Document Detail

Stimulation of myofascial trigger points with ultrasound induces segmental antinociceptive effects: a randomized controlled study.
MedLine Citation:
PMID:  18508198     Owner:  NLM     Status:  MEDLINE    
Musculoskeletal pain affects a significant proportion of the general population. The myofascial trigger point is recognized as a key factor in the pathophysiology of musculoskeletal pain. Ultrasound is commonly employed in the treatment and management of soft tissue pain and, in this study, we set out to investigate the segmental antinociceptive effect of ultrasound. Subjects (n=50) with identifiable myofascial trigger points in the supraspinatus, infraspinatus and gluteus medius muscles were selected from an outpatient rehabilitation clinic and randomly assigned to test or control groups. Test subjects received a therapeutic dose of ultrasound to the right supraspinatus trigger point while control groups received a sham (null) exposure. Baseline pain pressure threshold (PPT) readings were recorded at the ipsilateral infraspinatus and gluteus medius trigger-point sites prior to ultrasound exposure. The infraspinatus point was chosen due to its segmental neurologic link with the supraspinatus point; the gluteus medius acted as a segmental control point. Following the ultrasound intervention, PPT readings were recorded at 1, 3, 5, 10 and 15 min intervals at both infraspinatus and gluteus medius trigger points; the difference between infraspinatus and gluteus medius PPT values, PPT seg, represents the segmental influence on the PPT. The ultrasound test group demonstrated statistically significant increases in PPT seg (decreased infraspinatus sensitivity) at 1, 3 and 5 min, when compared with PPT seg in the sham ultrasound group. These results establish that low-dose ultrasound evokes short-term segmental antinociceptive effects on trigger points which may have applications in the management of musculoskeletal pain.
John Z Srbely; James P Dickey; Mark Lowerison; A Michelle Edwards; Paul S Nolet; Leonard L Wong
Related Documents :
17310268 - Exercise-based motivational interviewing for female patients with fibromyalgia: a case ...
2254498 - Improved obstetric outcomes using hypnotic analgesia and skill mastery combined with ch...
17143898 - Retraining cervical joint position sense: the effect of two exercise regimes.
2971918 - Pain clinic #10. physical exercise in the treatment of low back pain. part ii: a practi...
16337518 - Pyridostigmine reduces qtc interval during recovery from maximal exercise in ischemic h...
7877158 - When to measure resting values in studies of children's cardiovascular reactivity.
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2008-05-27
Journal Detail:
Title:  Pain     Volume:  139     ISSN:  1872-6623     ISO Abbreviation:  Pain     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-20     Completed Date:  2009-01-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7508686     Medline TA:  Pain     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  260-6     Citation Subset:  IM    
Human Health and Nutritional Sciences, University of Guelph, Guelph, Ont., Canada.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Aged, 80 and over
Middle Aged
Myofascial Pain Syndromes / diagnosis*,  physiopathology,  prevention & control*
Pain Measurement*
Pain Threshold*
Treatment Outcome
Ultrasonic Therapy / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Kinetic and thermodynamic aspects of Cu(II) and Cr(III) removal from aqueous solutions using rose wa...
Next Document:  Restoration of weak phase-contrast images recorded with a high degree of defocus: the "twin image" p...