Cardiovascular Consequences of Repetitive Arousals over the Entire Sleep Duration

Table 3

Measurements of blood pressure, heart rate variability indices, and stiffness index.

	Control		Test
	Presleep	Postsleep	Presleep	Postsleep
SBP/mmHg	118 (6)	116 (6)	115 (6)	115 (7)
DBP/	80 (6)	79 (8)	80 (5)	83
LF/n.u.^▲	54 (16)	59 (13)	46 (17)	72 (12)^†
HF/n.u.^▼	46 (16)	41 (13)	54 (17)	28 (12)^‡
LHR^▲	1.2 (0.8, 1.8)	1.4 (1.1, 2.1)	0.7 (0.4, 1.4)	2.7 (1.8, 5.0)^†
ASI/m·s^−1	5.50 (0.44)	5.55 (0.31)	5.60 (0.43)	5.50 (0.45)

SBP, systolic blood pressure; DBP, diastolic blood pressure; LF, low frequency; HF, high frequency; n.u., normalized units; LHR, low frequency to high frequency ratio; ASI, arterial stiffness index. ^△The overnight change (postsleep – presleep) under the test condition is higher from that under the control condition with . ^▲The overnight change under the test condition is higher from the control condition with . ^▼The overnight change under the test condition decreases from the control condition with . sleep measurement is increased from the presleep level with . ^†Postsleep measurement increases from the presleep level with . ^‡Postsleep measurement is decreased from the presleep level with .