Dépôt numérique

Tune out and turn in: the influence of television viewing and sleep on lipid profiles in children

Manousaki, Despoina; Barnett, Tracie A; Mathieu, Marie-Ève; Maximova, Katerina; Simoneau, Gabrielle; Harnois-Leblanc, Soren; Benedetti, Andrea; McGrath, Jennifer; Henderson, Melanie; Drapeau, Vicky; Dubois, Josée; Gray-Donald, Katherine; Henderson, Melanie; Lambert, Marie; Lévy, Émile; Nicolau, Belinda; O'Loughlin, Erin; Paradis, Gilles; Poirier, Philippe; Sabiston, Catherine M.; Tremblay, Angelo et Zappitelli, Michael (2020). Tune out and turn in: the influence of television viewing and sleep on lipid profiles in children International Journal of Obesity , vol. 44 , nº 5. pp. 1173-1184. DOI: 0.1038/s41366-020-0527-5.

Ce document n'est pas hébergé sur EspaceINRS.


Background/objectives: Physical activity is beneficial to lipid profiles; however, the association between sedentary behavior and sleep and pediatric dyslipidemia remains unclear. We aimed to investigate whether sedentary behavior or sleep predicted lipid profiles in children over a 2-year period.

Subjects/methods: Six hundered and thirty children from the QUALITY cohort, with at least one obese parent, were assessed prospectively at ages 8–10 and 10–12 years. Measures of sedentary behavior included self-reported TV viewing and computer/video game use. Seven-day accelerometry was used to derive sedentary behavior and sleep duration. Adiposity was assessed using DEXA scans. Twenty-four-hour dietary recalls yielded estimates of carbohydrate and fat intake. Outcomes included fasting total cholesterol, triglycerides, HDL and LDL-cholesterol. Multivariable models were adjusted for adiposity and diet.

Results: At both Visit 1 (median age 9.6 year) and Visit 2 (median age 11.6 year), children were of normal weight (55%), overweight (22%), or obese (22%). Every additional hour of TV viewing at Visit 1 was associated with a 7.0% triglyceride increase (95% CI: 3.5, 10.6; P < 0.01) and 2.6% HDL decrease (95% CI: −4.2, −0.9; P < 0.01) at Visit 2; findings remained significant after adjusting for adiposity and diet. Every additional hour of sleep at Visit 1 predicted a 4.8% LDL decrease (95% CI: −9.0, −0.5; P = 0.03) at Visit 2, after adjusting for fat intake; this association became nonsignificant once controlling for adiposity.

Conclusions: Longer screen time during childhood appears to deteriorate lipid profiles in early adolescence, even after accounting for other major lifestyle habits. There is preliminary evidence of a deleterious effect of shorter sleep duration, which should be considered in further studies.

Type de document: Article
Mots-clés libres: -
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 20 juill. 2021 04:03
Dernière modification: 18 nov. 2022 14:21
URI: https://espace.inrs.ca/id/eprint/11636

Gestion Actions (Identification requise)

Modifier la notice Modifier la notice