Introduction and Objective: Current treatment for obesity and pre-diabetes in older adults includes weight management and engaging in a regular exercise regimen, however, many individuals are unable to achieve success with traditional calorie restriction. Time restricted eating (TRE) is a form of intermittent fasting where individuals eat within a pre-specified daily eating window. Current trials combining TRE with exercise are limited to lean, active, younger adults yet TRE combined with either resistance training or aerobic training may result in weight loss while maintaining lean mass in older adults. This pilot study was conducted to assess feasibility and acceptability 8-h TRE combined with resistance or aerobic training in older adults with prediabetes and obesity.Methods: We implemented a 12-week parallel arm randomized trial. Participants were randomized to 4 days a week of either resistance training or aerobic training and a self-selected eating windows which they maintained throughout the duration of the trial (10AM-6PM, 11AM-7PM, or 12-9PM).Results: Most participants self-selected 12-8PM for their 8-hour eating window. Participants were adherent ~5 days/week to the 8-hour window and significantly decreased their eating window from baseline. There was no difference between groups in adherence to weekly intervention meetings or exercise sessions. Body weight, BMI, and fat mass decreased significantly in both groups from baseline, but fat free mass remained unchanged.Conclusion: We show here that 8-hour time restricted eating with aerobic training or resistance training is feasible and acceptable in older adults with pre-diabetes and obesity and may improve body composition.
J. Sanchez Perez: None. K. Gabel: None.
K12HD101373 BIRCWH, Roybal 5P30AG022849
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