Figure 5

Low frequency power (a,b), high frequency power (c,d) and low to high frequency power ratio (e,f) before and after two weeks of control and liquorice diet in the supine and upright position. Mean and 95% confidence interval depicted, *p = 0.034 for the change within the liquorice group, **p = 0.008 for the difference in mean values at week 2 between the groups; analysis of variance for repeated measurements, post-hoc t-tests were adjusted with Bonferroni corrections for multiple comparisons.