Table 6

 Correlation coefficients between tennis field (FT) and treadmill (TT) tests for the maximum values of the various parameters attained by tennis players at the termination of the exercise

Bf, breathing frequency; HR, heart rate; [La], blood lactate concentration; RER, respiratory exchange ratio; RPE, rating of perceived exertion; Te, time to exhaustion; VCO2, carbon dioxide production; VE, minute ventilation; VO2, oxygen uptake; Vt, tidal volume.
r Value0.580.620.120.730.600.700.940.210.780.15
p Value0.1040.0770.7560.0250.1170.0340.0010.5910.0140.725