PD585 - EFFECT OF TIME-RESTRICTED FEEDING ON BODY COMPOSITION AND METABOLIC PARAMETERS IN ADULT, ACTIVE, OVERWEIGHT WOMEN: A 90-DAYS QUASI-EXPERIMENTAL TRIAL

Linked sessions

PD585

EFFECT OF TIME-RESTRICTED FEEDING ON BODY COMPOSITION AND METABOLIC PARAMETERS IN ADULT, ACTIVE, OVERWEIGHT WOMEN: A 90-DAYS QUASI-EXPERIMENTAL TRIAL

A. N. Nascimento1, L. F. Dias1, G. F. M. Oliveira1, E. de França2, L. M. Oyama3, R. V. Thomatieli-Santos4, D. CAETANO GONÇALVES4,* on behalf of NUMERG

1Postgraduate Program in Nutrition, Universidade Federal de São Paulo (UNIFESP), 2Universidade São Judas Tadeu (USJT), 3Physiology, Universidade Federal de São Paulo (UNIFESP), São Paulo, 4Biosciences, Universidade Federal de São Paulo (UNIFESP), Santos, Brazil

 

Rationale: The purpose of this study was to evaluate the effects of a time-restricted feeding (TRF) intervention, compared to the same period pre-post intervention, on body composition, metabolic, and hormonal parameters in active, overweight adult women

Methods: A total of 49 female volunteers, aged 20 to 46 years, with overweight and physically active, were included. Physical activity level, chronotype, sleep quality, mood, body weight, height, absolute and relative body fat,  total cholesterol and fractions, triacylglycerol, glucose, and HOMA-IR were assessed before and after 30 days of TRF (12 hours of fasting) compared to the same period under the usual diet (control) e post-intervention. Continuous data were expressed as mean ± standard deviation and 95% confidence interval. Normality was assessed using the Shapiro-Wilk test. The intervention effect was analyzed using delta values (post–pre intervention) and mixed linear models (MLM). Statistical significance was set at P < 0.05. 

Results: Of the 49 active, overweight adult women who began the intervention, 21 completed the study. Participants had a mean age of 34.38 ± 7.12 years, BMI of 27.50 ± 1.78 kg/m², average height of 1.63 ± 0.05 m, timing of the last daily meal at 8:34 p.m., regular menstrual cycles, and an average sleep duration of 8.19 ± 1.25 hours. Most participants were classified as having moderate physical activity levels, and all presented an intermediate chronotype, poor sleep quality, and evidence of underreporting of food intake. The main change observed was a reduced triacylglycerol plasma levels and increased feelings of anger in TRF diet compared with usual diet.

Conclusion: Time-restricted feeding was able to alter the participants’ lipid profile within 30 days; however, it also affected their mood, increasing feelings of anger.

Disclosure of Interest: None declared