Vertical Posture and Head Stability in Patients With Chronic Neck Pain

Michaelson, Peter; Michaelson, Magdalena; Jarić, Slobodan; Latash, Mark L.; Sjölander, Per; Djupsjöbacka, Mats

doi:10.1080/16501970306093

Cited by 119 publications

(79 citation statements)

References 23 publications

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“…Postural control appears to be impaired in both WAD patients and chronic neck pain patients, as indicated by the larger postural trunk sway before the balance is reached, both in stance tasks and more complex gait tasks (Sjöstrom et al 2003;Michaelson et al 2003;Madeleine et al 2004). Head stability also appears to be reduced, as observed by Michaelson et al (2003) who speciWcally monitored head and trunk postural adjustments in response to unexpected or self-administered perturbation, the postural deWcits being more pronounced in WAD as compared to work-related chronic pain patients.…”

Section: Postural Controlmentioning

confidence: 88%

“…Head stability also appears to be reduced, as observed by Michaelson et al (2003) who speciWcally monitored head and trunk postural adjustments in response to unexpected or self-administered perturbation, the postural deWcits being more pronounced in WAD as compared to work-related chronic pain patients.…”

Section: Postural Controlmentioning

confidence: 88%

“…Cervical proprioception, generally assessed through tasks requiring postural corrections and head repositioning, was found to be consistently reduced, as compared to control subjects (Revel et al 1991;Michaelson et al 2003;Kristjansson et al 2003;Treleaven et al 2003Treleaven et al , 2005.…”

Section: A Glance To Proprioceptionmentioning

confidence: 96%

“…A possible mechanism underlying the disturbance of proprioception in WAD, as well as in chronic neck pain patients, has been suggested by Michaelson et al (2003) on the basis of results from animal experiments. Namely activation of chemo-and nociceptive sensory aVerents from muscles and joints, elicited by injecting inXammatory substances in limb (Johansson et al 1993;Djupsjöbacka et al 1994Djupsjöbacka et al , 1995a and neck muscles (Pedersen et al 1997;Thunberg et al 2001;Hellström et al 2002), strongly aVects proprioceptive activity of muscle spindle aVerents via involvement of gammamotoneurons (Jovanovic et al 1990).…”

Section: A Glance To Proprioceptionmentioning

confidence: 97%

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Influence of sympathetic nervous system on sensorimotor function: whiplash associated disorders (WAD) as a model

2006

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There is increasing interest about the possible involvement of the sympathetic nervous system (SNS) in initiation and maintenance of chronic muscle pain syndromes of different aetiology. Epidemiological data show that stresses of different nature, e.g. work-related, psychosocial, etc., typically characterised by SNS activation, may be a co-factor in the development of the pain syndrome and/or negatively affect its time course. In spite of their clear traumatic origin, whiplash associated disorders (WAD) appear to share many common features with other chronic pain syndromes affecting the musculo-skeletal system. These features do not only include symptoms, like type of pain or sensory and motor dysfunctions, but possibly also some of the pathophysiological mechanisms that may concur to establish the chronic pain syndrome. This review focuses on WAD, particular emphasis being devoted to sensorimotor symptoms, and on the actions exerted by the sympathetic system at muscle level. Besides its well-known action on muscle blood flow, the SNS is able to affect the contractility of muscle fibres, to modulate the proprioceptive information arising from the muscle spindle receptors and, under certain conditions, to modulate nociceptive information. Furthermore, the activity of the SNS itself is in turn affected by muscle conditions, such as its current state of activity, fatigue and pain signals originating in the muscle. The possible involvement of the SNS in the development of WAD is discussed in light of the several positive feedback loops in which it is implicated.

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Section: Postural Controlmentioning

confidence: 88%

Section: Postural Controlmentioning

confidence: 88%

Section: A Glance To Proprioceptionmentioning

confidence: 96%

Section: A Glance To Proprioceptionmentioning

confidence: 97%

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Influence of sympathetic nervous system on sensorimotor function: whiplash associated disorders (WAD) as a model

2006

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“…En otros trabajos se determinó que la velocidad máxima de ejecución de ciertos movimientos de columna cervical era inferior en pacientes con dolor crónico cervical en comparación con personas asintomáticas [100] y [139]. Este resultado es congruente con los resultados reportados porÖhberg [65], donde las velocidades angulares máximas de todos los movimientos analizados (flexión, extensión, rotación izquierda y rotación derecha) se veían reducidos en pacientes que habían que sufrían dolor crónico por SLC.…”

Section: Métodos Basados En El Estudio Del Patrón De Movimientosunclassified

Cinemática del raquis cervical. Definición de patrones de movimiento para la valoración funcional en el síndrome del latigazo cervical

Bertomeu¹,

Ma²

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The Human Shoulder Suspension Apparatus: A Causal Explanation for Bilateral Asymmetry and a Fresh Look at the Evolution of Human Bipedality

Osborn

Homberger

2015

The Anatomical Record

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The combination of large mastoid processes and clavicles is unique to humans, but the biomechanical and evolutionary significance of their special configuration is poorly understood. As part of the newly conceptualized shoulder suspension apparatus, the mastoid processes and clavicles are shaped by forces exerted by the musculo-fascial components of the cleidomastoid and clavotrapezius muscles as they suspend the shoulders from the head. Because both skeletal elements develop during infancy in tandem with the attainment of an upright posture, increased manual dexterity, and the capacity for walking, we hypothesized that the same forces would have shaped them as the shoulder suspension apparatus evolved in ancestral humans in tandem with an upright posture, increased manual dexterity, and bipedality with swinging arms. Because the shoulder suspension apparatus is subjected to asymmetrical forces from handedness, we predicted that its skeletal features would grow asymmetrically. We used this prediction to test our hypothesis in a natural experiment to correlate the size of the skeletal features with the forces exerted on them. We (1) measured biomechanically relevant bony features within the shoulder suspension apparatus in 101 male human specimens (62 of known handedness); and (2) modeled and analyzed the forces within the shoulder suspension apparatus from X-ray CT data. We identified eight right-handed characters and demonstrated the causal relationship between these right-handed characters and the magnitude and direction of forces acting on them. Our data suggest that the presence of the shoulder suspension apparatus in humans was a necessary precondition for human bipedality. Anat Rec, 298:1572Rec, 298: -1588Rec, 298: , 2015. V C 2015 Wiley Periodicals, Inc.

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Vertical Posture and Head Stability in Patients With Chronic Neck Pain

Cited by 119 publications

References 23 publications

Influence of sympathetic nervous system on sensorimotor function: whiplash associated disorders (WAD) as a model

Influence of sympathetic nervous system on sensorimotor function: whiplash associated disorders (WAD) as a model

Cinemática del raquis cervical. Definición de patrones de movimiento para la valoración funcional en el síndrome del latigazo cervical

The Human Shoulder Suspension Apparatus: A Causal Explanation for Bilateral Asymmetry and a Fresh Look at the Evolution of Human Bipedality

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