Aging 2 Flashcards
(21 cards)
- Neurological System
- Physiological Changes
- weight of the brain
- Physiological Changes
Decreases from age 20-90 by 10-20% with greater loss in basal ganglia and cerebellum
- Neurological System
- Physiological Changes
- Peripheral/Central Neurons
–Decreased dendrites, decreased blood flow, decreased NCV, decreased reflexes
- Cardiopulmonary System
- Physiological Changes
- Arteries
- Physiological Changes
–Calcification and thickening.
–Increases in BP
Max HR decreases with age may be due to
SA node cells and decrease in neurotransmitters
SV decreases due to
multiple effects of the changes in the ventricles
Increased Lung compliance that leads to
increased residual volume
Reduced Chest wall expansion due to
postural changes
What decreases with age in the cardiopulmonary system?
Max HR
SV
CO
VO2
Genitourinary males and females
- female **menopause
- males - decrease in circulating testosterone and decreased fertility levels
kidney
decreased nephrons (decreased filtration)
Integumentary
–skin is thinner and more fragile, susceptible to decubiti
Nutrition, Body Composition
- Total body protein
- Body water
- Fat
- Lean body mass
- Bone density
- Height
- Weight
- Metabolism
- Diet-high protein; carbs; vitamin supplement; CA+
- Popular theories:
- Developmental theory
–Aging starts at the moment of conception
–Piaget (cognitive Development) –Maslow (growth motivation)
Disengagement theory by Cumming and Henry
–Resources decline and interest declines to prepare for death
Activity theory
–Wisdom of years should be revered and utilized. Most geriatricians believe this!
Sociological Aging
- Changing roles
- Physical loss
- Loss of life partners, family, friends
- Financial difficulties
- Loneliness & isolation
- Changes in health & appearance
Geriatric Population
Do not focus on
eccentric contractions
Geriatric Population
Since self-selected walking pace accounts for approx. 30-50% of maximal aerobic capacity, a low endurance capacity may not be the
primary factor limiting mobility in the frail elderly
Neural Function
Aging leads to a decline in
spinal cord axon number and a 10% decline in nerve conduction velocity
A physically active lifestyle and specific exercise training positively affects neuromuscular functions at
any age to slow age-related decline in cognitive performance
Neural Function
Changes likely contribute to age-related decrement in
neuromuscular performance
