Figure 1.

Muscle sympathetic nerve activity (MSNA), mean blood pressure (BP), heart rate (HR), and femoral blood flow responses to 5 min of continuous hypoxia and the cold pressor test. Data are shown as changes from baseline (last minute of stressor minus baseline) in each group. Bar graphs show group mean ± SEM; dots represent individual subjects. Between group analysis of variance were performed using Kruskal‐Wallis test with Dunn's multiple comparisons. Young men, YM; young women, YW; older women, OW.