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Int J Obes Relat Metab Disord. 2002 Sep;26(9):1254-60.

Does using the Internet facilitate the maintenance of weight loss?

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  • 1Department of Nutrition and Food Sciences, The University of Vermont, Burlington 05405, USA.



The purpose of this study was to investigate the effectiveness of a weight maintenance program conducted over the Internet.


Longitudinal, clinical behavioral weight loss trial with 6-month in-person behavioral obesity treatment followed by a 12-month maintenance program conducted both in-person (frequent in-person support; F-IPS, minimal in-person support; M-IPS) and over the Internet (Internet support; IS).


A total of 122 healthy, overweight adults (age=48.4+/-9.6, BMI=32.2+/-4.5 kg/m(2), 18 male)


Body weight, dietary intake, energy expended in physical activity, attendance, self-monitoring, comfort with technology.


Results (n=101) showed that weight loss did not differ by condition during treatment (8.0+/-5 vs 11+/-6.5 vs 9.8+/-5.9 kg, P=0.27 for IS, M-IPS and F-IPS, respectively). The IS condition gained significantly more weight than the F-IPS group during the first 6 months of weight maintenance (+2.2+/-3.8 vs 0+/-4 kg, P<0.05) and sustained a significantly smaller weight loss than both in-person support groups at the 1 y follow-up (-5.7+/-5.9 vs -10.4+/-9.3 vs -10.4+/-6.3 kg, P<0.05 for IS, M-IPS and F-IPS, respectively). Attendance at maintenance meetings was greater for the F-IPS than the IS condition over the 1 y maintenance program (54 vs 39%, P=0.04). Acceptability of assigned condition was higher for subjects in the F-IPS than IS condition.


The results of this study suggest that Internet support does not appear to be as effective as minimal or frequent intensive in-person therapist support for facilitating the long-term maintenance of weight loss.

[PubMed - indexed for MEDLINE]
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