Department of Physical Activity Biosciences, School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Department of Epidemiology, Institute of Social Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
Am J Hum Biol. 2024 Nov;36(11):e24165. doi: 10.1002/ajhb.24165. Epub 2024 Oct 6.
University students experienced significant changes in their routines with the implementation of remote learning during Covid-19 pandemic, including increase in sedentary behavior (SB) time and ultra-processed foods (UPF's) consumption, which may have influenced changes in body mass index (BMI).
To evaluate the association between the variation in SB time and UPF's consumption with the variation in BMI, before and during the pandemic, in university students.
This is a cross-sectional study, conducted between November 2020 and February 2021, with students from a public university of Southeast of Brazil, who answered an online questionnaire with questions regarding to the period before and during the pandemic. SB was assessed through questions about time spent on TV and electronic devices. A score of the frequency of UPF's consumption was estimated based on the Brazilian Food Guide. Self-reported information on height and body mass was used to calculate BMI.
The sample comprised 3390 university students, with an average age of 28.7 (± 10.0) years. Among them, 65.4% were undergraduates, and 66.9% were women. SB time, UPF score, and BMI increased significantly during the pandemic, compared to the previous period. In this population, there was a significant association between increased SB time (β = 0.06; SE = 0.01; p < 0.001) and UPF score (β = 0.08; SE = 0.01; p < 0.001) with an increase in BMI.
Changes in SB time and UPF score were associated with an increase in BMI before and during the COVID-19 pandemic in students from a Brazilian University.
在新冠疫情期间，大学生的日常生活发生了重大变化，包括久坐时间增加和超加工食品（UPF）的消费增加，这可能影响了体重指数（BMI）的变化。
评估在新冠疫情之前和期间，大学生久坐时间和 UPF 消费变化与 BMI 变化之间的关系。
这是一项横断面研究，于 2020 年 11 月至 2021 年 2 月在巴西东南部一所公立大学进行，学生回答了一份关于疫情之前和期间的在线问卷。通过关于看电视和电子设备时间的问题来评估久坐时间。根据巴西食品指南估计 UPF 消费频率的得分。使用自我报告的身高和体重信息来计算 BMI。
该样本包括 3390 名大学生，平均年龄为 28.7（±10.0）岁。其中，65.4%是本科生，66.9%是女性。与之前的时期相比，疫情期间大学生的久坐时间、UPF 得分和 BMI 显著增加。在该人群中，久坐时间增加（β=0.06；SE=0.01；p<0.001）和 UPF 得分增加（β=0.08；SE=0.01；p<0.001）与 BMI 增加之间存在显著关联。
在巴西大学生中，新冠疫情之前和期间，久坐时间和 UPF 得分的变化与 BMI 的增加有关。
