Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 25020
  Title Effect of spinal manipulative treatment on cardiovascular autonomic control in patients with acute low back pain
Journal Chiropr & Manual Ther. 2017 ;25(33):Online access only
Peer Review Yes
Publication Type Article

Background: This study aimed to quantify the effect of spinal manipulative treatment (SMT) from an analysis of baroreflex, systolic blood pressure and heart rate variability (HRV) on patients with acute back pain. It was hypothesized that SMT would increase the parasympathetic cardiovascular autonomic control.

Methods: Twenty-two patients with acute back pain were randomly divided into two groups: one receiving sham treatment (Sham) and the other receiving SMT. Recordings were completed during the first day and the seventh day, immediately before and after treatment on both days. ECG and systolic blood pressure were continuously recorded to compute cardiovascular variability and baroreflex sensitivity components. The perceived level of pain was measured with the numeric pain scale (NPS) 48 h before, just before and just after each treatment. The NPS ranged from 0 to 100% (peak of pain before treatment). ECG and systolic blood pressure recordings were analyzed in time frequency domain using the Smoothed pseudo Wigner-Ville distribution.

Results: Root mean square of the successive differences, high frequency power of the heart rate variability, and high frequency baroreflex sensitivity differences between post and pre tests were higher in the SMT group than in the Sham group (p < 0.01), whereas no differences were observed with the other heart rate variability components. Also, no differences were observed with the systolic blood pressure components. Although the estimated pain scale values decreased over time, no difference was observed between the SMT and Sham groups.

Conclusions: This seems to be the first study to assess the effect of SMT on both heart rate variability and baroreflex sensitivity in patients with acute back pain. SMT can be seen to provoke an increase in parasympathetic control known to relate to a person’s healthy state. Thus, cardiovascular variability analysis may be a useful tool for clinicians to quantify and objectify the beneficial effects of spinal manipulation treatment.

Author keywords: Baroreflex — Blood pressure — Heart rate — Autonomic nervous system — Back pain — Spinal manipulation — Randomized study — Pain scale

Author affiliations: Université Paris Sud. CIAMS; Université Paris-Saclay; ESO Paris SUPOSTEO; (France / Paris)

This abstract is reproduced with the permission of the publisher. Click on the above link for free full text. PubMed Record


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