| Term 
 
        | Categories and ages of elderly |  | Definition 
 
        | young elderly: 65 to 74 years 
 old elderly: 75 to 84 years
 
 old, old elderly or old and frail elderly: >85 years
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        | Term 
 
        | Genetic Theory of Aging (definition) |  | Definition 
 
        | aging is intrinsic to the organism; genes are programmed to modulate aging changes, overall rate of progression |  | 
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        | Term 
 
        | Hayflick Limit Theory (doubling/biological clock) Theory (definition) |  | Definition 
 
        | functional deterioration within cells is due to limited number of genetically programmed cell replications |  | 
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        | Term 
 
        | Free radical theory of aging (definition) |  | Definition 
 
        | free radicals are highly reactive and toxic forms of oxygen produced by cell mitochondria.  The realeased radicals wreak havoc on an aging body. |  | 
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        | Term 
 
        | Intrinsic Mutagenesis (cell mutation) theory of aging (definition) |  | Definition 
 
        | errors int he synthesis of proteins (DNA, RNA) leads to exponential cascade of abnormal proteins and aging changes |  | 
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        | Term 
 
        | Hormonal theory of aging (definition) |  | Definition 
 
        | functional decrements in neurons and their associated hormones lead to aging changes |  | 
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        | Term 
 
        | Immunity theory of aging (definition) |  | Definition 
 
        | thymus size decreases, shrivels by puberty, becomes less functional; bone marrow cell efficiency decreases; results in steady decrease in immune responses during adulthood |  | 
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        | Term 
 
        | Activity theory of aging (definition) |  | Definition 
 
        | older persons who are socially active exhibit improved adjustment to the aging process; allows continued role enactment essential for positive self-image and improved life satisfaction |  | 
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        | Term 
 
        | Disengagement theory of aging (definition) |  | Definition 
 
        | distancing of an individual or withdrawal from society; reduction in social roles leads to further isolation and life dissatisfaction |  | 
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        | Term 
 
        | Dependency theory of aging (definition) |  | Definition 
 
        | increasing reliance on others for meeting physical and emotional needs; focus is increasingly on self |  | 
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        | Term 
 
        | Strategies to slow or reverse skeletal changes in aging adults |  | Definition 
 
        | postural exercises (good posture) weight bearing (gravity-loading) exercise
 nutritional, hormonal and medical therapies
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        | Term 
 
        | Strategies to slow or reverse muscular changes in aging adults |  | Definition 
 
        | improve health (correct medical problems, improve nutrition, address substance/alcohol abuse) increase levels of physical activity
 provide strength training
 provide flexibility and ROM exercises
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        | Term 
 
        | Strategies to slow or reverse neurological changes in aging adults |  | Definition 
 
        | correct medical problems (improve cerebral blood flow) improve health
 increase levels of physical activity
 provide effective strategies to improve motor learning and control
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        | Term 
 
        | Meniere's disease (definition) |  | Definition 
 
        | episodic attacks characterized by tinnitus, dizziness, and a sensation of fullness or pressure in the ears; may also experience sensorineural hearing loss |  | 
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        | Term 
 
        | Benign paroxymal positional vertigo (BPPV) (definition) |  | Definition 
 
        | brief periods of vertigo (less than 1 minute) associated with position change; the result of degeneration of the utricular otoconia that settle on the capula of the posterior semicircular canal |  | 
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        | Term 
 
        | Strategies to slow or reverse cognitive changes in aging adults |  | Definition 
 
        | improve health increase physical activity
 increase mental activity
 provide multiple sensory cues to compensate for sensory loss
 provide stimulating, "enriching" environment
 reduce stress
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        | Term 
 
        | Strategies to slow or reverse cardiopulmonary changes in aging adults |  | Definition 
 
        | complete a cardiopulmonary assessment prior to commencing exercise program individual exercise prescription
 aerobic training programs
 improve overall daily activity levels
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