Figure 1.

Physiological and perceptual responses obtained during the 5-day cold-acclimation regimen (n = 7 men). Mean [95% confidence interval] and individual values of the final changes in rectal temperature (ΔT_rec; changes are relative to baseline values) (A), whole body thermal comfort (B), skin temperature of the right-hand fingers (T_F-avg) (C), right-hand thermal sensation (D), metabolic heat production ($\dot{M}$) (E), shivering thresholds (F), mean arterial pressure (MAP) (G), and heart rate (HR) (H). Physiological data were analyzed with one-way repeated-measures ANOVA, followed by Dunnett’s post hoc test. Perceptual data were analyzed with Friedman’s test, followed by Wilcoxon signed-rank test (P ≤ 0.05). ^aSignificantly different from the 1st session.