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Getting Your Feet Wet With a Non Electric Treadmill Consider the NordicTrack Commercial X22i If you're looking to test out a non-motorized model. The model that is hybrid includes both an electric motor and an option for manual operation. Flat manual treadmills promote correct running technique by requiring you to place your feet precisely beneath your hips and engage the correct muscles. They also respond more quickly to changes in speed which makes them perfect for high-intensity training. Ma
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