After adjustment on BP and HR , PWV significantly decreased with valsartan -LSB- -@ m/s ( -@ to -@ ) at W@ and -@ ( -@ to -@ ) m/s at W@ -RSB- , whereas no significant change was observed after atenolol -LSB- -@ m/s ( -@ to @ ) at W@ and -@ ( -@ to @ ) m/s at W@ -RSB- .