Name: Si Chen; Title:Associate Professor; Affiliation:School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University; Address:44 West Wenhua Road, Jinan 250012, China; Email:chensi@sdu.edu.cn; Tel.:+86-0531-88382000; Educational Background Kyushu University, Fukuoka City, Japan Doctor of Philosophy (Major: Behavioral and Health Sciences); Research Area: Physical Activity and Nutritional Epidemiology