Effects of physical characteristics and residence style on alignment of lower extremity.

This research was performed to identify the incidence of deformity of lower extremity and to identify the relationship of the incidence between the deformities. Once the incidences and relationship are found, next purpose was to find the effects of physical characteristics and residence styles on the development of lower extremity deformities. One hundred fifteen males and 108 females participated in this study. Data collecting was performed by questionnaire and visual postural evaluation. The incidence of genu varus was significantly high in standing-up life style compared to sitting-on life style (chi-square=8.28; P=0.004). However, the incidences of heel varus (chi-square=13.223; P=0.004) and femoral torsion (chi-square=19.347; P<0.0001) were significantly high in sitting-on life style than standing-up life style. The incidences of genu varus (chi-square=24.18; P<0.0001), heel varus (chi-square= 15.412; P<0.0001), and tibial torsion (chi-square=6.285; P<0.012) were significantly high in sitting-on life style compared to standing-up life style (P<0.05). The odd ratio result for sitting-on life style against standing-up life style showed 6.6 times significantly high relationship in femoral torsion (95% confidence range, 1.64-26.47) in men.