Balance

• Ability to exucte smotth accurate controlled movements
• The cerembellus is belived to function principally in the egulation f coordination and movements initiated by the cerebral cortex.

• Responsible for regulation of movement postural control and muscle tone
• Fuctions as an error correcting mechanism

• Dysmetria
• Dysdiadochokinesia
• Tremor
• Movement decomposition/ syssynergia
• Rebound phenomenon

Inability to judge the distance or range of movement

Inabilty to do rapid alternating movements

Involuntary oscillatroy movement

During Movement

at rest, Trunk or extremities

Performed as component parts, not smooth and coorinated

When a limb is held isometrically agains resistance and resistance is romoved limb flies upward.

• Initiation and regulation of gorss intentional movements
• Planning and execution of complex movements
• selevtive movement and the ability to accomplish automatic movement and postural control
• Selective movement and the ability to accomplish automatic movement and postural control
• Also important in maintaining normal muscle tone
• Diagnosies: Parkinson's disease. CP

• Bradykinesia
• Rigidity
• Tremor
• Akinesia
• Chorea
• Athetosis
• Hemiballismus
• Dystonia

Slow or decreased movement

• Increases muscle tone causing greater reistance to passive movement (on both sides of joint)
• Leadpipe: uniform constant resistance felt by the examiner as the extremity is moved through a range of motion
• Cogwheel: characterized by a series of brief relaxations or catches as extremtiy is moved passively

UE, Pillrolling

Decreased ability to initiate movement

involuntary rapid irregular and jerky movements

slow involunatary writhing twisting and wormlike movements

Sudden jerky forcefull movement of UF and LE on one side of the body

• Inveolutary contraction of proximal muscles
• Twisting, bizarre movements

• Responsible for mediating proprioceptive input from muscles and joint receptors
• Position sense
• Kinesthesia

• Cutaneous sensations, muscle and joint propriceports
• input from body in contact with support surface.

• 1 somatosensory
• 2 visual
• 3 vestibular