Jace Brown, Gary Kearns, Kelli Brizzolara, Mark Weber, Sharon Wang-Price
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引用次数: 0
Abstract
Background: Individuals with shoulder pain have a higher occurrence of myofascial trigger points (MTrPs). In the past decade, dry needling (DN) has been used in physical therapy practice to treat MTrPs. Impaired blood flow is proposed as an underlying mechanism of MTrPs in neck-shoulder pain. However, whether DN would improve muscle blood flow in individuals with shoulder pathology has not been examined. Therefore, the primary purpose of this study was to use color Doppler imaging to examine the effects of DN on the blood flow of the infraspinatus muscle in individuals with shoulder pain. The secondary purpose was to examine the effects of DN on sensitivity to pressure and shoulder range of motion (ROM) of the infraspinatus muscle in individuals with shoulder pain.
Method: This randomized comparison trial utilized a sham-controlled design. Forty individuals with nonspecific shoulder pain and at least one MTrP in the infraspinatus muscle were randomly assigned to a real DN group or a sham DN group. Outcome measures, including blood flow parameters, ROMs of shoulder internal rotation and external rotation, and pressure pain threshold (PPT) were collected before and immediately after a single session of DN.
Results: The repeated measure ANOVA results revealed that real DN significantly decreased peak systolic velocity (PSV) and increased shoulder internal and external rotation ROM more than sham DN (p < 0.05). However, there were no significant differences in end diastolic velocity, resistive index, pulsatile index, and PPTs between real DN and sham DN (p > 0.05).
Conclusion: The results indicated that participants who received real DN exhibited a significant reduction in PSV, suggesting improved blood flow to the infraspinatus muscle. Participants who received real DN exhibited improvements in shoulder ROM but showed no reductions in sensitivity to pressure. These results may provide clinicians with evidence for the use of DN for individuals with shoulder pain.
期刊介绍：
The Journal of Manual & Manipulative Therapy is an international peer-reviewed journal dedicated to the publication of original research, case reports, and reviews of the literature that contribute to the advancement of knowledge in the field of manual therapy, clinical research, therapeutic practice, and academic training. In addition, each issue features an editorial written by the editor or a guest editor, media reviews, thesis reviews, and abstracts of current literature. Areas of interest include: •Thrust and non-thrust manipulation •Neurodynamic assessment and treatment •Diagnostic accuracy and classification •Manual therapy-related interventions •Clinical decision-making processes •Understanding clinimetrics for the clinician
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