Computational and Mathematical Methods in Medicine

Research Article

Increase of Short-Term Heart Rate Variability Induced by Blood Pressure Measurements during Ambulatory Blood Pressure Monitoring

Table 2

values obtained by one-way ANOVA tests comparing HRV parameters (before (B) versus during (M), during (M) versus after (A), and before (B) versus after (A) BP measurements). Significant differences are written in italic; values marked with correspond to normalized parameters.


	SDNN			rMSSD
	B versus M	M versus A	B versus A	B versus M	M versus A	B versus A

24 hours	<10⁻⁵	<10⁻⁵	0.883	0.091	0.037	0.682
24 hours	<	<			0.030
Daytime	0.0008	0.0036	0.678	0.141	0.077	0.774
Daytime	0.0078	0.0032
Nighttime	<10⁻⁴	0.0015	0.506	0.336	0.214	0.759
Nighttime	<	0.0007

B, 2-minute interval ending when the blood pressure measurement begins; M, 2-minute interval starting when the blood pressure measurement begins; A, 2-minute interval starting two minutes after the moment when the blood pressure measurement begins.