503698.fig.009a
(a)
503698.fig.009b
(b)
Figure 9: Changes in the LF/HF ratio in each gender, males (a) and females (b). Data are presented as mean (SD). Filled square, control group; filled circle, Extra 1 group. *Significantly different from control value (P < .05). Significantly different from control group (P < .05).