The invention provides a load type
treadmill, which is provided with drag devices on the basis of the prior
treadmill for training in the state of increasing resistance. The load type
treadmill consists of a pair of swinging arm devices and a group of two feet fixing devices. When a sporter pushes and pulls swinging arm rods connected with a drag device through a gear, a rack and a connecting rod, two hands can meet resistance when moving forwards or backwards, and the resistance can be adjusted. Besides, when the two feet fixing devices are applied with force to move forwards and backwards, the two feet fixing devices can drive a cable
pulley to be connected with the drag device through a hauling cable; therefore, two feet can meet resistance when moving forwards and backwards, and the resistance can be adjusted; and at the same time, the hauling
rope not applied with force can be automatically withdrawn by the cable
pulley provided with an overrunning coupler and a
torsion spring. In order to prevent the body from moving forwards and backwards, the treadmill is also provided with a
body positioning device. Moreover, the height, tilt angle and level angle of the swinging arm devices can be adjusted according to self condition of the sporter. If all the drag devices and resistance are unloaded, the load type treadmill can be taken as a common treadmill for use.