Respuesta :
If Cecelia wants to lower her heart rate she should lower the speed she is going at on her tradmill so that she does not have to breath was much for oxygen
The question is basically asking us "How can Cecilia do to lower her heart rate at they gym?" In order to do this, she can do more moderate exercise as opposed to high-intensity workouts. Yoga is a type of exercise that does not involve high-intensity movements.