1 / 12

Cerebellar Ataxia

Cerebellar Ataxia. Functional Role of the Cerebellum. It is only 10% of brain’s volum Contains > than half the total # of neurons in the brain. Regulates vestibular, spinal and cortical mechanism through reciprocal neuronal connections. Functional Role of the Cerebellum cont.

wrosemond
Télécharger la présentation

Cerebellar Ataxia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cerebellar Ataxia

  2. Functional Role of the Cerebellum • It is only 10% of brain’s volum • Contains > than half the total # of neurons in the brain. • Regulates vestibular, spinal and cortical mechanism through reciprocal neuronal connections.

  3. Functional Role of the Cerebellum cont. Participate in three systems: • Vestibulo-cerebellar system modulating vestibular influences on posture & eye movement. • Spino-cerebellar system regulating muscle tone, posture & locomotion. • Cerebro-cerebellar system regulating skilled movement.

  4. Leiner et al, 1993 showed a role of the cerebellum in perception, cognition & language. • It compares performance with motor signals from the cerebral cortex. • It contains complete motor & sensory representation of the body.

  5. Role of the Cerebellum • Initiation & control of voluntary movement. • Timing of movement/muscle action. • Moment-to-moment correction of errors. • Compensating for lesions of cerebral cortex. • Motor learning & adaptive adjustments.

  6. Etiology • Developmental abnormality (hydrocephalus or hypoxia at birth) • Traumatic brain injury. • Stroke. • Tumor or other space-occupying lesion. • Infection (encephalitis) • Demyelinating disease (Multiple sclerosis) • Familial or hereditary disease (Friedreich’s ataxia) • Degenerative disease. • Metabolic disease (myxoedema, Wilson’s disease) • Vascular disease (vertebro-basilar artery insufficiency) • Drug & alcohol intoxications.

  7. Clinical assessment, measurement & evaluation • Finger-to-finger & finger-to-nose • Heel-to-shin test • Rebound test • Rapid alternating movement • Romberg test for postural sway

  8. Tests of motor performance • Gait: Timed walking test, cadence & stride length measures. • Balance: FRT, Standing balance, TUG. • Spiral test • Nail test.

  9. Causes of motor impairment • Individual’s voluntary restriction of activity as an adaptation to motor control deficit. • Motor control

  10. Training objective of PT • Train optimal & effective performance of any actions with which the individual is having difficulty with.

  11. Training objective of PT • Train control during performance of functional movements • To increase complexity. • To set up a practice environment wich enables the person to develop more control (accuracy) during practice

  12. Training objective of PT • Train control during performance of functional movements, during: • Standing up • Sitting down • Walking • Reaching to point • Take an object

More Related