tokens: Maximal twitches of the diaphragm were lower in the C group ( 653 + / - 174 g / cm ( 2 ) ) than in the M group ( 837 + / - 171 g / cm ( 2 ) ; p < 0 . 05 ) and the T group ( 765 + / - 145 g / cm ( 2 ) , NS ) .