The Seventh Medical Center of PLA Army General Hospital 3 articles published in JoVE Behavior Physical Activity Measurement in Children Accepting Table Tennis Training Xin Zhang*1, Cuiqiao Xia*2, Xiuli Zhao3, Yu Liu3, Hóngyi Zhào2,3, Yonghua Huang2 1Department of Sport, Inner Mongolia Medical University, 2Department of Neurology, The Seventh Medical Center of PLA General Hospital, 3Department of Neurology, NO 984 Hospital of PLA This study proposes an accelerometer-based method to objectively measure physical activity (PA) and leisure time physical activity (LTPA) in Chinese children accepting table tennis training in clubs. Medicine Digital Handwriting Analysis of Characters in Chinese Patients with Mild Cognitive Impairment Hóngyi Zhào*1,2, Yanhai Zhang*3, Cuiqiao Xia1, Yu Liu2, Zhiyi Li2, Yonghua Huang1 1Department of Neurology, Chinese PLA General Hospital, 2Department of Neurology, NO 984 Hospital of PLA, 3Department of Cadre Ward, Xijing 986 Hospital, Fourth Military Medical University This study proposed a digital handwriting analysis of characters in individuals with mild cognitive impairment to find more information than is revealed by traditional pencil–paper handwriting analysis. Medicine Traditional Trail Making Test Modified into Brand-new Assessment Tools: Digital and Walking Trail Making Test Wei Wei*1, Hóngyi Zhào*1,2, Yu Liu2, Yonghua Huang1 1Department of Neurology, The Seventh Medical Center of PLA Army General Hospital, 2Department of Neurology, NO 984 Hospital of PLA Here, we present a protocol to show how to perform two types of cognitive assessment tools derived from the paper-pencil version of the Trail Making Test.