Abstract
Commercially available rehabilitation machines are bisymmetric, and the structure of the machines is fixed. Consequently, they cannot meet various requirements for lower-limb rehabilitation, and people have to adapt themselves to the machines to do exercises. To solve this problem, this paper presents a new kind of rehabilitation machine for the lower limbs. It is left-right asymmetric, and the structure and load of the machine can easily be adjusted to suit different requirements for lower limbs. A prototype of a half model of the machine for one leg is designed and built, and some results of preliminary tests are presented.