“…However, body segment composition depends entirely on the locations of attached markers in the 3D motion analysis system (Andersen et al, 2010;Labbe et al, 2008;Schulz and Kimmel, 2010;Cereatti et al, 2006). A number of studies have shown that marker misplacement and inaccuracies have a significant impact on gait kinematic measurements (Croce et al, 2005;Stagni et al, 2006;Jensen et al, 2016;Wen et al, 2018;Mickaël et al, 2020). Consequently, there are questions regarding the validity and reliability of measurements obtained Sentong WANG*, Yunan CAI*, Kazunori HASE**, Kazuo UCHIDA***, Daisuke KONDO***, Tsuguya SAITOU*** and Susumu OTA****…”