OBJECTIVE: The aim of this study was to investigate whether indicators of metabolic health fluctuate during the week in a group of children posing unhealthier physical activity, sedentary time, and sleep during weekends compared to weekdays. METHODS: A total of 807 eight- to eleven-year-old children had valid metabolic health markers from one, two, or three measurements contributing 2190 to 2240 observations of metabolic health markers. The weekly variation was tested using linear mixed models. RESULTS: Homeostatic model assessment of insulin resistance (HOMAIR), triglycerides, leptin (all P < 0.001), and adiponectin (P = 0.03) decreased from Monday to Friday, whereas ghrelin increased (P < 0.001). HOMAIR , triglycerides, and leptin were 35%, 28%, and 33% higher on Mondays compared to Fridays, respectively, and ghrelin was 7% lower on Mondays compared to Fridays (all P < 0.001). CONCLUSIONS: The large weekly variation in HOMAIR , triglycerides, and leptin was likely the result of unhealthier behaviors during weekends. These findings have public health relevance and raise methodological issues that should ideally be taken into account in future studies.
OBJECTIVE: The aim of this study was to investigate whether indicators of metabolic health fluctuate during the week in a group of children posing unhealthier physical activity, sedentary time, and sleep during weekends compared to weekdays. METHODS: A total of 807 eight- to eleven-year-old children had valid metabolic health markers from one, two, or three measurements contributing 2190 to 2240 observations of metabolic health markers. The weekly variation was tested using linear mixed models. RESULTS: Homeostatic model assessment of insulin resistance (HOMAIR), triglycerides, leptin (all P < 0.001), and adiponectin (P = 0.03) decreased from Monday to Friday, whereas ghrelin increased (P < 0.001). HOMAIR , triglycerides, and leptin were 35%, 28%, and 33% higher on Mondays compared to Fridays, respectively, and ghrelin was 7% lower on Mondays compared to Fridays (all P < 0.001). CONCLUSIONS: The large weekly variation in HOMAIR , triglycerides, and leptin was likely the result of unhealthier behaviors during weekends. These findings have public health relevance and raise methodological issues that should ideally be taken into account in future studies.
Authors: Jörn Jaskolowski; Christian Ritz; Anders Sjödin; Arne Astrup; Pal B Szecsi; Steen Stender; Mads F Hjorth Journal: J Lipid Res Date: 2017-04-05 Impact factor: 5.922
Authors: Jakob Tarp; Eva Jespersen; Niels Christian Møller; Heidi Klakk; Barbara Wessner; Niels Wedderkopp; Anna Bugge Journal: BMC Public Health Date: 2018-05-09 Impact factor: 3.295
Authors: Anna Bugge; Sören Möller; Daniel R Westfall; Jakob Tarp; Anne K Gejl; Niels Wedderkopp; Charles H Hillman Journal: PLoS One Date: 2018-06-18 Impact factor: 3.240
Authors: Natascha Holbæk Pedersen; Jakob Tarp; Lars Bo Andersen; Anne Kær Gejl; Tao Huang; Lone Peijs; Anna Bugge Journal: PLoS One Date: 2017-10-13 Impact factor: 3.240