Compression rate fell with all devices ( pressure sensor device 114.68-98 .84 min ( -1 ) , p = 0.001 , accelerometer 112.04-102 .92 min ( -1 ) , p = 0.072 and metronome 108.24 min ( -1 ) vs. 99.36 min ( -1 ) , p = 0.009 ) .