Figure 4

Chronic effects of isometric yoga on fatigue. Chalder’s Fatigue Scale (FS) subscale scores for physical symptoms (a), mental symptoms (b), and FS total scores (c) of the yoga and control groups. **P < 0.01 for differences between the pre- and post-intervention scores (paired-sample t test). # P < 0.05, ## P < 0.01 for differences in the scores between the yoga and control groups (independent-sample t test).