1. Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Semarang, Indonesia
2. Department of Mechanical Engineering, Faculty of Engineering, Wahid Hasyim University, Semarang, Indonesia
3. Department of Orthopaedic and Traumatology, Dr. Kariadi Hospital, Semarang, Indonesia
4. Center for Biomechanics Biomaterials Biomechatronics and Biosignal processing (CBIOM3S), Universitas Diponegoro, Semarang, Indonesia
5. Department of Industrial Engineering, Faculty of Industrial Technology, University of Atma Jaya Yogyakarta, Yogyakarta, Indonesia