highly significantP < 0.001
Both performances in EO and EC showed that the differences between sexes were not significant in the younger subjects ( Figure 2 ) but became highly significant in the older individuals (EO_ SI : w = 52.7 versus m = 60.8, P < 0.001; EC_ SI : w = 29.0 versus m = 35.7, P < 0.001).