RESULTS	Immediately after the PRBB ( 1 to 6 min ) , HRs were higher in Group P ( 73 + / - 11 bpm vs. 67 + / - 10 bpm ; p = 0.0075 ) , whereas the RRs were slower in Group R for the period 1 to 5 minutes after the PRBB ( 16 + / - 5 breaths/min vs. 14 + / - 4 breaths/min ; p = 0.0206 ) .\