However , postoperatively the group with shortened fasting had higher values than the group with conventional fasting for lung function tests peak expiratory flow ( 128.762.5 versus 115.759.9 ; p = 0.040 ) , forced expiratory volume in the first second ( 1.50.6 versus 1.20.5 ; p = 0.040 ) , forced vital capacity ( 2.31.1 versus 1.80.9 ; p = 0.021 ) , and for muscle function tests dominant handgrip strength ( 24.96.8 versus 18.47.7 ; p = 0.001 ) and non-dominant handgrip strength ( 22.96.3 versus 17.07.8 ; p = 0.0002 ) .