https://historydb.date/wiki/Th....e_Non_Electric_Tread
Benefits of a Non Electric Treadmill Non-electric treadmills do not have motors. You have to power them by using your legs. This kind of treadmill has many advantages. One manufacturer claims that its curved deck encourages runners to be more efficient in their gaits. Studies have found that short (4-min) intervals on an arced nonmotorized treadmill significantly alter the gait patterns of runners. They Are More Convenient You won't have to fret about your treadmill running out of electricity or having
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