Neck motion patterns in whiplash-associated disorders: Quantifying variability and spontaneity of movement

Bertomeu, José María Baydal; Page, Álvaro; Lois, Juan Manuel Belda; Garrido-Jaén, David; Prat, Jaime

doi:10.1016/j.clinbiomech.2010.08.008

Cited by 47 publications

(79 citation statements)

References 20 publications

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“…For the EFN and FBN movements we also found reduced displacement, peak acceleration, deceleration and velocity at the preferred (P) movement speed to be different between groups, which are consistent with previous observations [14]. Thus, even though the WAD participants held a large reserve capacity in movement velocity as displayed by the result of the M speed test, they preferred to move at a lower velocity than the controls for the P speed test.…”

Section: Resultssupporting

confidence: 91%

Muscle activity and head kinematics in unconstrained movements in subjects with chronic neck pain; cervical motor dysfunction or low exertion motor output?

Vikne

Bakke

Liestøl

et al. 2013

BMC Musculoskelet Disord

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BackgroundChronic neck pain after whiplash associated disorders (WAD) may lead to reduced displacement and peak velocity of neck movements. Dynamic neck movements in people with chronic WAD are also reported to display altered movement patterns such as increased irregularity, which is suggested to signify impaired motor control. As movement irregularity is strongly related to the velocity and displacement of movement, we wanted to examine whether the increased irregularity in chronic WAD could be accounted for by these factors.MethodsHead movements were completed in four directions in the sagittal plane at three speeds; slow (S), preferred (P) and maximum (M) in 15 men and women with chronic WAD and 15 healthy, sex and age-matched control participants. Head kinematics and measures of movement smoothness and symmetry were calculated from position data. Surface electromyography (EMG) was recorded bilaterally from the sternocleidomastoid and splenius muscles and the root mean square (rms) EMG amplitude for the accelerative and decelerative phases of movement were analyzed.ResultsThe groups differed significantly with regard to movement velocity, acceleration, displacement, smoothness and rmsEMG amplitude in agonist and antagonist muscles for a series of comparisons across the test conditions (range 17 – 121%, all p-values < 0.05). The group differences in peak movement velocity and acceleration persisted after controlling for movement displacement. Controlling for differences between the groups in displacement and velocity abolished the difference in measures of movement smoothness and rmsEMG amplitude.ConclusionsSimple, unconstrained head movements in participants with chronic WAD are accomplished with reduced velocity and displacement, but with normal muscle activation levels and movement patterns for a given velocity and displacement. We suggest that while reductions in movement velocity and displacement are robust changes and may be of clinical importance in chronic WAD, movement smoothness of unconstrained head movements is not.

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Section: Resultssupporting

confidence: 91%

Muscle activity and head kinematics in unconstrained movements in subjects with chronic neck pain; cervical motor dysfunction or low exertion motor output?

Vikne

Bakke

Liestøl

et al. 2013

BMC Musculoskelet Disord

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“…En cada sesión de medida el sujeto realizó un movimiento continuo de flexo-extensión, describiendo varios ciclos seguidos del movimiento sin detenerse. El protocolo está descrito en Baydal et al(2011).…”

Section: Materials Y Métodos 21 Muestra De Estudio Y Funciones Analiunclassified

Comparación de la normalización lineal de la escala de tiempos con el registro funcional continuo en movimientos cíclicos del cuello

López¹,

Venegas

Serra

et al. 2019

Libro De Actas - 11 Simposio CEA De Bioingeniería

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The time scale normalization is a necessary step in the analysis of human movements. The standard technique is linear normalization that may be ineffective in reducing the variability in the duration of events. An alternative is the registration of functions that involves adjusting the time scale in a nonlinear way, a complex and computationally expensive procedure.In this work, both methods are compared for the cyclic movement of flexionextension of the neck. From a database with 437 complete cycles, we have analyzed the differences in mean curves and functional standard deviations, whose mean values and confidence intervals have been established through a bootstrapping process.The results show small, although significant, differences in the average curves obtained, with a greater amplitude in the angles and velocities. The functional standard deviations are somewhat lower when registration is used. These results suggest that the continuous registration, although it may be useful for the analysis of non-periodic signals, offers no significant advantages over linear normalization in the case of cyclic movements. ResumenLa normalización de la escala de tiempos es un paso necesario en el análisis de movimientos humanos. La técnica estándar es la normalización lineal que puede ser ineficaz para reducir la variabilidad en la duración de los eventos. Una alternativa es el registro continuo que supone ajustar de forma no lineal la escala de tiempo, procedimiento complejo y computacionalmente costoso.

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“…Likewise, there are other physical measures that have been reported to relate to pain scores, like ROM, velocities and jerk of single neck movements, upper limb mobility and strength, and postural sway, while this study focused on the kinematics of cyclic neck movements, which Baydal-Bertomeu et al (2011) reported to have a good discriminative power to differentiate between people with no history of neck pain, WAD patients with chronic pain, and recovered WAD patients trying to reproduce learnt patterns associated to neck pain.…”

Section: Limitationsmentioning

confidence: 99%

“…Then neck motion was analyzed using the procedure described by Baydal-Bertomeu et al (2011): subjects sat on an adjustable chair, with their trunk secured to the backrest. A photogrammetry system (Kinescan-IBV) recorded a 4-marker set mounted on a helmet ( Fig.…”

Section: Measurement Of Neck Pain and Kinematic Parametersmentioning

confidence: 99%

“…They normally involve the analysis of neck motion, which forensic medical examiners and rehabilitation physicians hold as a useful instrument in the assessment of WAD sequelae and recovery control (Vivas Broseta et al, 2017). However, the evidence of their validity and prognostic value is still limited in comparison with PROMs (Nordin et al, 2008 motion analysis for WAD assessment, chiefly in terms of the reliability of the kinematic measures (Hanney et al, 2014;Michiels et al, 2014;Popovich Jr. et al, 2015;Sarig Bahat et al, 2016;Vorro et al, 2013;Williams et al, 2011) and their capacity to discriminate between patients and controls (Baydal-Bertomeu et al, 2011;Sarig Bahat et al, 2015;Stenneberg et al, 2017;Tsang et al, 2014). The most frequently studied kinematic parameter is neck range of motion (ROM), although some of those studies also focus on other motion measures like velocity, smoothness or harmonicity of repeated movements.…”

Section: Introductionmentioning

confidence: 99%

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Relationship between neck motion and self-reported pain in patients with whiplash associated disorders during the acute phase

Rosario

Vivas

Sinovas

et al. 2018

Musculoskeletal Science and Practice

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Background: Biomechanical measures quantify motor control and functional deficits in Whiplash Associated Disorders (WAD), but few studies relate those measures to the clinical scales that are routinely used to assess patients. Most studies are limited to chronic neck pain, and report poor to moderate correlations. Objective: To define a statistical model that relates measures of neck kinematics with clinical scales of neck pain, in WAD patients during the rehabilitation process in the acute phase (less than 3 months since the accident). Methods: 96 WAD patients self-assessed their pain using VAS and NPQ, and passed neck motion tests as part of their rehabilitation program. Four regression models were fitted to analyze the effects of the measured kinematic parameters and subject-specific characteristics on VAS and NPQ. Model errors were compared to minimal clinically significant differences. Results: Multiple correlation coefficients of the models were between 0.74 and 0.90. More than 66% of that correlation was accounted for by subject-specific factors, and most of the other half by the measured kinematic parameters. Range of motion of flexion-extension and axial rotation, and harmonicity of flexion-extension, where the variables most consistently related to the decrease of pain. The error of the models was within the MCSD in more than 50% of the observations. Conclusions: Part of the individual progression of pain and pain-related disability in acute WAD patients, as rated by NPQ and VAS, can be mapped to objective kinematic parameters of neck mobility tests, like ranges of motion, velocities, repeatability and harmonicity of movements.

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Neck motion patterns in whiplash-associated disorders: Quantifying variability and spontaneity of movement

Cited by 47 publications

References 20 publications

Muscle activity and head kinematics in unconstrained movements in subjects with chronic neck pain; cervical motor dysfunction or low exertion motor output?

Muscle activity and head kinematics in unconstrained movements in subjects with chronic neck pain; cervical motor dysfunction or low exertion motor output?

Comparación de la normalización lineal de la escala de tiempos con el registro funcional continuo en movimientos cíclicos del cuello

Relationship between neck motion and self-reported pain in patients with whiplash associated disorders during the acute phase

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