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Treadmill Machine Without Electricity A treadmill is a fantastic cardio machine for running, walking or even for interval training. The treadmill has flat belts with incline settings, and a screen that displays time, speed distance, calories, and distance burned. It also has a power cord that's difficult to reach for children and could prevent them from accidentally strangling themselves. This is a problem that motorized treadmills are prone to. Safety Features A treadmill is a massive and heavy machine that can be moved at speeds of 12 or 10 miles
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