Ch 12: Motor dysfunction terms Flashcards
Intention tremor
worsening of action tremor as limb approaches a target
Dysmetria
undershooting (hypometria) or overshooting (hypermetria) of a target
Dyssynergia
breakdown in movement resulting in joints being moved separately to reach desired target as opposed to moving in a smooth trajectory
Dysdiadochokinesia
impaired ability to perform rapid alternating movements
Ataxia
loss of motor control including tremors, dysdiadochokinesia, dyssynergia, and visual nystagmus
cogwheel & lead pipe rigidity
cogwheel- alternative contraction/relaxation of muscles being stretched
lead pipe- consistent contraction throughout range. p 471 in pedretti
Bradykinesia
overall slowing of movement patterns
Akinesia
inability to initiate movements
Athetosis
dyskinetic condition that includes inadequate timing, force, and accuracy of movements. Writhing and worm-like
Dystonia
involuntary sustained distorted movement or posture involving contraction of groups of muscles
Chorea
involuntary movements of face & extremities which are spasmodic and of short duration
Hemiballismus
unilateral chorea characterized by violent, forceful movements of proximal muscles
dysarthria
motor speech impairments
dysphagia
swallowing impairments
Serial tasks
comprised of a series of movement linked together to make a whole (dressing)
Closed vs Open Tasks
closed : predictable and stable environment (oral care), open: constantly changing environment (driving)
Massed practice
Rest time is much less than practice time (e.g. CIMT)
Blocked practice
Repetitive practice of the same task uninterrupted by practice of other tasks
Stage of Motor Learning: Skill Acquisition
Cognitive stage: occurs during initial instruction and practice of skill. Demonstrate ideal performance.
Stage of Motor Learning: Skill Retention
Associated stage: involves carryover as individuals are asked to demonstrate their newly acquired skill after initial practice.
Stage of Motor Learning: Skill Transfer
Autonomous stage: Individual demonstrating skill in a new context
Knowledge of results (KR)
Feedback given after task performance about the outcome (e.g. “your shirt is on backwards”)
Knowledge of performance (KP)
Feedback given after task about nature of performance (e.g. next time, dress your right arm first)
Neurodevelopmental Treatment (NDT)
Normalization of posture and tone is necessary for normal mvmt. Treatment directly emphasizes development of skilled movements for task performance (all other sensorimotor approaches do not emphasize this). Handling is primary intervention.
Propriocpetive Neuromuscular Facilitation (PNF)
Neuromuscular mechanisms can be hastened through stimulation of proprioceptors. Balanced interplay between agonist and antagonist. Diagonal movements, crossing midline in functional activities.
Brunnstrom’s Movement Therapy
Facilitating recover through a specific sequence, reflexive to volitional. Applies to tx of hemiplegia and uses motor patterns available to the pt; goal is to progress through stages of recovery toward more normal and complex mvmt patterns
- Pt should be aided to gain control of limb and that selected sensory stimuli can help initiate and gain control of mvmt. -Examples: Bed positioning
- Bed mobility
- Balance and trunk control
- “pain free” shoulder ROM (pendulum or codman’s exercises)
Rood’s Approach
Sensorimotor control is developmentally based. 4 sequential phases of motor control: reciprocal inhibition, co-contraction, heavy work, and skill. “otogenic motor patterns” normalization of tone and muscular responses are achieved via sensory stimulation to elicit desired movement patterns.
Examples: inhibition/facilitory techniques such as icing, stroking, tapping, etc.
Modified Ashworth Scale
measures spasticity by quickly stretching the limb in opposite direction of muscle pull. 0: no increase in muscle tone, 4: the affected part is rigid in flexion or extension.
Associated Reactions
stimulus: resisted voluntary movement of less involved limb, response: involuntary movement of the contralateral resting limb
Serial Splint
Used to achieve a slow, progressive increase in motion by progressive remolding.
Overhead suspension sling
Arm support that is supported by a sling and suspended by an overhead rod. Use for people with proximal weakness (ALS, guillan barre, MD)
Balance forearm orthoses
i.e. mobile arm supports or ball-bearing forearm orthosis. Allows pt’s with weak proximal musculature to utilize available control of trunk and shoulder to engage in functional tasks.
Discrete Tasks
Tasks with recognizable beginning and end. e.g. kicking a ball