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Does postural sway change in association with manual therapeutic interventions? A review of the literature

Ruhe, A., Fejer, R. and Walker, B. (2013) Does postural sway change in association with manual therapeutic interventions? A review of the literature. Chiropractic & Manual Therapies, 21 (1).

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Abstract

Study design
Literature Review

Objectives
The objective of this literature review was to determine if postural sway changes in association with manual therapeutic interventions and to investigate whether any changes occur in healthy individuals or in association with pain intensity.

Summary of Background data
Improving postural stability has been proposed as a goal of manual therapeutic interventions. So far, no literature review has addressed whether there is supportive evidence for this and if so, what factors may be associated or causative for observed sway alterations.

Search methods
Seven online databases (PubMed, MEDLINE, EMBASE, CINAHL, Web of Science, ScienceDirect and the Cochrane library) were systematically searched followed by a manual search of the retrieved papers.

Selection criteria
Studies comparing postural sway derived from bipedal force plate measurements in association with a manual therapeutic intervention, ideally compared to a control group.

Data collection and analysis
Two reviewers independently screened titles and abstracts for relevance, conducted the data extraction and the risk of bias assessment which was conducted using the RTI item bank. A descriptive analysis was conducted as the heterogeneous study designs prevented pooling of data.

Results
Nine studies of varying methodological quality met the inclusion criteria. No direct comparison of data across the studies was possible. There was no evidence that manual interventions lead to a change in postural sway in healthy individuals regardless of the body regions addressed by the intervention. There was some indication that postural sway may change at follow-up measurements in pain sufferers; however, this may be due to variations in pain intensity rather than resulting from the intervention itself.

Conclusions
There is no conclusive scientific evidence that manual therapeutic interventions may exhibit any immediate or long-term effect on COP excursions. Any changes in sway may be attributable to decreases in pain intensity.

Publication Type: Journal Article
Murdoch Affiliation: School of Health Professions
Publisher: Pubmed Central
Copyright: © 2013 Ruhe et al
URI: http://researchrepository.murdoch.edu.au/id/eprint/13772
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