Effect of neck pain on verticality perception: A cohort study

Grod, Jaroslaw P; Diakow, Peter R. P.

doi:10.1053/apmr.2002.29660

Cited by 45 publications

(40 citation statements)

References 15 publications

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“…In a small number of people (5 -20%) the tilt of the frame has a major influence on the perception of visual vertical, these are described as Field Dependent [2][3][4][5]. The Rod and Frame test was originally developed as one component of personality testing, but it has also been used to investigate postural control [4], falls in the elderly [6], vestibular dysfunction [7,8] and neck pain [9,10].…”

Section: Introductionmentioning

confidence: 99%

Rod and Frame Alignment Times Increase When the Frame is Tilted

Bagust

Docherty

Razzak

2013

PBS

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Abstract:The Rod and Frame test measures an individual's subjective assessment of visual vertical and horizontal in the presence of a surrounding tilted frame. Attention has focused upon the effects of the surrounding frame upon spatial accuracy (Spatial Frame Effect). We have investigated if the tilted frame also affects the time that subjects take to make the alignment (Temporal Frame Effect). Results: 125 subjects performed a computerised Rod and Frame test to investigate the effects of a tilted frame on subjective visual vertical and horizontal. In addition the program recorded the time taken to make each alignment. For most subjects the mean Spatial Frame Effect was small (vertical 1.62, SD 0.93; horizontal 1.9, SD 1.43). The mean time taken to make alignments in the presence of a tilted frame was longer than when the frame was not tilted (vertical, +3.4s, SD 4.4; horizontal, +3.2s, SD 4.5). Differences in the times taken when the rod and frame were presented congruently and incongruently could be fully accounted for by the differences in steps needed to move the rod to its final alignment. No relationship was found between the spatial accuracy and the time to make the alignment and there was no relationship between the Spatial and Temporal Frame Effects. Conclusions: This study suggests that the Spatial, and Temporal, Frame Effects provide information about different aspects of the process of resolving conflicting visual information when making judgments on alignment. In everyday functions such as the maintenance of balance or susceptibility to motion sickness, the increased time taken may be as important as spatial accuracy.

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Section: Introductionmentioning

confidence: 99%

Rod and Frame Alignment Times Increase When the Frame is Tilted

Bagust

Docherty

Razzak

2013

PBS

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“…Visual vertical perception is used to damage to the central nervous system and vestibular networks such as in brain injury, stroke, or vestibular dysfunction [51][52][53][54] . In patients with neck pain, proprioceptive disturbances lead to difficulties in vertical perception and spatial orientations 23,25) since it stimulates the small afferent fibers of joint receptors or small segmental muscles around vertebral articulations influencing on the central nervous system and tonic neck reflex 55,56) , subsequently affecting spatial orientation 55) . It has been reported that muscle fatigue can activate pain by ischemia 13) .…”

Section: Discussionmentioning

confidence: 99%

“…Body movement and stability of postural control are related to vertical perception 21,22) . Mistakes by individuals with neck pain in judging the visual vertical in the rod and frame test have been reported [23][24][25] . Neck muscle pain is associated with neck muscle fatigue 26,27) .…”

Section: Introductionmentioning

confidence: 99%

Postural Stability and Visual Verticality Perception of Neck Disturbance of the Middle-aged during Quiet Standing

et al. 2013

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Abstract. [Purpose] This study investigated postural stability and visual vertical perception of healthy middleaged subjects before and after induction of dorsal neck muscle fatigue.[Subjects] Fourteen subjects (3 males, 11 females) were recruited from the community.[Methods] To induce neck extensor muscle fatigue, participants pushed their heads against a myometer. The average center of pressure (COP) displacement in the medial-lateral (ML) and anterior-posterior (AP) directions and average sway velocity were measured on a force platform, and the error in visual vertical perception was measured using the rod and frame test.[Results] The average COP displacement in the AP direction and average sway velocity were significantly different between before and after induction of neck muscle fatigue. No difference in the average COP displacement in the ML direction or errors in visual verticality perception was observed before and after neck muscle fatigue. [Conclusion] In the presence of visual input, dorsal neck muscle fatigue induced postural instability, but not visual vertical misperception. After isometric or repetitive neck extensor muscle contraction for a long period, taking a rest for a while before changing posture from sitting to standing is recommended for workers, to avoid an increase in postural sway in standing, which may lead to an accidental fall.

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“…[14][15][16] Clinical research shows a potential link between pain/dysfunction of the neuromusculoskeletal system and poor postural control/ balance and gait. 17,18 In a recent randomized controlled trial, improved gait (as measured by walking speed) was seen in hip OA patients after 5 weeks of manual therapy. 11 Improved balance and walking speed were seen in a case report where manual therapy was combined with exercise.…”

Section: Introductionmentioning

confidence: 99%