Eythor Kristjansson

Eythor Kristjansson
University of Iceland | HI · Faculty of Medicine, Department of Physiotherapy

23.2
 · 
PhD

About

30
Publications
10,473
Reads
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1,317
Citations
Research Experience
January 2002 - January 2004
University of Iceland
Position
  •  Assistant professor
Description
  • Lectures and practical demonstrations for assessment and treatment of musculoskeletal disorders of the vertebral column, including the shoulder girdle, the TMJ, the pelvis and the hip joints. Practical demonstrations on patients.

Publications

Publications (30)
Article
In this study, the first normative database of movement control in the cervical spine has been established. For this purpose the Fly Test was used, which is a reliable and valid clinical test capable of detecting deficient movement control of the cervical spine in patients with neck pain and its associated disorders. One hundred and eighty-two asym...
Article
Uncertainty surrounds prognostic factors after whiplash injury. Previously we identified a prognostic model for 6-month pain-related disability in a cohort of 80 participants with acute whiplash. Predictors included initial disability, older age, decreased cold pain thresholds, decreased neck rotation movement, posttraumatic stress symptoms and dec...
Article
A longitudinal study was conducted to observe persons with neck pain after motor vehicle collisions. The aims were to reveal the prospective development of cervical kinaesthesia and to investigate the association between the test results and self-reported pain and disabilities. Two different cervical kinaesthetic tests, the Fly test and the Head-Ne...
Article
Altered activity in the axioscapular muscles is considered to be an important feature in patients with neck pain. The activity of the serratus anterior (SA) and trapezius muscles during arm elevation has not been investigated in these patients. The objectives of this study was to investigate whether there is a pattern of altered activity in the SA...
Article
Full-text available
Clinical theory suggests that altered alignment of the shoulder girdle has the potential to create or sustain symptomatic mechanical dysfunction in the cervical and thoracic spine. The alignment of the shoulder girdle is described by two clavicle rotations, i.e, elevation and retraction, and by three scapular rotations, i.e., upward rotation, inter...
Article
Full-text available
Background: Neck stiffness and limited range of motion in the neck can be painful and can impede performing activities of daily living (ADL). General cervical range of motion (CROM) tests are considered accurate assessment of neck movements. However, traditional CROM tests are performed in the sagittal, transverse and frontal planes but neck moveme...
Article
Full-text available
Background: The Neck Pain Task Force (NPTF) invites a constructive dialogue on how to best decrease the personal and societal burden of neck pain and its associated disorders. A critical review of the NPTF own literature synthesis on the onset and epidemiology of whiplash associated disorders (WAD) is well suited to ascertain whether the NPTP has a...
Article
Full-text available
Background There is insufficient knowledge of pathophysiological parameters to understand the mechanism behind prolonged whiplash associated disorders (WAD), and it is not known whether or not changes can be restored by rehabilitation. The aims of the projects are to investigate imaging and molecular biomarkers, cervical kinaesthesia, postural sway...
Article
Full-text available
Background: No study has been conducted to ascertain whether the load-bearing capacity of the cervical spine is reduced in vivo in late whiplash syndrome (LWS). Aim: To compare the segmental cervical angular values across C0-C6, between two conditions: without versus with external axial load upon the head in three groups of women. Design: A si...
Article
Background: No research exists for the long-term course of deficient cervical kinaesthesia following a whiplash injury. Prior results depicted two divergent courses of deficient cervical kinaesthesia at 1 year. Objectives: First, to determine the actual course(s) of untreated deficient cervical kinaesthesia from 1 year to 6-8 years post-collisio...
Article
Full-text available
Cross-sectional design. To investigate whether the Fly Test can be used to differentiate patients with whiplash-associated disorders (WAD) from asymptomatic persons who deliberately feign symptoms and from WAD patients exaggerating symptoms. The lack of valid clinical tests makes it difficult to detect a justifiable cause for compensation claims in...
Article
Full-text available
Test-retest and case-control study designed to detect accuracy of cervical spine movements by comparing 3 incrementally difficult movement patterns. An asymptomatic group, a nontrauma neck pain group, and a group with whiplash-associated disorders, Grade II, were tested (n = 18 in each group). To determine the test-retest reliability and the discri...
Article
A new method is proposed for detecting fraudulent whiplash claims based on measurements of movement control of the neck. The method is noninvasive and inexpensive. The subjects track a slowly moving object on a computer screen with their head. The deviation between the measured and actual trajectory is quantified and used as input to an ensemble of...
Article
Full-text available
Controlled laboratory study using a cross-sectional design. To investigate whether there is a pattern of altered scapular orientation during arm elevation in patients with insidious onset neck pain (IONP) and whiplash-associated disorder (WAD) compared to asymptomatic people. Altered activity in the axioscapular muscles and impairments in scapular...
Article
Full-text available
Synopsis: The term sensorimotor describes all the afferent, efferent, and central integration and processing components involved in maintaining stability in the postural control system through intrinsic motor-control properties. The scope of this paper is to highlight the sensorimotor deficits that can arise from altered cervical afferent input. F...
Article
Full-text available
Introduction. A questionnaire-based, cross-sectional study with an 18-month follow-up telephone interview was designed to determine whether symptom characteristics differ in women presenting with chronic (> 6 months) neck pain related to whiplash associated disorder (WAD), grades I-II (n = 41) and chronic insidious onset neck pain (IONP) (n = 39)....
Article
A test-retest and inter-tester study was designed to assess the reliability of ultrasonography to depict the size of the cervical multifidus muscle in asymptomatic and symptomatic subjects. Ten asymptomatic women (range 19-48 years) and 10 women with chronic whiplash associated disorder (WAD), grade II, (range 19-49 years), matched for height and w...
Article
Full-text available
There has been little investigation into whether or not differences exist in the nature of physical impairment associated with neck pain of whiplash and insidious origin. This study examined the neck flexor synergy during performance of the cranio-cervical flexion test, a test targeting the action of the deep neck flexors. Seventy-five volunteer su...
Thesis
Full-text available
The studies upon which this thesis is based were intended to identify measurable physical impairment in the stability system of the cervical spine in patients with chronic whiplash-associated disorders (WAD), grades I-II. Case-control and test-retest designs were used to identify and define the clinical characteristics investigated. Questionnaires...
Article
To investigate the reliability and discriminative ability of a new test designed to detect accuracy of neck movements. Repeated-measures. Case-control. University musculoskeletal research clinic in Iceland. Twenty women (mean age +/- standard deviation [SD], 30.8+/-9.1 y; range, 18-49 y) with chronic whiplash-associated disorders (WAD) grades I and...
Article
Full-text available
Introduction. A questionnaire-based, cross-sectional study with an 18-month follow-up telephone interview was designed to determine whether symptom characteristics differ in women presenting with chronic (> 6 months) neck pain related to whiplash associated disorder (WAD), grades I-II (n = 41) and chronic insidious onset neck pain (IONP) (n = 39).M...
Article
Full-text available
To compare head relocation accuracy in traumatic (whiplash), insidious onset neck pain patients and asymptomatic subjects when targeting a natural head posture (NHP) and complex predetermined positions. A case-control study. University-based musculoskeletal research clinic. Sixty-three volunteers divided into three groups of similar gender and age:...
Article
Case-control study comparing sagittal plane segmental motion in women (n = 34) with chronic whiplash-associated disorders, Grades I-II, with women (n = 35) with chronic insidious onset neck pain and with a normal database of sagittal plane rotational and translational motion. To reveal whether women with chronic whiplash-associated disorders, Grade...
Article
To reveal whether women with chronic whiplash-associated disorder (WAD) symptoms, grade I-II, demonstrate regional and/or segmental radiographic signs of altered cervical lordosis. Case-control study. Radiography department at a university hospital. Three age-balanced groups comprising 120 women. The case group included women with chronic whiplash...
Article
Relocating either the natural head posture (NHP) or predetermined points in range are clinical tests of impaired neck proprioception but memory might influence these tests. Three new tests, reasoned to be more challenging for the proprioceptive system, were developed. The objectives were to assess the reliability of all tests and whether the three...

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