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Table 1 Average scores of cardiovascular baseline components before treatment measured during the two sessions of treatments between SMT and SHAM

From: Effect of spinal manipulative treatment on cardiovascular autonomic control in patients with acute low back pain

Autonomic cardiac components (n = 17)

SMT (n = 10)

SHAM (n = 7)

Significance

RR period (ms)

826 (47)

847 (43)

0.481

RMSSD (ms)

38.9 (2.18)

39.2 (2.3)

0.931

Log LF-RR (ms2)

3.08 (0.06)

3.10 (0.09)

0.652

Log HF-RR (ms2)

3.00 (0.04)

3.10 (0.04)

0.151

LF/HF

1.26 (0.15)

1.08 (0.16)

0.429

100.LF/(LF + HF) %

54.3 (2.7)

50.4 (3.5)

0.393

100.HF/(LF + HF) %

46.7 (2.7)

49.6 (3.5)

0.393

SBP (mm Hg)

118 (4)

122 (2)

0.422

LF-SBP (mm2Hg)

11.15 (0.75)

12.78 (0.71)

0.151

HF-SBP (mm2Hg)

1.44 (0.31)

2.02 (0.39)

0.254

LF-BRS gain

14.20 (1.12)

13.84 (1.05)

0.826

HF-BRS gain

20.21 (2.35)

21.42 (2.10)

0.720

  1. There is no significant difference between groups (SMT vs. SHAM)
  2. SMT spinal manipulative treatment, RMSSD root mean square of the successive differences, LF low frequency, HF high frequency, SBP systolic blood pressure, BRS baroreflex sensitivity. Data are presented as mean (SEM)