Weight loss and self-regulatory eating efficacy in older adults: the cooperative lifestyle intervention program.

OBJECTIVES: Using the weight efficacy lifestyle questionnaire (WEL), we examined whether a group-mediated intervention for weight loss among older, obese adults resulted in changes in self-regulatory self-efficacy for eating behavior and whether these changes mediated weight loss. METHODS: This was a randomized controlled design, and 288 older adults received 1 of 3 treatments for 6 months: physical activity only (PA), weight loss + physical activity (WL + PA), or a successful aging (SA) health education program. The WEL was administered prior to randomization and again at the 6-month follow-up visit. RESULTS: A significant treatment effect was observed for the WEL, F (2249) = 15.11, p < .0001, partial eta2 = .11, showing that improvement occurred only in the WL + PA group as compared with PA and SA. Changes in WEL scores partially mediated the effects of the WL + PA intervention on weight loss. DISCUSSION: These results illustrate that WL + PA can be effective in improving older adults' self-efficacy for the self-regulation of eating behavior and that these changes are prospectively related to the amount of weight loss. Further research is warranted on an expanded concept of self-efficacy as well as controlled experimental studies on eating behavior in older adults.

Extending the reach of nutrition education for older adults: feasibility of a Train-the-Trainer approach in congregate nutrition sites.

Low-income older adults are difficult to reach with nutrition education. This study examines the feasibility of a Train-the-Trainer approach using congregate nutrition site (CNS) managers to deliver nutrition education. The study suggests that CNS managers were receptive to the role of trainer, CNS participants were satisfied with this method, and the acceptability of managers as trainers did not vary with participants' levels of risk of malnutrition. Although the sample size (53 participants and 4 managers) and convenience sampling method limit generalizability, the promising results suggest the potential benefits of this method and the need for further study.