During a memory test, diamond listens as a list of numbers is read to her. when the list is done she has to repeat the numbers from memory. each time she correctly recalls all of the numbers, another number is added to the list. if diamond has an average capacity of short-term storage, she should remember about (plus or minus 2) numbers before she starts making errors.

A72-year-old woman fell in her bathtub and fractured her hip. in viewing the fracture, x-ray revealed osteoporotic changes in her bone as well. after reduction of the fracture, and immobilizing the bones with internal pins, what type of exercise would the doctor have advised her to do as soon as she was able in addition to prescribing calcium supplements to improve her bone mass?