Table 1. Characteristics of the study participants (N=22)

Characteristics	Mean±SD
Gender	Male:14, Female: 8
Age (year)	24.3±2.2
Height (cm)	168.4±5.3
Weight (kg)	66.6±7.3
Gait speed (m/s)	GSI: 1.28±0.41, TAIO: 1.32±0.47, C3DIO: 1.37±0.44
Step length (cm)	GSI: 129.00±12.40, TAIO: 131.11±11.84, C3DIO: 130.92±9.82
Step width (cm)	GSI: 11.81±2.34, TAIO: 10.73±3.17, C3DIO: 11.23±2.86
LLD degree (mm)	8.4±2.1

SD, standard deviation; GSI, general shoe insole; TAIO, thickness adjustment insole orthosis; C3DIO, customized 3D-printed insole orthosis; LLD, leg length discrepancy.