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Effects of a single myofascial induction session on neural mechanosensitivity in breast cancer survivors: a secondary analysis of a crossover study [with consumer summary]
Castro-Martin E, Galiano-Castillo N, Ortiz-Comino L, Cantarero-Villanueva I, Lozano-Lozano M, Arroyo-Morales M, Fernandez-Lao C
Journal of Manipulative and Physiological Therapeutics 2020 May;43(4):394-404
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; 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*

OBJECTIVES: The purpose of this study was to investigate the short-term effects of myofascial induction on mechanosensitivity of upper limb nerves. METHODS: In this secondary analysis of a randomized, single-blind, placebo-controlled crossover study, 21 breast cancer survivors with stage I to IIIA cancer were randomly allocated to an experimental group (30 minutes of myofascial induction session) or placebo control group (unplugged pulsed 30 minutes of shortwave therapy), with a 4-week washout period between sessions that occurred in a physical therapy laboratory in the Health Science Faculty (University of Granada, Spain). Range of motion (universal goniometry), structural differentiation, symptoms (yes/no), and pressure pain thresholds (electronic algometry) were assessed during neurodynamic tests and attitude toward massage scale as covariate. RESULTS: An analysis of covariance revealed significant time x group interactions for range of motion in affected upper limb nerves (median p < 0.001; radial p = 0.036; ulnar p = 0.002), but not for nonaffected upper limb nerves (median p = 0.083; radial p = 0.072; ulnar p = 0.796). A Chi2 or Fisher exact test, as appropriate, also revealed a significant difference (p = 0.044) in sensitivity for the affected upper limb ulnar nerve in the experimental group, whereas the rest of the assessed nerves (affected and nonaffected upper limb nerves) showed no significant changes in either the experimental or control groups (p > 0.05). An analysis of covariance revealed no significant interactions on pressure pain thresholds over the nerves for affected (all p > 0.05) and nonaffected (all p > 0.05) upper limb nerves. CONCLUSION: A single myofascial induction session may partially improve mechanosensitivity of median, radial, and ulnar nerves and yield positive effects on symptom mechanosensitivity, especially regarding the ulnar nerve in breast cancer survivors.
Reprinted from the Journal of Manipulative and Physiological Therapeutics with copyright permission from the National University of Health Sciences.

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