A Survey of the Thickness of the Shoe Sole among Junior High School Students in Greater Jakarta for Shoe Correction in Seat Height-Popliteal Height Equation

Abstract

This paper aimed to present a survey result of the thickness of the shoe sole
among junior high school students in Greater Jakarta, Indonesia. A number of
160 samples of the shoe wearing by junior high school students (85 boys and 65
girls) from Grade 7-Grade 9 was measured. The thickness of the sole of the shoe
wearing by them were measured. The results were presented in mean and SD for
each grade and gender. T-test results showed that no significant differences were
found for thickness of the sole of the shoe wearing by boys and girls within the
same grade. Anova test results also revealed that no significant differences were
found for thickness of the sole of the shoe among boys in Grade 7-9 (F=0.54,
p=0.58) and girls (F=1.06, p=0.35). Findings in this study revealed that a 20mm
shoe correction, as often used by many researchers, which is added to the
popliteal height to dimension the seat height (SH) is appropriate to be used for
population under study. The results of this study provided sufficient justification
for the use of a 2 cm shoe correction (SC) in addition to popliteal height when
determining seat height of the chair.