Week 6: Tuesday, Oct 10th

Which of the following is an accurate neuromuscular change associated with aging?

Different fiber types are spread more randomly through the muscle

More type 1 muscle fibers lost vs type II

Fewer and larger motor units (correct)

Fewer and smaller motor units

Which of the following is an accurate functional consequence of neuromuscular aging?

Force steadiness declines for females but not males

Force steadiness declines for both males and females across all force levels (correct)

Force steadiness declines for males but not females

Force steadiness is independent of strength

What is the age difference between the young and old adults in the study?

40 years

39 years (correct)

21 years

31 years

What is the abbreviation for the study mentioned in the text?

CV Signup and view all the answers

What is the force level at which the raw force outputs were measured?

10% MVC Signup and view all the answers

What is the reference for the study mentioned in the text?

Pethick, J., Taylor, M. J. D., & Harridge, S. D. R. Signup and view all the answers

Which of the following is a consequence of aging on the muscle-tendon unit?

Muscle fiber atrophy Signup and view all the answers

What is the definition of sarcopenia?

The progressive decline of muscle mass and function to a critical low Signup and view all the answers

Which of the following is a pathological consequence of age-related skeletal muscle weakness?

Physical frailty Signup and view all the answers

What are ADLs and IADLs?

Activities of daily living and instrumental activities of daily living Signup and view all the answers

What is the estimated prevalence of sarcopenia in the USA?

More prevalent in females Signup and view all the answers

What is the difference between sarcopenia and dynapenia?

Sarcopenia is low muscle mass, while dynapenia is low muscle function Signup and view all the answers

Which of the following is NOT one of the criteria for frailty according to Fried et al.?

Unintentional weight gain Signup and view all the answers

What is the difference between prefrail and frail exercise prescription?

Less time on balance for frail Signup and view all the answers

Which clinical measure can distinguish between pre-frail, mildly frail, moderately frail, and severely frail individuals?

The CSHA Frailty Scale Signup and view all the answers

What should non-frail older adults follow as exercise recommendation according to the text?

CSEP 24 hour movement guidelines for older adults Signup and view all the answers

What is the focus of the exercise program in the study by Bray et al.?

Functional exercises Signup and view all the answers

What should be assessed before starting an exercise program according to the text?

Fall risk Signup and view all the answers

What is the primary prevention strategy mentioned in the text?

Incorporating muscle strengthening exercise into an individual's routine Signup and view all the answers

According to the text, is it ever too late to incorporate muscle strengthening exercise into an individual's routine?

No Signup and view all the answers

Week 6: Tuesday, Oct 10th_MC

Questions and Answers