Sun-shil Shin และ Won-gyu Yoo. (2021) Effects of lumbar flat back posture on upper trunk accelerationduring gait: A preliminary study. <i>Songklanakarin Journal of Science an Technology (SJST)</i>, <i>43</i>(6), 1570-1575.Sun-shil Shin และ Won-gyu Yoo. "Effects of lumbar flat back posture on upper trunk accelerationduring gait: A preliminary study". Songklanakarin Journal of Science an Technology (SJST) 43 (2021):1570-1575.Sun-shil Shin และ Won-gyu Yoo. Effects of lumbar flat back posture on upper trunk accelerationduring gait: A preliminary study. Research and Development Office, Prince of Songkla University:ม.ป.ท. 2021.