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Changes in Adolescent Meal Patterns and Processed Food Consumption following Sleep Restriction: Results from a Randomized Crossover Trial.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Changes in Adolescent Meal Patterns and Processed Food Consumption following Sleep Restriction: Results from a Randomized Crossover Trial./
Author:	Whitacre, Catharine.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	38 p.
Notes:	Source: Masters Abstracts International, Volume: 84-01.
Contained By:	Masters Abstracts International84-01.
Subject:	Nutrition. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29282484
ISBN:	9798802755273

Changes in Adolescent Meal Patterns and Processed Food Consumption following Sleep Restriction: Results from a Randomized Crossover Trial.
Whitacre, Catharine.

Changes in Adolescent Meal Patterns and Processed Food Consumption following Sleep Restriction: Results from a Randomized Crossover Trial. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 38 p.

Source: Masters Abstracts International, Volume: 84-01.

Thesis (M.S.)--University of Cincinnati, 2022.

This item must not be sold to any third party vendors.

To evaluate if sleep restriction influences 1) meal frequency and late evening food consumption; and 2) intake of ultra-processed foods in male and female adolescents. A total of 92 healthy adolescents 14-17 years old participated in a cross-over experimental sleep protocol, comparing two conditions, each lasting 5 nights: extended sleep (ES, 9.5 h/night) and shortened sleep (SS, 6.5 h/night). The order of conditions was randomly counterbalanced, and there was a washout period of 2 days between conditions. The study team conducted 24-h dietary recalls on 3 randomly selected days during each protocol. For objective 1, we used the timestamps of the meals in each dietary recall to determine number of eating occasions in 24 h, number of eating occasions after 8pm, and kilocalories consumed after 8pm. For objective 2, we used the Nova food classification system to determine kilocalories and percent of kilocalories consumed from ultra-processed foods (UPF) over 24 hours and after 8pm. We used general linear model analysis to compare these outcomes between ES and SS conditions. We also explored the moderating impact of individual and experimental factors, including family income and participant age, sex, age- and sex-adjusted body mass index, and the order in which they had the sleep conditions. There was no significant difference in number of eating occasions in 24 h across experimental conditions (SS=4.2, ES=4.1, p=0.845). There was a significantly greater number of eating occasions after 8pm (0.9 vs. 0.6, p<0.001) and higher kilocalorie consumption from UPF after 8pm (291 vs. 172, p<0.001) during SS than ES. The effect of sleep condition on overall daily UPF kilocalorie consumption appeared to be moderated by family income (p= 0.009): youth from low income households had significantly higher UPF intake during SS than ES (1553 vs. 1200, p= 0.003), but those from middle or high income households did not (p>0.2). Otherwise, the effect of the sleep manipulation did not vary based on our exploratory individual and experimental factors. Adolescents who are sleep restricted are more likely to eat more frequently and eat highly processed foods after 8pm. Sleep restriction may most negatively influence dietary patterns in the late evening, though exploratory analyses also suggested that youth from low-income households may be prone to eat more highly processed foods across the whole day when sleep-restricted than when well-rested.

ISBN: 9798802755273Subjects--Topical Terms:

517777
Nutrition.
Subjects--Index Terms:

Adolescents

Changes in Adolescent Meal Patterns and Processed Food Consumption following Sleep Restriction: Results from a Randomized Crossover Trial.
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520 $a To evaluate if sleep restriction influences 1) meal frequency and late evening food consumption; and 2) intake of ultra-processed foods in male and female adolescents. A total of 92 healthy adolescents 14-17 years old participated in a cross-over experimental sleep protocol, comparing two conditions, each lasting 5 nights: extended sleep (ES, 9.5 h/night) and shortened sleep (SS, 6.5 h/night). The order of conditions was randomly counterbalanced, and there was a washout period of 2 days between conditions. The study team conducted 24-h dietary recalls on 3 randomly selected days during each protocol. For objective 1, we used the timestamps of the meals in each dietary recall to determine number of eating occasions in 24 h, number of eating occasions after 8pm, and kilocalories consumed after 8pm. For objective 2, we used the Nova food classification system to determine kilocalories and percent of kilocalories consumed from ultra-processed foods (UPF) over 24 hours and after 8pm. We used general linear model analysis to compare these outcomes between ES and SS conditions. We also explored the moderating impact of individual and experimental factors, including family income and participant age, sex, age- and sex-adjusted body mass index, and the order in which they had the sleep conditions. There was no significant difference in number of eating occasions in 24 h across experimental conditions (SS=4.2, ES=4.1, p=0.845). There was a significantly greater number of eating occasions after 8pm (0.9 vs. 0.6, p<0.001) and higher kilocalorie consumption from UPF after 8pm (291 vs. 172, p<0.001) during SS than ES. The effect of sleep condition on overall daily UPF kilocalorie consumption appeared to be moderated by family income (p= 0.009): youth from low income households had significantly higher UPF intake during SS than ES (1553 vs. 1200, p= 0.003), but those from middle or high income households did not (p>0.2). Otherwise, the effect of the sleep manipulation did not vary based on our exploratory individual and experimental factors. Adolescents who are sleep restricted are more likely to eat more frequently and eat highly processed foods after 8pm. Sleep restriction may most negatively influence dietary patterns in the late evening, though exploratory analyses also suggested that youth from low-income households may be prone to eat more highly processed foods across the whole day when sleep-restricted than when well-rested.
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