 2.50 mm ( P = 0.02). In the INT group, diabetes incidence was reduced by 58% ( P = 0.025). Conclusion Our lifestyle intervention showed a sustained beneficial effect on 2-h glucose concentrations, insulin resistance and 2-h FFA, even after 3 years. Our lifestyle intervention is effective, but for implementation more information is needed about factors influencing adherence.
- Subjects
EXERCISE; DIET therapy; GLUCOSE; INSULIN; FATTY acids; GLUCOSE tolerance tests; BODY weight; BLOOD lipids
- Publication
Diabetic Medicine, 2008, Vol 25, Issue 5, p597
- ISSN
0742-3071
- Publication type
Article
- DOI
10.1111/j.1464-5491.2008.02417.x