Table 2.

Intra- and inter-group analysis of the mean maximal inspiratory pressure and distance walked in the 6MWD minutes of patients undergoing cardiac surgery.

	Preoperative Period	Discharge	P
MIP
Control	97.5±18.2	69.5±14.9	0.00001
Training	94.2±16.2	83.1±19.1	<0.01
P	0.49	0.0073
6MWD
Control	499.6 ± 114.3	422.4 ± 102.8	0.0001
Training	516 ± 114.8	502.4 ± 112.8	<0.01
P	0.60	0.0031

MIP=maximal inspiratory pressure; 6MWD=six-minute walk test Data presented as mean ± standard deviation. Student t test for paired intragroup analysis. Student's t-test for intergroup analysis.