One-way ANOVA was conducted to examine whether
there were differences in low-back pain intensity and lowback
pain related disability indexes among the four groups.
One-way repeated ANOVA was also conducted to examine
differences in the degree of changes between the measurement
time points among the four groups. The Bonferroni
test was conducted as post-hoc tests. The measured data
were statistically processed using SPSS WIN ver. 18.0 and a
significance level of α=0.05.