Table 1

Comparison of respiratory variables between laboratory test and field training

Laboratory max testDribbling trackSmall group play
Data are mean (SD).
Vo2max, Maximal oxygen uptake; fcmax, maximal heart rate; fbmax, maximal breathing frequency; Ve, ventilation; R, respiratory exchange ratio; Vco2, carbon dioxide output; Vo2, oxygen uptake; Than, anaerobic threshold.
*Significantly different from value obtained on dribbling track, p<0.05. All training and soccer play values are significantly different from the laboratory max test.
fc (beats/min)198.3 (7.9)185.5 (6.7)181.0 (4.4)*
Vo2 (litres/min)5.22 (0.68)4.74 (0.53)4.42 (0.61)
Vo2 (ml/kg/min)67.8 (7.6)62.2 (5.0)57.3 (3.9)
Vo2 (ml/0.75 kg/min)200.4 (19.4)181.8 (10.5)171.8 (10.0)
Than (ml/kg/min)50.9 (4.0)
Than (ml/0.75 kg/min)150.4 (7.7)
Than (beats/min)178.3 (8.8)
R (Vco2/Vo2)1.16 (0.07)0.99 (0.07)0.94 (0.07)
Ve (litres/min)174.6 (20.7)138.7 (21.3)132.0 (15.3)
fb (breaths/min)55.8 (6.4)49.6 (2.8)48.8 (7.2)