Question

Between the ages of 45-64, which of these changes would be expected to occur? Select one: a. increase in bone mass b. increase in resting energy requirements c. increased maximum heart rate d. degenerative joint changes

Answer 1

Ans: Between the ages of 45-64, the change that would be expected to occur is (d) degenerative joint changes.

Explanation:

(a) The period between early adulthood and old age, is considered as the years from about 45-64, which is called as Middle age. Bone mass can greatly increased between the ages of 10-20 with a calcium-rich diet and regular weight bearing exercise while with incresing age beyond 45, as body reabsorb calcium and phosphate from bones instead of keeping these minerals inside the bones, there will be no significant increase in bone mass rather bone loss can be seen as osteoporosis.

(b) As, general nutrient reuirements and healthy eating guidelines applied to older peoples but energy requirements fall with advancing age due to a decrease in basal metabolic rate and decreased levels of metabolic activity.

(c) Aging can cause changes in heart and blood vessels. With increase in age beyond 45, heart can't beat as fast as younger heart. So, number of heartbeats decreases day by day with increase in age.

(d) With increasing age, body starts showing some degenrative changes in joints often called as osteoarthritis, which is one of the classical age related joint disorder. Degradation and loss of articular cartilage is a central feature leading to 'wear and tear' in osteoarthritis.