Results 231 to 240 of about 147,070 (264)
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1980
Normal posture depends upon the integrated activity of many different regions of the brain. Certain postures are assumed in repose; others are exhibited before any coordinated movement is carried out. The essential elements for most postural activities are present in the spinal cord.
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Normal posture depends upon the integrated activity of many different regions of the brain. Certain postures are assumed in repose; others are exhibited before any coordinated movement is carried out. The essential elements for most postural activities are present in the spinal cord.
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Degradation of postural control with aging
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2015Aging negatively impacts the ability to maintain postural stability due to degraded control systems. The entropic half-life, a non-linear variable that quantifies the transition of sample entropy with increasing time scales, quantifies the time that elapses before old positional information no longer influences, or is no longer related to, the control
Jennifer, Baltich +2 more
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Vestibular humanoid postural control
Journal of Physiology-Paris, 2009Many of our motor activities require stabilization against external disturbances. This especially applies to biped stance since it is inherently unstable. Disturbance compensation is mainly reactive, depending on sensory inputs and real-time sensor fusion. In humans, the vestibular system plays a major role.
Mergner, Thomas +2 more
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Postural control of the human mandible
Archives of Oral Biology, 2007This article reviews recent experimental evidence explaining the mechanisms that support the mandible in its rest or postural position when the head is stationary and during locomotion. At rest, and during slow jaw movements, there is alternating activation of the jaw-opening and jaw-closing muscles which arises from a central pattern generator ...
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Vestibular postural control model
Kybernetik, 1972Current models for physiological components and a posture control experiment conducted with three normal subjects form the basis for a model which seeks to describe quantitatively the control of body sway when only vestibular motion cues are used. Emphasis is placed on delineating the relative functional roles of the linear and the angular acceleration
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Posture and movement: coordination and control.
Archives italiennes de biologie, 1997Studies are reviewed that address the problem of the variables controlled in the maintenance of body posture and generation of limb movement. Vestibulospinal and neck reflexes cancel each other in response to roll, but not in response to pitch of the animal. In pitch trunk orientation is not effectively stabilized in space.
LACQUANITI, FRANCESCO +3 more
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Cervical cancer prevention and control in women living with human immunodeficiency virus
Ca-A Cancer Journal for Clinicians, 2021Philip E Castle, Vikrant V Sahasrabuddhe
exaly