Nadia used to run a lot, but her knees have been bothering her lately. She wants to purchase a piece of fitness equipment that will help her keep up her cardio endurance levels while not putting a lot of pressure on her knees and joints. What is the BEST purchase for Nadia to make?
(1 point)
Responses
an adjustable plate-loaded barbell
a nautilus machine
a treadmill
an elliptical trainer