RD-1 rotor for lower limb exercise

The rotor for lower limb exercise has a structure that enables to its attachment to vertical or horizontal elements, thus enhancing the stability of the device and allowing more intense exercise.
The knob located horizontally at the height of the axis of crank rotation is used for smooth adjustment of the resistance.
Optionally, the rotor can be fitted with Velcro straps securing the foot to the pedal, equipped with wire hooks, or short boots made of plywood with leather straps (RD-1s rotor).