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Effects of strain counter-strain and stretching techniques in active myofascial pain syndrome
Somprasong S, Mekhora K, Vachalathiti R, Pichaiyongwongdee S
Journal of Physical Therapy Science 2011 Dec;23(6):889-893
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

PURPOSE: This study investigated the effect of passive stretching (STR) and strain counter-strain (SCS) techniques in subjects with myofascial pain syndrome (MPS) as measured by a visual analogue scale (VAS), pressure pain threshold (PPT), displacement pain threshold (DPT), active range of motion (AROM), and patients perception of change (PPC). SUBJECTS: Twenty volunteers with active MPS in the upper trapezius muscle participated in the study. METHODS: The subjects were randomly allocated to either a STR or SCS treatment group. Evaluations were performed at before, immediately, one hour, and one day after treatment. RESULTS: No significant difference between groups were found. However, there was a significant improvement of VAS an hour after SCS treatment. The improvement seemed to be maintained after treatment. The STR group showed a significant decrease of DPT between immediately and a day after treatment, indicating less tissue compliance. CONCLUSION: The SCS treatment helps relieve the pain one hour after treatment in subjects with active MPS.

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