Quantification of prone thoracic manipulation using inertial sensor–derived accelerations

Williams, Jonathan Mark & Cuesta-Vargas, Antonio (2014) Quantification of prone thoracic manipulation using inertial sensor–derived accelerations. Journal of Manipulative and Physiological Therapeutics, 37(4), pp. 230-235.

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The aim of this study was to determine the linear acceleration, time-to-peak acceleration, and effect of hand position comparing 2 clinicians completing a thoracic manipulation.


Thirteen volunteers received a right- and left-“handed” prone thoracic manipulation while accelerations were recorded by an inertial sensor. Peak thrust acceleration and time-to-peak thrust were measured.


There were differences in thrust acceleration between right- and left-handed techniques for one therapist. The mean peak thrust acceleration was different between therapists, with the more practiced therapist demonstrating greater peak thrust accelerations. Time-to-peak acceleration also revealed between therapist differences, with the more practiced therapist demonstrating shorter time-to-peak acceleration. Cavitation data suggested that manipulations with greater accelerations were more likely to result in cavitation.


The results of this study suggest that with greater frequency of use, therapists are likely to achieve greater accelerations and shorter time-to-peak accelerations. Furthermore, this study showed that an inertial sensor can be used to quantify important variables during thoracic manipulation and are able to detect intertherapist differences in technique.

Impact and interest:

5 citations in Scopus
4 citations in Web of Science®
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ID Code: 85600
Item Type: Journal Article
Refereed: Yes
Keywords: Spine, Biomechanics, Manual Therapy
DOI: 10.1016/j.jmpt.2014.02.002
ISSN: 1532-6586
Divisions: Current > Schools > School of Clinical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Deposited On: 16 Jul 2015 06:58
Last Modified: 17 Jul 2015 00:12

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