Indexed on: 09 Nov '16Published on: 21 Oct '16Published in: Journal of bodywork and movement therapies
Publication date: Available online 21 October 2016 Source:Journal of Bodywork and Movement Therapies Author(s): Darren A. Smith, Jacob Saranga, Andrew Pritchard, Nikolaos A. Kommatas, Shinu Kovelal Punnoose, Supriya Tukaram Kale Background Mulligan’s mobilisation-with-movement (MWM) techniques are proposed to achieve their clinical benefit via neurophysiological mechanisms. However, previous research has focussed on responses in the sympathetic nervous system only, and is not conclusive. An alternative measure of neurophysiological response to MWM is required to support or refute this mechanism of action. Recently, vibration threshold (VT) has been used to quantify changes in the sensory nervous system in patients experiencing musculoskeletal pain. Objective To investigate the effect of a lateral glide MWM of the hip joint on vibration threshold compared to a placebo and control condition in asymptomatic volunteers. Methods Fifteen asymptomatic volunteers participated in this single-blinded, randomised, within-subject, placebo, control design. Participants received each of three interventions in a randomised order; a lateral glide MWM of the hip joint into flexion, a placebo MWM, and a control intervention. Vibration threshold (VT) measures were taken at baseline and immediately after each intervention. Mean change in VT from baseline was calculated for each intervention and then analysed for between group differences using a one-way analysis of variance (ANOVA). Results A one-way ANOVA revealed no statistically significant differences between the three experimental conditions (P=0.812). Conclusion This small study found that a lateral glide MWM of the hip did not significantly change vibration threshold compared to a placebo and control intervention in an asymptomatic population. This study provides a method of using vibration threshold to investigate the potential neurophysiological effects of a manual therapy intervention that should be repeated in a larger, symptomatic population.