Jogging machine for sprinting training, has belt driven entirely by leg movement and force required to move belt can be altered by adjusting weight of belt guide roll

摘要

The forces which the user (1) has to generate in order to move the belt (3) can be altered by adjusting the weight of one of the guide rolls (4) for the belt. This weight adjustment can be carried out by placing metal discs on the roll axle (6).