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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 ...
Hypertonia is a term sometimes used synonymously with spasticity and rigidity in the literature surrounding damage to the central nervous system, namely upper motor neuron lesions. [1] Impaired ability of damaged motor neurons to regulate descending pathways gives rise to disordered spinal reflexes , increased excitability of muscle spindles ...
Spasticity can be in the form of the clasp-knife response, in which there is increased resistance only at the beginning or at the end of the movement. Rigidity can be of the leadpipe type, in which there is resistance throughout to passive movement, or it may be of cogwheel type, in which the resistance to passive movement is in a jerky manner.
Leadpipe rigidity is sustained resistance to passive movement throughout the whole range of motion, with no fluctuations. Cogwheel rigidity is jerky resistance to passive movement as muscles tense and relax. Spasticity, a special form of rigidity, is present only at the start of passive movement. It is rate-dependent and only elicited upon a ...
Spasticity also is velocity-dependent, [14] but, differently from oppositional paratonia, if repeatedly elicited decreases instead of increasing. [15] Conversely, parkinsonian rigidity is independent from movement velocity and probably also from movement repetition.
“There’s a big difference between an assist and being able to ramp up to 20 or 30 miles an hour by pushing a button,” Press adds. These factors make it easier to crash or fall — plus, many ...
The main difference between spastic diplegia and a normal gait pattern is its signature "scissor gait" - a style that some non-disabled people might tend to confuse with the effects of drunkenness, multiple sclerosis, or another nerve disease. The degree of spasticity in spastic diplegia (and, for that matter, other types of spastic CP) varies ...
"I [thought to myself], ‘Oh, no, this is not going to happen today,’ ” Linda Rosa recalled of the incident
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