(1) For the purposes of this Act, the current work capacity of a worker is constituted by a present inability arising from a work injury such that the worker is not able to return to his or her employment at the time of the occurrence of the injury but is able to return to work in suitable employment.
(2) For the purposes of this Act, a worker has no current work capacity if the worker has a present inability arising from a work injury such that the worker is not able to return to work, either in his or her employment at the time of the occurrence of the injury or in suitable employment.