In Horne v. Workers' Compensation Appeal Board (Chalmers and Kubeck), 840 A.2d 460 (Pa. Cmwlth. 2004), the claimant, who was an industrial mechanic, had sustained an injury to his knee in the course of his employment. He returned to full duty after several months performing light-duty work for the employer. After returning to his pre-injury status, the claimant apparently was unable to fulfill his full responsibilities in that position. The claimant voluntarily left his employment and accepted a different, less stressful, but more highly compensated position with another employer. When the new employer laid the claimant off, he filed a claim petition against the previous employer for whom he had worked as a mechanic. During the periods of unemployment that followed, the claimant received unemployment compensation benefits. Ultimately, the claimant obtained another job, but he continued to have problems with his knee during this employment. A physician recommended a particular treatment and the claimant asked a representative of the insurer for his initial employer whether it would pay for the treatment. Following a denial of this request, the claimant filed a claim petition seeking compensation for periods of alleged disability following his lay-off. A WCJ granted the claimant's petition, but did not grant him any wage loss benefits, concluding that the claimant had left his job with his original employer for reasons unrelated to his work injury. Both claimant and employer appealed to the Board, but the Board affirmed.