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Is a Manual Treadmill Better Than Electric? Manual treadmills do not come with motors to power them, they run only by the power of your own energy. This type of equipment is an excellent option for runners, as it assists them in powering through their strides. Think about a flat-belt or curved manual treadmill if you wish to increase your heart rate even at lower speeds. Here are a few reasons why. 1. It's More Challenging A manual treadmill is an excellent alternative if you're looking to test yourself and add some serious intensity to your fitness