Preventive medicine
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Preventive medicine · Jul 1986
A low-cost community approach to weight control: initial results from an evaluated trial.
This article describes a trial of a low-cost, readily disseminatable weight-control program ("Waistline") which uses behavioral, social support, and community strength-building principles. Participants meet for 12 weeks in small, lay-led groups in community settings, and use prepackaged materials designed specifically for those of modest education. Results from 407 participants are presented, showing a mean postcourse weight loss of 5.6 kg (12.3 lb) and a low attrition rate (9-12%). ⋯ A comparison group ("Slimline," N = 26) lost 1.27 kg (2.8 lb) and had an attrition rate of 31-46%. The Waistline results are comparable to those obtained by more intensive and expensive behavioral programs, and demographic data show that those of relatively low educational attainment are well represented. The potential of this approach for cheap, noncommercial dissemination of weight-control programs on a population basis is noted.
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Preventive medicine · Jul 1986
Predictors of adoption and maintenance of physical activity in a community sample.
Predictors of changes in three measures of physical activity over 1 year were examined in a community sample of 1,411 California adults. Five percent of women and 11% of men adopted vigorous activities (e.g., running), and 26% of men and 34% of women adopted regular moderate activity (e.g., walking). About 50% of vigorous exercisers and 25-35% of moderate exercisers dropped out in 1 year. ⋯ In multivariate analyses, adoption of vigorous activity was predicted by young age, male gender, and self-efficacy. Maintenance of vigorous activity was predicted by attitudes toward physical activity. Adoption of moderate activity was predicted by health knowledge, and maintenance was predicted by specific exercise knowledge, female gender, and self-efficacy.