“There are a few studies that indicate that manual treadmills require increased oxygen and metabolic demands on the runner, presumably improving cardiovascular fitness compared to a motorized ...

PowerMax Fitness TDM-98 (4.0HP Peak) Foldable Motorized Manual Incline Treadmill for Home Use, 110kg Max User, Max Speed-12kmph, Preset, Heart Rate Sensors, AUX, Speaker, USB, LED Display ...