1. School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, 123 Mitraphab Rd, Muang Khon Kaen, Khon Kaen 40002, Thailand
2. Research Centre in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University, 123 Mitraphab Rd, Muang Khon Kaen, Khon Kaen 40002, Thailand
3. Department of Production Technology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand
4. School of Health Sciences (Physiotherapy), University of South Australia, Adelaide, Australia