Chpt. 14-16 Questions Flashcards
(112 cards)
Sarcopenia leads to a decrease in A. Protein reserves B. Muscle strength C. Functional quality D. All of the above
D. All of the above
Sarcopenia progresses at rate of _____% per year after age _____.
a. 3-5; 50
b. 3-5; 60
c. 1-3; 50
d. 1-3; 60
c. 1-3; 50
In the aging adult, muscle mass is lost due to typical age related changes and disuse. Which of the following statements is true about decreased muscle mass in the geriatric patient?
- During his training regimen Bob has more endurance than power because his type I fibers naturally have a better chance of recovery than type II fibers.
- As muscle mass is lost with age it is replaced by fat mass.
- The upper extremities lose more strength because they are non weight bearing.
- Strength declines with age because type II fast twitch fibers become type I slow twitch fibers.
- As muscle mass is lost with age it is replaced by fat mass.
Power can be measured as the amount of work performed per a unit of time. Which of the following contribute to a decrease in power in the older adult? Select all that apply.
- Decreased compliance of a muscle’s tendinous attachment.
- Reduced rate of cross-bridge cycling.
- Alteration on excitation and contraction coupling.
- Increased compliance of a muscle’s tendinous attachment.
- Reduced rate of cross-bridge cycling.
- Alteration on excitation and contraction coupling.
- Increased compliance of a muscle’s tendinous attachment.
Which of the following is true regarding age-related changes in muscle fibers.
A. Apoptosis does not play a key role in skeletal muscle cell loss
B. Type I (slow twitch) atrophy more than type II (fast twitch)
C. Increase number of fiber type grouping
D. Satellite cells are decreased equally in type I and type II muscle fibers
C. Increase number of fiber type grouping
All of the following are muscle fiber changes associated with aging except:
a. fiber necrosis
b. fiber type grouping
c. Type I (slow twitch) atrophy more than type II (fast twitch)
d. Reduction in type II muscle fiber satellite cell content
c. Type I (slow twitch) atrophy more than type II (fast twitch)
A 50% decline in available \_\_\_\_\_\_\_\_\_\_\_\_\_ and a diminished number and availability of satellite cells lead to a decline in muscle size and strength. A. Motor neurons B. Mitochondria C. Protein Synthesis D. Cross-bridge cycling
A. Motor neurons
After \_\_\_\_\_ years old, RMR starts to decline at a rate of \_\_\_\_\_\_\_ per decade. A. 30; 1-2% B. 20; 3-4% C. 30; 3-4% D. 20; 1-2%
D. 20; 1-2%
All of the following are age associated changes in endocrine function linked to sarcopenia except:
A. Increased insulin resistance
B. Decreased growth hormone
C. Vitamin D Deficiency
D. Overproduction of estrogen and testosterone
D. Overproduction of estrogen and testosterone
In regards to sarcopenia, why is insulin important?
A. It provides an anabolic effect, increasing muscle growth
B. It aids in deactivation of satellite cells in the muscle fiber
C. It assists with blood pressure control
D. None of the above
A. It provides an anabolic effect, increasing muscle growth
Which of the following is true regarding growth hormone as it relates to sarcopenia?
a. There is definite, long term, positive effects in improving muscle mass with growth hormone administration.
b. Growth hormones have no side effects.
c. Growth hormones should be avoided with the older population.
d. Growth hormones should be used frequently to combat sarcopenia.
c. Growth hormones should be avoided with the older population.
Insulin-like growth hormone plays a critical role in _____________ in aging skeletal muscle, and without this can lead to increased risk of sarcopenia.
a. Hypotrophic response
b. Hypertrophic response
c. Isotrophic response
d. None of the above
b. Hypertrophic response
Studies suggest that all of the following are true about testosterone therapy except?
- Promote moderate increases in muscle mass
- Hypothesis promote lean muscle and function In older adults
- Testosterone therapy has been shown to increase muscle strength in older adults
- Testosterone therapy has been shown to increase muscle strength in older adults
Vitamin D helps to preserve type ____ muscle fibers which are prone to atrophy in the elderly
A. Type I
B. Type II
B. Type II
Considering the main purpose of the parathyroid hormone is to regulate blood calcium levels, what education would you provide your patient when discussing high levels of parathyroid hormone and its effects on muscle degeneration (sarcopenia)?
a. Exercise 2-3x/wk to combat age-related muscle wasting
b. Increase sun exposure and vitamin D consumption to indirectly regulate PTH
c. Eliminate dairy from their diet to indirectly decrease serum calcium levels
d. None of the above
b. Increase sun exposure and vitamin D consumption to indirectly regulate PTH
Which is false about aging?
A. Cytokine activity increases leading to a decrease in muscle mass formation
B. Cytokine activity leads to a decrease in fat mass
C. An increase in cytokine activity correlates with an increase in sarcopenia
D. None of the above
B. Cytokine activity leads to a decrease in fat mass
What is the key mechanism to muscle loss associated with human aging? Frailty Loss of myocytes via apoptosis Diminished muscle strength due to disuse Changes in hormone levels
Loss of myocytes via apoptosis
What condition is associated with skeletal muscle loss most commonly in an obese population
- COPD
- Diabetes
- Stroke
- Parkinsons
- Diabetes
Which of the following is not a genetic trait that affects muscle performance and strength?
a. Body Size
b. Muscle fiber number
c. Body weight
d. body segment lengths
c. Body weight
Significant strength improvements can occur in patients up to what age?
a. 70
b. 80
c. 50
d. 60
b. 80
What are the variables that may affect the strength response in individuals who are participating in resistance training?
o A) Age and race
o B) Age and gender
o C) Age and duration of training
o D) Age, gender, and duration of training
o D) Age, gender, and duration of training
Which of the following is the strongest predictor of self-reported functional status and falls in older adults? A. Upper extremity strength B. VO2 Max C. Leg muscle power D. General flexibility
C. Leg muscle power
All of the following are true regarding resistance training in older adults EXCEPT:
a. Resistance training decreases fatty infiltration
b. Resistance training increases muscle mass, muscle strength, and power
c. Resistance training is more predictable in older populations
d. Resistance training should occur prior to age 80
c. Resistance training is more predictable in older populations
Eccentric training would benefit older adults presenting with:
a. HTN
b. No comorbidities
c. Diabetes
d. All of the Above
d. All of the Above