Associations of Social Jetlag with Dietary Behavior, Physical Activity and Obesity among Chinese Adolescents

Abstract

This study aimed to investigate the associations between social jetlag (SJL), dietary behavior, physical activity, and weight status in Chinese youth. Data were derived from a cross-sectional survey in Wuhan, China in 2019. Information on SJL, the frequency of food and beverage consumption, physical activity, and BMI category were collected via a self-reported questionnaire. The Kruskal-Wallis test and ANOVA were conducted to determine differences in daily consumption frequency of food and beverage groups, BMI category, and physical activity among SJL groups. Logistic regressions and restricted cubic splines were performed to test the association between SJL and the incidence of overweight or obesity. A final sample of 3567 Chinese adolescents [mean (SD) age, 14.67 (1.72) years; 47.41% (1691) female] were included. Our findings demonstrated that adolescents with SJL may consume more unhealthy foods and fewer beneficial foods, while engaging in less moderate to vigorous physical activity (MVPA) and reporting higher BMIs. In addition, adolescents who experience more than 2 h of SJL had significant greater risk of overweight or obesity. Our findings on SJL of Chinese adolescents confirm the harmful effects of SJL and also provide insights into the etiology of obesity in Chinese adolescents.

The association between social jetlag and parameters of metabolic syndrome and type 2 diabetes: a systematic review and meta‐analysis

“…Results from the meta‐analysis of correlations using eight studies showed a similar direction, but the correlation coefficient did not meet statistical significance 0.04 (95% CI −0.03 to 0.11), I 2 = 78% (Figure 3a). Qualitative analysis of the studies that could not be included in the meta‐analysis showed a statistically significant positive association between social jetlag and BMI (Cetiner, Yildirim, & Kalyoncu, 2021; Johnsen, Wynn, & Bratlid, 2013; Liang et al, 2022), as well as a positive correlation between social jetlag and BMI (Karadag & Yilmaz, 2021). Other studies (Berry et al, 2021; Constantino et al, 2021; Kelly et al, 2022; Larcher et al, 2016; Rusu, Ciobanu, Bala, Cerghizan, & Roman, 2019) showed no statistically significant difference in BMI between those with and without social jetlag.…”

Associations of social jetlag with physical activity and sedentary behaviour in children and adolescents: A systematic review and meta‐analysis

“…Eleven studies that examined the relationship between social jetlag and physical activity were eligible for inclusion in meta‐analysis (Aoki et al, 2020; Chandrakar, 2017; de Zwart et al, 2018; Jankovic et al, 2022; Jansen et al, 2020; Johnson et al, 2020; Kohyama, 2020; Liang et al, 2022; Lyall et al, 2020; Máchal et al, 2018; Skjåkødegård et al, 2021). Three of them targeted adolescents only (Chandrakar, 2017; de Zwart et al, 2018; Liang et al, 2022) and the others included both children and adolescents aged 6 years or older.…”

“…Eleven studies that examined the relationship between social jetlag and physical activity were eligible for inclusion in meta‐analysis (Aoki et al, 2020; Chandrakar, 2017; de Zwart et al, 2018; Jankovic et al, 2022; Jansen et al, 2020; Johnson et al, 2020; Kohyama, 2020; Liang et al, 2022; Lyall et al, 2020; Máchal et al, 2018; Skjåkødegård et al, 2021). Three of them targeted adolescents only (Chandrakar, 2017; de Zwart et al, 2018; Liang et al, 2022) and the others included both children and adolescents aged 6 years or older. A variety of physical activity outcomes were reported, including moderate‐to‐vigorous physical activity (MVPA) (Aoki et al, 2020; Jansen et al, 2020; Johnson et al, 2020; Liang et al, 2022; Skjåkødegård et al, 2021), average activity during the most active 10 h (Lyall et al, 2020), outdoor activity (Chandrakar, 2017), days of having physical activity engagement (Kohyama, 2020), sport participation (Máchal et al, 2018), physical activity score (de Zwart et al, 2018), and physical activity related energy expenditure (Jankovic et al, 2022).…”

“…Three of them targeted adolescents only (Chandrakar, 2017; de Zwart et al, 2018; Liang et al, 2022) and the others included both children and adolescents aged 6 years or older. A variety of physical activity outcomes were reported, including moderate‐to‐vigorous physical activity (MVPA) (Aoki et al, 2020; Jansen et al, 2020; Johnson et al, 2020; Liang et al, 2022; Skjåkødegård et al, 2021), average activity during the most active 10 h (Lyall et al, 2020), outdoor activity (Chandrakar, 2017), days of having physical activity engagement (Kohyama, 2020), sport participation (Máchal et al, 2018), physical activity score (de Zwart et al, 2018), and physical activity related energy expenditure (Jankovic et al, 2022). Three studies (Chandrakar, 2017; Jankovic et al, 2022; Kohyama, 2020) were rated as low quality of evidence.…”

Effects of Chronotype and Social Jet-Lag on Neurocognitive Functioning

“…Eveningness chronotypes usually try to compensate for this sleep debt by extending the sleep time on the weekends. Eveningness people are affected by SJL much more than other chronotypes because of this great conflict between social and circadian clocks (Taylor et al 2018, Liang et al 2022, Mirghani et al 2022. Eveningness chronotypes report poor sleep quality and daytime fatigue more frequently than morning chronotypes.…”