Spatially defined disruption of motor imagery performance in people with osteoarthritis

Abstract

Motor imagery performance is disrupted in patients with knee OA, but is also disrupted in patients with arm pain. Accuracy of left/right judgements is disrupted in a spatially defined manner, raising the important possibility that brain-grounded maps of peripersonal space contribute to the cortical proprioceptive representation.

Laterality judgments in people with low back pain – A cross-sectional observational and test–retest reliability study

“…Our findings of no group differences between the LBP and control groups and no association between leg pain and foot laterality judgments contradict previous studies that have reported impaired performance in LBP (Bray and Moseley, 2011;Bowering et al, 2014) as well as association between lower limb pain and impaired performance on foot laterality judgments (Coslett et al, 2010b;Stanton et al, 2012). Regarding trunk laterality, Bray and Moseley (2011) reported substantial impairments in the presence of LBP but no association with pain intensity, while Bowering et al (2014) found prominent impairment in those with both present and past history of LBP.…”

“…While Bowering and colleagues (2014) reported no significant impact of age on a trunk laterality task, several other studies have found impaired laterality judgment performance related to older age (Saimpont et al, 2009;Stanton et al, 2012;Wallwork et al, 2013).…”

“…Decreased accuracy in laterality judgments of the trunk has also been demonstrated in people with LBP (Bray and Moseley, 2011;Bowering et al, 2014). Findings among subjects with leg and arm pain have indicated that body schemas may be affected in a spatial rather than anatomical manner (Stanton et al, 2012) suggesting a broader impact of LBP on the body schema into areas other than the back. However, the relationship between impairments in laterality judgment and pain has not been consistently demonstrated; neither Richter et al (2010) or Pedler et al (2013) found impairments of laterality judgment ability of the hand or neck in subjects with chronic neck pain.…”

“…A commercially available web-based instrument, Recognise Online TM , is currently in clinical use M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 2 and has been utilised for research purposes assessing laterality judgment ability in LBP (Bray and Moseley, 2011;Bowering et al, 2014), whiplash syndrome (Pedler et al, 2013;Elsig et al, 2014), osteoarthritis of the knee (Stanton et al, 2012) and also in healthy children (Dey et al, 2012). The reliability of laterality judgments in LBP has been examined by Bray and Moseley (2011) who, using Recognise Online TM , investigated test-retest reliability of trunk and hand laterality judgments in an LBP population as well as among healthy controls.…”

Movement restriction does not modulate sensory and perceptual effects of exercise-induced arm pain

“…Evidence also suggests disruptions in motor imagery performance (i.e. the mental execution of a movement) (Bowering et al 2014;Moseley 2008;Stanton et al 2012), considered a surrogate measure of cortical proprioceptive representation (Wallwork et al 2013a;Wallwork et al 2013b; and see Moseley and Flor 2012;Wand et al 2011 for reviews).…”