In intention-to-treat analyses for the N = @ patients , significant between-group mean differences ( MD ) favoring the exercise group ( EX ) were observed for general fatigue ( P = @ ) , especially for the subscale physical fatigue -LSB- MD = -@ ; @ % confidence interval -@ to -@ , P = @ -RSB- , but not for affective ( P = @ ) or cognitive fatigue ( P = @ ) .