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Abstract

Background: A Body Shape Index (ABSI) is an anthropometric indicator combining waist circumference, weight, and height, providing a BMI-independent measure of central obesity and a recognized predictor of mortality. Despite its relevance, research on ABSI in early elderly populations remains limited. This study assessed the impact of a six-week time-restricted eating (TRE) intervention on ABSI z-scores in overweight adults aged 65–74, with attention to gender differences. Materials and Methods: A total of 116 participants were randomized into a TRE group (16:8 fasting window from 8:00 PM to 12:00 PM) or a control group maintaining habitual eating. ABSI z-scores were evaluated pre- and post-intervention using repeated measures ANOVA. Results: TRE significantly reduced ABSI z-scores in men (from -0.97 to -2.02, p ≤ 0.00001), indicating decreased central obesity. No significant changes were found in women or the control group. Significant effects were observed for TIME and TIME × GROUP interaction. Conclusions: A six-week TRE intervention led to meaningful improvements in ABSI z-scores among overweight early elderly men. TRE may serve as a cost-effective and targeted approach for reducing central obesity and mortality risk in aging male populations.

Author ORCID Identifier

Przemysław Domaszewski, ORCID: 0000-0003-4967-8923

Mariusz Konieczny, ORCID: 0000-0001-7995-0882

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

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