Between-group differences in change from baseline to the end of intervention were-2 .78 ( 95 % CI,-3 .75 to 1.80 ) m/s for pulse wave velocity ( P < 0.001 ) , -2.99 % ( 95 % CI,-5 .00 % to-0 .89 % ) for relative fluid overload ( P = 0.05 ) , and-2 .43 ( 95 % CI,-7 .70 to 2.84 ) mmHg for systolic BP ( P = 0.4 ) .