https://yamcode.com/what-is-no....n-electric-treadmill
Getting Your Feet Wet With a Non Electric Treadmill If you want to try your feet on the water using a treadmill that isn't motorized, consider the NordicTrack Commercial X22i. comes with both an electric motor as well as an option for manual operation. They promote proper running technique as they force you to lower your hips and engage the right muscles. They are also more responsive to speed changes and are therefore ideal for HIIT training. Manual Treadmills Manual treadmills use your own muscle power to
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