1. Doctoral student at the Department of Mechanical Engineering, Diponegoro University, Semarang, Indonesia
2. Center for Biomechanics, Biomaterials, Biomechantronics and Biosignal Processing (CBIOM3S), Diponegoro University, Semarang, Indonesia
3. Department of Mechanical Engineering, Universitas Negeri, Semarang, Indonesia
4. Department of Mechanical Engineering, Diponegoro University, Semarang, Indonesia