Table 2.

Correlation coefficients (r) between ventilatory and lactate thresholds at different times of day.

Variable	09:00 h	14:00 h	19:00 h
Time (sec)	0.62	0.77*	0.70
HR (b.min-1)	0.90**	0.92**	0.94**
VE (L.min-1)	0.71	0.74	0.88**
RER	0.59	0.69	0.56
VO2 ml.min-1)	0.88**	0.82*	0.89**
%VO2max	0.81*	0.85*	0.76*

* p<0.05,

** p<0.01.

HR= heart rate, VE= minute ventilation, RER= respiratory exchange ratio, %VO_2max= VO₂ relative to VO₂ max.