Treadmills are popular exercise machines that simulate walking, jogging, or running on a moving belt. Gyms and fitness centers, along with homes for personal use, commonly house these machines. People of various fitness levels can use it as a convenient and efficient way to achieve cardiovascular fitness.

Originally, scientists and medical professionals developed treadmills to test heart and lung function and measure exercise capacity. Modern treadmills have evolved to include various features and options, making them accessible and beneficial for a wide range of fitness goals..