quiz 11

Question 1

peak motor performance

Answer 1

-at 20-30 years (biological maturity)
- muscular strength, cardiorespiratory
efficiency, processing speed, flexibility,
balance

Question 2

theories of advanced aging

Answer 2

• Processing speed, as determined by
  reaction time, improves with age
• Peak performance is in the twenties
• Genetic (cellular clock)
• Wear and tear
• Cellular garbage/mutation (free
  radicals)
• Immune system

Question 3

longevity

Answer 3

• regular physical activity (30 min. brisk walk 3-5 days a week) and moderate physical fitness = increased longevity

Question 4

chronological age

Answer 4

length of life in years

Question 5

physiological age

Answer 5

length of life based on developmental body age & any regression that happened

Question 6

regression

Answer 6

• Regardless of training, regression is
  inevitable
  – After age 30, approximate rate of .75% to 1% a year
  – Decrements in muscular strength, balance, flexibility, cardiorespiratory and neural function
  – Bone loss, muscle loss and fat increase
  – Up to 50% due to inactivity and other
  poor health habits

Question 7

muscular strength regression

Answer 7

25-30% decline between ages 30 & 70

Question 8

neural function regression

Answer 8

-25% to 75% decrease in arm and hand
movements
-slower reaction time
-psychomotor slowing

Question 9

balance regression

Answer 9

-balance & stability get worse
-increased postural sway
-decreased visual perception

Question 10

what are the three factors with greatest influence on flexibility in adulthood

Answer 10

1. physical activity level
2. inherent effects of aging
3. degenerative joint disease

Question 11

bone mass changes in males & females

Answer 11

males: 10-15%
females: 30%

Question 12

in general, how are movements regressed?

Answer 12

they are slower with less flexion & extension

Question 13

what percent of adults engage in sufficient physical activity intense enough to lead health benefits?

Answer 13

only 20%

Question 14

when does regression start?

Answer 14

30+

Question 15

female peak

Answer 15

22-25

Question 16

male peak

Answer 16

28-30

Question 17

peak processing speed

Answer 17

in 20s

Question 18

longevity

Answer 18

length of life

Question 19

regression (d)

Answer 19

return to dimished state of phsyiological development

Question 20

things that regress

Answer 20

1. balance
2. neural slowing (psychomotor slowing)
3. muscular strength
4. flexibility

Question 21

how to prevent regression

Answer 21

be physically active, nutrition,

-less physically active = less flexible

-less physical activity makes you look older

Question 22

aging (d)

Answer 22

diminished capacity to regulate the internal environment

Question 23

gerontology

Answer 23

study of older people & the aging process