Figure 1.

Individual blood pressure responses from the experimental trial. The horizontal lines indicate the threshold for prehypertension for both systolic and diastolic blood pressure. All normotensive participants had systolic and diastolic blood pressures below the threshold, and all prehypertensive participants had a systolic blood pressure above the threshold. Although the mean diastolic blood pressure for the prehypertension group was below the threshold, most participants were at, or very near, the diastolic threshold. NT NHW, normotensive non-Hispanic White (n = 10 participants); PreHT NHW, prehypertensive non-Hispanic White (n = 10 participants); NT NHB, normotensive non-Hispanic Black (n = 10 participants); PreHT NHB, prehypertensive non-Hispanic Black (n = 10 participants).