Table 7: Pearson's correlation coefficient between heat stress and physiological indices.

Index Tcr (Aural) HR
r p-value r p-value
WBGT 0.317 0.002a 0.434 <0.001a
DI 0.019 0.859 0.229 0.03b

a, Significant at level p<0.01; b, Significant at level p<0.05