2.5. Statistical analysis
The effect of LBP and low back support on low back and trapezius muscle activities and comparison of the groups were measured by Student’s test procedures. The effect of driving, LBP, low back support and pain provocation results on pain and fatigue intensities were evaluated by repeated mea sures ANOVA. The logarithmic transformation of VAS values was made because of nonnormal distribution. Statistical significance was set as P < 0.05.