Mun, Kyung-Ryoul Chun, Sungkuk Hong, Junggi Kim, Jinwook 2024-01-19T19:00:48Z 2024-01-19T19:00:48Z 2021-09-05 2019-11 0018-7208 https://pubs.kist.re.kr/handle/201004/119366 Objective: Little has been explored about the disparate contribution of medial longitudinal arch (MLA) and lateral longitudinal arch (LLA) to human gait and postural stability. This study aims to investigate the correlation of foot feature parameters including both MLA and LLA with postural stability. Method: Thirteen young and healthy subjects participated in this study. The newly developed FFMS extracted foot feature parameters in nonweight-bearing (NWB) and weight-bearing (WB) conditions along with postural stability parameters in single-leg-standing (SLS) condition. A bivariate correlation analysis was carried out to investigate the correlation between the foot characteristics and the postural stability parameters. Results: The foot length and width showed negative correlation with center of pressure (CoP) distance in medio-lateral (ML) and total direction, whereas the foot length in NWB and WB conditions, and the foot width in WB condition showed positive correlation with CoP distance in anterior-posterior (AP) direction. The height of the LLA curve and the area of the MLA were correlated with the postural stability parameters in AP direction. The ratios of the LLA height and area showed moderate correlation with the CoP distance in ML direction and total direction. Conclusion: The size of a foot, such as the length and width, is correlated with postural stability. Whereas the MLA features are associated with postural stability in AP direction, the LLA features are associated with that in ML and total direction. Application: The findings suggest that the roles and contributions of the MLA and LLA features in and to the postural control are different. English SAGE PUBLICATIONS INC SINGLE-LEG STANCE LONGITUDINAL-ARCH GAIT BALANCE The Relationship Between Foot Feature Parameters and Postural Stability in Healthy Subjects Article 10.1177/0018720819828545 1 HUMAN FACTORS, v.61, no.7, pp.1077 - 1085 HUMAN FACTORS 61 7 1077 1085 scie ssci scopus 000487819900004 2-s2.0-85062710342 Behavioral Sciences Engineering, Industrial Ergonomics Psychology, Applied Psychology Behavioral Sciences Engineering Psychology Article SINGLE-LEG STANCE LONGITUDINAL-ARCH GAIT BALANCE medial longitudinal arch lateral longitudinal arch foot feature measurements system height and area of foot arch curves postural stability