Table 2.

Repeated Measurements Separated by a 2-Minute Resting Period in the Laboratory Setting

Test	Pearson r	Mean difference	95% confidence interval	p
30:15	0.85	-0.03	-0.08–0.01	Not significant
Valsalva ratio	0.86	0.01	-0.03–0.05	Not significant
E:I	0.91	0.02	-0.07–0.05	Not significant