https://www.openlearning.com/u..../pilegaardmalling-sk
Types of Treadmills - Electric and Non Electric You can boost your physical load by running on a treadmill, without needing an electrical outlet. If you want to maximize your training gains however, you should look beyond the standard motorized treadmills. Manual treadmills, also referred to as self-propelled treadmills, or non-motorized machines make use of your body weight and effort to move the belt. These machines typically have a slight slope and a curve that help