A simultaneous improvement in the functional capacity tests [ 6-min walk test ( p < 0.001 ) , time up and go test ( p < 0.001 ) , arm curl test ( p < 0.001 ) , sit and stand test ( p < 0.001 ) , 2-min step test ( p < 0.001 ) and back scratch test ( p = 0.042 ) ] was also found in patients who were submitted to the exercise .