The mean ( + / - SD ) respiratory rate in group M at T ( 2 ) ( 32 + / - 9 breaths/min ) was significantly higher ( p < 0.001 ) than at T ( 0 ) ( 19 + / - 6 breaths/min ) and also was higher ( p < 0.01 ) than in group V at T ( 2 ) ( 19 + / - 6 breaths/min ) .
