Simple Smartphone-Based Assessment of Gait Characteristics in Parkinson Disease: Validation Study

Dongning Su   ^{1 *} , BS ;   Zhu Liu   ^{1 *} , MD ;   Xin Jiang   ^{2, 3, 4 *} , MD ;   Fangzhao Zhang   ⁵ , BA ;   Wanting Yu   ⁶ , BSc ;   Huizi Ma   ¹ , MD ;   Chunxue Wang   ¹ , MD ;   Zhan Wang   ¹ , MD ;   Xuemei Wang   ¹ , MD ;   Wanli Hu   ⁷ , MD ;   Brad Manor   ^{6, 8} , PhD ;   Tao Feng   ¹ , MD ;   Junhong Zhou   ^{6, 8, 9} , PhD

¹ Department of Neurology, Beijing Tiantan Hospital, Beijing, China

² The Second Clinical Medical College, Jinan University, Guangzhou, China

³ Department of Geriatrics, Shenzhen People’s Hospital, Shenzhen, Guangdong, China

⁴ The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, China

⁵ Department of Computer Science, The University of British Columbia, Vancouver, BC, Canada

⁶ Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Roslindale, MA, United States

⁷ Department of Hematology and Oncology, Jingxi Campus, Capital Medical University, Beijing ChaoYang Hospital, Beijing, China

⁸ Beth Israel Deaconess Medical Center, Boston, MA, United States

⁹ Harvard Medical School, Boston, MA, United States

*these authors contributed equally