Visual information without thermal energy may induce thermoregulatory-like cardiovascular responses

Table 3 Results of correlation analysis: room air temperature

Indices	Intra-individual correlation coefficients(r)	P value for null hypothesis is that common coefficienta = 0	Significance
ΔHR	-0.149	0.103
ΔSV	+0.179	0.049	^**
ΔCO	+0.131	0.152
ΔSBP	+0.046	0.614
ΔDBP	+0.016	0.860
ΔMBP	+0.032	0.725
ΔTPR	-0.052	0.571
ΔHF	+0.089	0.331
ΔLF	+0.159	0.082	^*
ΔVLF	-0.082	0.373
Thermal sensation	+0.218	0.016	^**

Correlation coefficients between each index and room air temperature. Positive correlations mean the warmer the temperature, the greater the indices. ^*P <0.1; ^**P <0.05. Changes from baseline: ΔHR, heart rate; ΔSV, stroke volume; ΔCO, cardiac output; ΔSBP, systolic blood pressure; ΔDBP, diastolic blood pressure; ΔMBP, mean blood pressure; ΔTPR, total peripheral resistance; ΔHF, high frequency HRV; ΔLF, low frequency HRV; and ΔVLF, very low frequency of HRV. HRV, heart rate variability.

ISSN: 1880-6805