However , patients who already participated in regular sports or exercise at baseline ( n = 23/40 ( 58 % ) ) showed higher V'Opeak of 13 % of predicted ( 95 % CI 4 % to 23 % ; p > .01 ) and a decrease of 62 % in plasma NT-proBNP ( 95 % CI -115 % to -10 % ; p > .03 ) during follow-up , when compared to patients who did not .