Table 2.

Temperature-related changes in the HRV during rewarming

Frequency band	Change in power associated with a 1° C increase in temperature	Lower bound of the 95% CI	Upper bound of the 95% CI	<p value
VLF, dB	−0.249	−0.905	0.409	0.459
LF, dB	−0.480	−0.907	−0.052	0.028
HF, dB	−0.938	−1.416	−0.460	<0.001
LF/HF	0.024	0.013	0.035	<0.001

VLF = Very low frequency; LF = low frequency; HF = high frequency.