Index to Chiropractic Literature
Index to Chiropractic Literature
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Monday, August 10, 2020
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ID 24039
  Title Evaluation of palpation, pressure algometry, and electromyography for monitoring trigger points in young participants
URL http://www.ncbi.nlm.nih.gov/pubmed/25616692
Journal J Manipulative Physiol Ther. 2015 Mar-Apr;38(3):232-243
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

Objective: The aims of this study were to assess trigger points (TrPs), their pain threshold, and the activity of motor units in the neck and shoulder girdle muscles of young volunteers and to assess palpation, algometry, and surface electromyography (EMG) for their detection.

Methods: Seventy participants aged from 19 to 26 years (20.6 ± 1.4 years [mean ± SD]) were examined to identify TrPs through palpation, an algometer test for pressure pain threshold (PPT), a test for the activity of muscle motor units at rest (rEMG) and at maximal contraction (mcEMG) with surface EMG recordings.

Results: Palpation studies revealed numerous symmetrical nonreferring latent TrPs (379/560 performed tests), referring latent TrPs (91/560), and few active TrPs (4/560). Algometry confirmed the lowest PPT in active TrPs and the highest PPT in participants with no TrPs (86/560). Pressure pain thresholds were lower in nonpregnant women than in men, especially in the trapezius and sternocleidomastoid muscles with nonreferring and referring latent TrPs. Trigger points evoked a moderate increase of rEMG amplitude but with no evident changes in mcEMG.

Conclusions: This study showed that the preliminary algometry and rEMG recordings monitored a decrease in PPT and an increase in muscle tension in all cases of TrPs in each of the 3 types detected in people younger than 30 years.

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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