Search results
Results From The WOW.Com Content Network
Spastic hypertonia involves uncontrollable muscle spasms, stiffening or straightening out of muscles, shock-like contractions of all or part of a group of muscles, and abnormal muscle tone. It is seen in disorders such as cerebral palsy, stroke, and spinal cord injury. Rigidity is a severe state of hypertonia where muscle resistance occurs ...
Both the extensor and flexor muscles are involved in the maintenance of a constant tone while at rest. In skeletal muscles, this helps maintain a normal posture. Resting muscle tone varies along a bell-shaped curve. Low tone is perceived as "lax, flabby, floppy, mushy, dead weight" and high tone is perceived as "tight, light, strong".
Unlike spastic or ataxic cerebral palsies, ADCP is characterized by both hypertonia and hypotonia, due to the affected individual's inability to control muscle tone. [2] Clinical diagnosis of ADCP typically occurs within 18 months of birth and is primarily based upon motor function and neuroimaging techniques.
People with the spastic type of CP typically have muscles that are "tight" or stiff due to high muscle tone. [2] Symptoms of spastic cerebral palsy vary as the disability can affect individuals differently. [2] However, they typically appear in infancy and early childhood and most children are diagnosed in the first two years of life. [7]
Muscle tone is sometimes used to make the diagnosis for spastic quadriplegia as affected children often appear to be either too stiff or too floppy. [2] Another important diagnostic factor is the persistence of primitive reflexes past the age at which they should have disappeared (6–12 months of age). [2]
Spastic diplegia is a form of cerebral palsy (CP) that primarily affects the legs, with possible considerable asymmetry between the two sides. It is a chronic neuromuscular condition of hypertonia and spasticity in the muscles of the lower extremities of the human body, manifested as an especially high and constant "tightness" or "stiffness", [1] [2] usually in the legs, hips and pelvis.
Spasticity can be differentiated from rigidity with the help of simple clinical examination, as rigidity is a uniform increase in the tone of agonist and antagonist muscles which is not related to the velocity at which the movement is performed passively and remains the same throughout the range of movement while spasticity is a velocity ...
Muscle paresis or paralysis; Fibrillations; Fasciculations – caused by increased receptor concentration on muscles to compensate for lack of innervation. Hypotonia or atonia – Tone is not velocity dependent. Hyporeflexia - Along with deep reflexes even cutaneous reflexes are also decreased or absent.