Understanding Balance Terms

Center of Gravity Sway Velocity: The total distance traveled by the Center of Gravity divided by the time of the movement. A measurement of how fast someone sways.

Cerebellum: Portion of the hindbrain that modulates balance, limb and eye movements

Computerized Dynamic Posturography (CDP): A moveable platform paired with a dynamically changing visual environment to perturb a patient’s balance sensory system. The purpose of such a system is to quantify a subject’s postural sway in different environments, providing additional information to the clinician to be used to assist in determining which system is deficient.

Dynamic_LDisequilibrium: Subjective sense of unsteadiness

Dizziness: Non-specific term encompassing feelings of imbalance, spinning and lightheadedness

Imbalance: Observable unsteadiness

Modified Clinical Test of Sensory Interaction on Balance (mCTSIB): An objective analysis of a patient’s functional balance control which is used to quantify postural sway velocity. Patients are tested standing on the balance plate with eyes open firm, eyes closed firm, eyes open foam, eyes closed foam.

Peripheral vestibular system: Parts of the inner ear concerned with balance and body orientation; consisting of the semicircular canals, utricle, and saccule. Peripheral in this context means of the central nervous system, to which the peripheral system sends information.

Somatosensory System: The sensory system responsible for gathering information about the body’s surrounding environment which includes touch, temperature, proprioception (body orientation), and pain.

Vertigo: Dizziness characterized by a sense of spinning

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