The Effects of Passive Simulated Jogging on Short-Term Heart Rate Variability in a Heterogeneous Group of Human Subjects

Table 2

Effects of JD on HRV in seated and supine postures.

		Seated			Supine
		Sham	JD		Sham	JD
Heart Rate (bpm)
	BL	67(2)	69(3)		70(3)	66(2)
	REC	67(2)	69(3)		70(3)	65(2)
SDNN (ms)
	BL	43(4)	40(5)		49(6)	49(5)
	REC	41(3)	59(6)		54(5)	73(12)
RMSSD (ms)
	BL	36(5)	36(7)		37(5)	41(6)
	REC	42(7)	54(9)		28	66(14)
SD1 (ms)
	BL	26(4)	25(5)		26(4)	29(4)
	REC	29(5)	38(6)		20(3)	47(10)
SD2 (ms)
	BL	64(8)	50(6)		54(6)	61(6)
	REC	68(6)	73(7)		54	90(15)
LF nu
	BL	55(5)	51(3)		52(6)	47(4)
	REC	59(6)	54(5)		57(5)	50(4)
HF nu
	BL	35(3)	42(3)		37(4)	44(3)
	REC	32(4)	36(4)		34(4)	38(2)
LF/HF
	BL	2.6(0.8)	1.7(0.4)		2.7(0.8)	1.3(0.9)
	REC	3.7(1.0)	2.6(0.7)		2.9(0.8)	1.5(0.2)

Legend: HRV parameters in seated and supine postures. Standard deviation of all normal RR intervals (SDNN), square root of the mean of the sum of the squares of differences between adjacent NN intervals (RMSSD). Poincare parameters of SD1 and SD2, frequency domain parameters determined using a standard Fast Fourier spectral analysis calculated on the NN time intervals; low-frequency power (LF) high-frequency power (HF) LF, and HF powers are reported in normalized units (LFnu, and HFnu) Baseline (BL) and Recovery (REC) in seated and supine postures for Sham and JD. p < 0.05 BL vs. REC. Sham vs. JD. vs. Supine.