During exercise , mean E/e ' increased from 9.0 ( 2.8 ) to 12.8 ( 7.7 ) ( p = 0.09 ) , E/A increased from 2.1 ( 0.6 ) to 2.6 ( 0.7 ) ( p = 0.02 ) , and deceleration time decreased by over 50 ms , all markers of increased filling pressure .