Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 26073
  Title Reflex responses of neck, back, and limb muscles to high-velocity, low-amplitude manual cervical and upper thoracic spinal manipulation of asymptomatic individuals: A descriptive study
Journal J Manipulative Physiol Ther. 2019 Oct;42(8):572-581
Peer Review Yes
Publication Type Article

OBJECTIVE: The purpose of this research was to determine the extent of reflex responses after spinal manipulative therapy (SMT) of the cervical and upper thoracic spine.

METHODS: Eleven asymptomatic participants received 6 commonly used SMTs to the cervical and upper thoracic spine. Bipolar surface electromyography electrodes were used to measure reflex responses of 16 neck, back, and proximal limb muscles bilaterally. The percentage of occurrence and the extent of reflex responses of these muscles were determined.

RESULTS: Reflex responses after cervical SMT were typically present in all neck and most back muscles, whereas responses in the outlets to the arm and leg were less frequent. This trend was similar, although decreased in magnitude, after thoracic SMT.

CONCLUSION: Reflex responses were greatest after upper cervical SMT and lowest with thoracic SMT.

Author keywords: Manipulation, Chiropractic, Electromyography

Author affiliations: LMG, WH: Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; PJC: Private Practice, Calgary, AB, Canada

This abstract is reproduced with the permission of the publisher; full text is available by subscription. Click on the above link and select a publisher from PubMed's LinkOut feature.


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