Analysis of the Association of the Biomechanical Properties of the Lower Extremities with the Abrasion Form of Shoes

This study aimed to investigate the relationship between shoe abrasion patterns (medial or lateral), Q angle, and foot pressure in healthy young adults. An observational, cross-sectional study design involving thirty participants was employed. The alignment of the pelvis was evaluated by measuring the plantar pressure and the Q angle, in relation to the wear type of the shoe sole. No significant differences were observed between the two groups in terms of age, height, weight, leg length, and shoe wear (p<.05). Furthermore, the Q angle, body sway area, maximum plantar pressure (Max P), average plantar pressure (Avg P), and plantar pressure deviation index (center of pressure excursion index, CPEI) were analyzed. The results revealed three significant correlations in the medial abrasion group and 24 significant correlations in the lateral abrasion group. Notably, the lateral abrasion group exhibited higher positive correlations between the Q angle and plantar pressure compared to the medial abraded group. It should be noted that the presence of abrasion inside the shoe is not typical among individuals who walk normally, and its occurrence may be attributed to heterogeneity resulting from differences in general characteristics.