Vignette #2 Jill is 32 years old, and after years of a mostly sedentary life is determined to get into shape. She decides to take up jogging but cannot decide whether to jog at a moderate pace or very fast pace, and has no idea how long to continue. Jill also wants to learn to monitor her heart rate and pulse. She was a gymnast in high school but can no longer touch her toes. Suggest how Jill should get started by answering these questions.
When Jill engages in activities of low to moderate intensity for greater than 20 minutes at a time, her muscles' main source of energy is ____.

Question

Quizplus · Accepted Answer

When engaging in activities of low to moderate intensity for greater than 20 minutes, the muscles' main source of energy is fat. Jill should start by jogging at a moderate pace for at least 20 minutes, gradually increasing the duration and intensity as her fitness improves. She should use a heart rate monitor to ensure she is within her target heart rate zone, which can be determined using a simple calculation based on her age and maximum heart rate. Jill should also incorporate stretching exercises into her routine to improve flexibility and prevent injury.

Vignette #2 Jill Is 32 Years Old, and After Years