Treadmills have been around for some time now, perhaps the most common and the simplest exercise machines. Treadmill workouts are popular all around the world.. Most of the times its better than walking outdoors when you don’t have to worry about the weather while working out on treadmills. A treadmill allows a person to walk for hours and stay in one place.   The earlier models of treadmills were manual treadmills, simple without any electronics or motors. Only the energy of the user was needed to exercise on a treadmill. The newer, more expensive treadmills are usually electric. You can have a combination of different settings, so the faster you choose to go, the higher you can turn it up. The newer models can have many features according to the model you buy, features like adjustable incline height, speed adjustments, monitors to collect the data of your work out and programming the intensity. They can even be foldable so that you can fold them neatly when not in use. It has come a long way since the time people started using it. A survey conducted by Sporting Goods Manufacturers Association tells that people spend more on treadmills than other exercise/fitness […]