1. Institute of Robotics and Automatic Information System, College of Artificial Intelligence, Nankai University, Tianjin 300350, China
2. Department of Rehabilitation Medicine, The Second Medical Center, Chinese PLA General Hospital, Beijing 100853, China
3. National Clinical Research Center for Geriatric Diseases, Beijing 100853, China
4. National Key Laboratory of Kidney Diseases, Beijing 100853, China
5. Engineering Research Center of Trusted Behavior Intelligence, Ministry of Education, Nankai University, Tianjin 300350, China
6. Tianjin Key Laboratory of Intelligent Robotics, Nankai University, Tianjin 300350, China
7. Institute of Intelligence Technology and Robotic Systems, Shenzhen Research Institute of Nankai University, Shenzhen 518083, China