Sayin Fatma Kubra, Buyukinan Muammer
1 Department of Nutrition and Dietetics, Faculty of Health Sciences, Necmettin Erbakan University , Konya, Turkey .
2 Department of Paediatric Endocrinology, Konya Training and Research Hospital , Konya, Turkey .
Child Obes. 2016 Aug;12(4):272-8. doi: 10.1089/chi.2015.0126. Epub 2016 Mar 15.
Lifestyle factors sleep duration and media time during childhood differ between countries. This study examined whether sleep duration and media time affect metabolic risk factors insulin resistance (IR), blood lipid profile, and liver enzymes, and whether there is a relationship between sleep time and media time in Turkish obese children and adolescents.
Subjects included 108 obese children and adolescents (aged 10-15 years) whose lifestyle factors were assessed using a survey containing questions about sleep durations, television viewing, media use, and demographic factors. Metabolic risk factors were compared among groups categorized according to sleep and media duration.
Aspartate aminotransferase (AST), alanine aminotransferase (ALT), and triglyceride (TG) levels and homeostasis model assessment of insulin resistance (HOMA-IR) values were higher in subjects who spent >5 hours/day on media. Children 10-13 years old who slept <9 hours/day were more likely to have higher insulin and HOMA-IR (p < 0.05) levels and lower high-density lipoprotein cholesterol (HDL-C) levels compared with subjects who slept 9-10 hours/day and >10 hours/day. Correlation analysis revealed a negative relationship between sleep time and media time (r = -0.471, p = 0.000).
Short sleep duration was associated with IR and an elevated plasma lipoprotein profile in children and adolescents. Our results suggest that insufficient sleep and excessive media exposure may contribute to metabolic risk in the context of obesity, and therefore, working to improve sleep duration and limit media time could help reduce metabolic risk in obese children and adolescents.
不同国家儿童期的生活方式因素、睡眠时间和媒体使用时间存在差异。本研究调查了睡眠时间和媒体使用时间是否会影响代谢风险因素、胰岛素抵抗（IR）、血脂谱和肝酶，以及土耳其肥胖儿童和青少年的睡眠时间与媒体使用时间之间是否存在关联。
研究对象包括108名肥胖儿童和青少年（年龄在10 - 15岁），通过一项包含关于睡眠时间、看电视、媒体使用和人口统计学因素问题的调查来评估他们的生活方式因素。根据睡眠和媒体使用时长对研究对象进行分组，并比较各组间的代谢风险因素。
每天使用媒体时间超过5小时的研究对象，其天冬氨酸转氨酶（AST）、丙氨酸转氨酶（ALT）、甘油三酯（TG）水平以及胰岛素抵抗稳态模型评估（HOMA - IR）值更高。与睡眠时间为9 - 10小时/天及超过10小时/天的儿童相比，10 - 13岁且睡眠时间不足9小时/天的儿童更易出现胰岛素和HOMA - IR水平升高（p < 0.05）以及高密度脂蛋白胆固醇（HDL - C）水平降低的情况。相关性分析显示睡眠时间与媒体使用时间之间呈负相关（r = -0.471，p = 0.000）。
儿童和青少年睡眠时间短与胰岛素抵抗及血浆脂蛋白水平升高有关。我们的研究结果表明，睡眠不足和过度接触媒体可能会导致肥胖背景下的代谢风险，因此，努力改善睡眠时间并限制媒体使用时间可能有助于降低肥胖儿童和青少年的代谢风险。
