Pathophysiology of Spasticity: Implications for Neurorehabilitation
网页2014年10月30日 · Spasticity is the velocity-dependent increase in muscle tone due to the exaggeration of stretch reflex. It is only one of the several components of the upper motor neuron syndrome (UMNS). The central lesion causing the UMNS disrupts the balance of supraspinal inhibitory and excitatory inputs directed to the spinal cord, leading to a state of ...
Spasticity - Physiopedia
网页'Spasticity is a motor disorder characterised by a velocity-dependent increase in tonic stretch reflexes (muscle tone) with exaggerated tendon jerks, resulting from hyperexcitability of the stretch reflex, as one component of the upper motor neurone syndrome'
Spasticity - StatPearls - NCBI Bookshelf
网页2023年8月8日 · Spasticity is a motor disorder marked by a velocity-dependent increase in muscle tone or tonic stretch reflexes associated with hypertonia. Colloquially, it is often referred to as “tightness” or “stiffness.”
Spasticity Mechanisms – for the Clinician - PMC - National …
网页2010年12月17日 · Physiologically spasticity is defined as a motor disorder characterized by a velocity dependent increase in the tonic stretch reflexes (muscle tone) with exaggerated tendon jerks, resulting from hyperexcitability of the stretch reflexes as one component of the upper motor neuron (UMN) syndrome (Lance, 1980). The …
Spasticity: pathophysiology, evaluation and management
网页Spasticity is defined as ‘disordered sensorimotor control resulting from an upper motor neurone (UMN) lesion, presenting as intermittent or sustained involuntary activation of muscles’. 1 It is a frequent symptom of common neurological disorders, such as multiple sclerosis and stroke.
Spasticity: Practice Essentials, Background, Pathophysiology - Medscape
网页6 天之前 · Spasticity is increased, involuntary, velocity-dependent muscle tone that causes resistance to movement. The condition is typically a result of insult to the central nervous...
The pathophysiology of spasticity - PubMed
网页Spasticity is only one of several components of the upper motor neurone (UMN) syndrome, known collectively as the 'positive' phenomena, that are characterized by muscle overactivity. Other components include tendon hyper-reflexia, clonus, the clasp-knife phenomenon, flexor and extensor spasms, a Bab …
PATHOPHYSIOLOGY OF SPASTICITY AND SPASMS - Journal of …
网页Physical and pharmacological treatments can reduce pain and discomfort without compromising function. Spasticity is a common symptom seen in many neurological conditions, notably head injury, spinal cord injury, stroke, cerebral palsy, and …
Neurophysiological bases of spasticity | SpringerLink
网页Lance (1980) proposed an operational and relatively straightforward definition: “ Spasticity is a motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes (muscle tone) with exaggerated tendon jerks, resulting from hyperexcitability of the stretch reflex, as one component of the upper motor neuron syndrome.”
The spinal pathophysiology of spasticity – from a basic science …
网页2007年1月23日 · Spasticity is a term, which was introduced to describe the velocity-sensitive increased resistance of a limb to manipulation in subjects with lesions of descending motor pathways. This distinguishes spasticity from the changes in passive muscle properties, which are often seen in these patients, but are not velocity-sensitive.