1. College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
2. Key Laboratory of Integrated Design and Online Monitoring, Light Industry and Food Machinery and Equipment,Tianjin, Tianjin300222, China
3. Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Centre for Rehabilitation Technical Aids,No. 1 Ronghuazhonglu,BDA, Beijing 100176, China
4. NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital and Tianjin Endocrinology InstituteTianjin Medical University, Tianjin 300134, China