PMC

Fig. 2: Frequency distribution of maximal changes in systolic blood pressure (SBP) during hot-tub immersion in the normotensive and hypertensive groups.

Fig. 1: Systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate in hypertensive subjects (n = 21) (black circles) and normotensive subjects (n = 23) (white squares) before, during and after 10-minute immersion in a hot tub at 40°C. Error bars are standard error of the mean. Grey areas represent time spent in the hot tub.