Variations in vitamin D status among Chinese children aged 1–6 years during the COVID-19 pandemic by Yongfeng Qiao, Xiaoqin Wang, Yanfen Ma, Jian Hu

“…The purpose of this study was to evaluate 25(OH)D concentrations in children before and during the COVID-19 lockdown and to analyze the factors influencing their vitamin D status.MethodsA cross-sectional survey included children aged 1–6 years from Han Zhong Central Hospital in the southern Shanxi Province of China. This study examined healthy children from a pediatric health care department over two periods: before COVID-19 (March 2019–February 2020), and during COVID-19 (March 2020–February 2021). …”
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Inhibition of platelet activation alleviates diabetes-associated cognitive dysfunction via attenuating blood-brain barrier injury by Fuxing Xu, Juan Hu, Xuying Li, Lan Yang, Shiqiu Jiang, Tao Jiang, Bo Cheng, Hailiang Du, Ruiduo Wang, Yingying Deng, Wei Gao, Yansong Li, Yaomin Zhu

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How coach leadership behavior influences athletes’ performance: the chain-mediated role of the coach-athlete relationship and psychological fatigue by Rui Liu, Shanshan Wang, Jun Li

“…This study aims to investigate the relationships among coach leadership behavior, the coach-athlete relationship, psychological fatigue, and athletes’ performance, providing insights into enhancing athletes’ sports performance.MethodsUsing simple random sampling, 556 athletes (44.60% female) were recruited from professional training teams in the Xinjiang and Shanxi provinces of China as the study sample. The sample includes 47 s-class national athletes, 276 first-class national athletes, 171 master-class athletes, and 62 international-level athletes. …”
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