Relação dos intervalos entre os ciclos alimentação-jejum e sono-vigília com o consumo alimentar: estudo longitudinal com gestantes

Abstract

Introduction: Although the feeding-fasting and waking-sleep cycles occur in parallel and influence each other, eating and sleeping behaviors are distinct and should not occur at the same time of day. Thus, sleep-meal relationships – such as the interval between awakening and the first meal and between the last food event and the onset of sleep – may be related to feeding times and food consumption throughout the day, including among pregnant women. Objectives: To investigate the associations of the sleep-meal interval with feeding times and food consumption throughout the day in pregnant women. Methods: A longitudinal study that collected data from 100 pregnant women treated at the public health network in the city of Uberlandia-MG during the entire gestational period. The time intervals between waking up and having the first meal and between the last meal and going to sleep (independent variables) were investigated. Outcome measures were meal times and food consumption throughout the day. Results: Food consumption closer to sleep at night is associated with higher total daily caloric intake in the first and second trimester of pregnancy. We did not find associations between the “wake-up-first meal” interval and total calories, but the longer this interval, the greater the percentage of calories at dinner and at the last meal in the first and second gestational trimesters. Conclusion: Taking longer to eat the first meal after waking up is associated with higher caloric intake later in the day, while taking longer to sleep after eating the last meal is associated with higher total daily caloric intake, especially in the beginning and middle of pregnancy.