Index to Chiropractic Literature
Index to Chiropractic Literature
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Friday, April 26, 2024
Index to Chiropractic LiteratureIndex to Chiropractic LiteratureIndex to Chiropractic Literature
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ID 19605
  Title The impact of chiropractic adjustments on intracranial blood flow: A pilot study
URL http://www.vertebralsubluxationresearch.com
Journal J Vert Sublux Res. 2007 ;MAY(21):Online access only p1-8
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes Background: A limited number of studies have addressed the impact of extracranial vascular blood flow and positional changes of the cervical spine. Fewer have addressed the specific effects of chiropractic adjustments and vertebral artery blood flow via Doppler Ultrasound techniques. Identifying the effects on blood flow may prove helpful in identifying the relationship of flow to mechanism of action and subsequent application of chiropractic care to vascular health and the onset of disease.

Objective: To investigate the effect of a single chiropractic adjustment on middle cerebral artery blood flow and radial artery blood pressure response.

Design and Setting: A randomized controlled study involving 20 healthy chiropractic students. Data were analyzed utilizing a two-group repeated measures ANOVA with 6 levels followed by a post hoc multiple comparison analysis.

Results: A transient but significant change in middle cerebral artery blood flow occurred in subjects receiving a chiropractic adjustment. Peak flow was reached within one minute of receiving the adjustment and returned to baseline values by minute five. A single cervical adjustment had no effect on systolic or diastolic blood pressure.

Conclusion: This Doppler study looked at the effect of a chiropractic adjustment on intracranial blood flow. The results indicate that asymptomatic subjects experience small, transient increase in blood flow immediately following an adjustment.

This abstract is reproduced with the permission of the publisher; full text by subscription.
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