The Margaria-Kalamen test: The MargariaKalamen test is used by physical educators as a measure of leg strength. An individual runs up a staircase, and the elapsed time from the third to the ninth step...

The Margaria-Kalamen test: The MargariaKalamen test is used by physical educators as a measure of leg strength. An individual runs up a staircase, and the elapsed time from the third to the ninth step is recorded. The power score is calculated using a formula involving the individual’s weight, the height of the stairs, and the running time. The following table21 shows the power scores required of men for an excellent rating for selected ages.

a. What is the average rate of change per year in

excellence level from 25 years to 35 years old?

b. What power score would merit an excellent rating for a 27-year-old man?

c. During which 10-year period from age 25 to 55

would you expect to see the greatest decrease in

leg power?