1. Current Pain and Fear of Pain Contribute to Reduced Maximum Voluntary Contraction of Neck Muscles in Patients With Chronic Neck Pain 
René Lindstroem, DC, Thomas Graven-Nielsen, PhD, Deborah Falla, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 93, Issue 11, Pages (November 2012)
DOI: /j.apmr
Copyright © 2012 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Device for the measurement of multidirectional neck force. (A) The device is equipped with force transducers (strain gauges) to measure force in the sagittal and coronal planes. (B) Participants are seated with their head fixed in a headpiece. The head is rigidly secured via 8 contacts, which are fastened around the head. (C) Surface EMG were acquired from the sternocleidomastoid muscle bilaterally. (D) The subject's back and torso are firmly strapped to the seat back.
Reprinted from Clinical Neurophysiology. Volume 121, Issue 5. Falla D, Lindstrøm R, Rechter L, Farina D. Effect of pain on the modulation in discharge rate of sternocleidomastoid motor units with force direction. Pages Copyright 2010, with permission from Elsevier.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2012 American Congress of Rehabilitation Medicine Terms and Conditions