Lecture 4: Physiological Aspects of Aging Flashcards
True or False: The rate and extent of decline is inevitable and uncontrollable
FALSE: the rate and extent are partially controllable
Decrease peak oxygen transport of ________ per decade 25-65
Decrease peak oxygen transport of 5ml/kg/min per decade 25-65
Increase in body fat with a decrease in glucose tolerance will increase your risk for?
Diabetes
25% decrease in muscles force from age ___-____
25% decrease in muscles force from age 40-65
25% decrease in lean tissue from age ___-____
25% decrease in lean tissue from age 40-65
A decrease in balance, slowing of reaction speed and movement time are what types of changes associated with aging, impaired memory
functional
Deterioration of function in which 4 special senses
hearing
vision
smell
taste
out of 1000 people how many over 75 year olds had a non fatal fall injury
120 - highest group
what percentage of flexibility is lost per decade of adult life
7%
Decreases in bone calcium and deterioration of bone matrix begins at what age and accelerated for how many years in postmenopausal women?
25
5 (loss of 10-15%)
True of False
Regular PA can delay the normal aging process by 10-20 years
What average % decline in VO2 max occurs per decade from age 25-65?
10%
What is the effect of PA on increasing age and aerobic power
Trained OA can maintain a Vo2 max in the range of younger adults up to an old age
Which 3 factors are responsible for a decrease in aerobic capacity
Reduced max cardiac output
Reduced max HR
Reduced stroke volume
Max cardiac output decreases by __%/yr between 25-____?
Max cardiac output decreases by 10% / yr between 25-65?
How many beats per decade does max HR decrease by
5-10
What happens if intensity overtaxes these lower aerobic capacities
Places strain on the heart and can lead to serious S&S like dizziness, cramps and chest pain
What is the minimal vo2 for independent living at 85 for women and men
Women: 15
Men: 18
Why are proper warm up and cool down routines extremely important in the active older adult
to decrease the risk of abnormal cardiac responses to sudden changes in cardiovascular function
Aging heart rate = more prone to v______ f________
ventricular fibrillation
Due to insufficient cardiac blood supply, OA with heart disease may experience _____ pain and shortness of breath at beginning of exercise onset
Due to insufficient cardiac blood supply, OA with heart disease may experience chest pain and shortness of breath at beginning of exercise onset
Early fatigue for exercise intensity of 70-___% in ________ older adults
Early fatigue for exercise intensity of 70-75 % in untrained older adults
Doest resting HR increase decrease or remain unchanged in OA
Remains unchanged
Aging leads to a decrease of _______ regulation of the heart regardless of level of PA
autonomic
A decrease in the ability of the heart leads to increase/decrease in contractions during sub and max exercise
increase
Reductions in parasympathetic activity can lead to ….
HR and BP variability, potentially dangerous rapid HR and sudden cardiac death
up to how many beats per min can beta blockers lower the HR by
30 BPM
What are 2 methods of monitoring exerction
RPE + talk test + sing a song