delivered the opinion of the court:
Respondent employer City of Granite City, Illinois, appeals from *1089an order of the circuit court of Madison County finding the decision of the Illinois Industrial Commission (Commission) to be against the manifest weight of the evidence and finding that claimant James Reader was entitled to temporary total disability (TTD) benefits for the additional period of September 11, 1991, through February 11, 1992, the date of the arbitration hearing. The arbitrator awarded claimant TTD benefits for the period February 13, 1991, through April 17, 1991, and August 28, 1991, through September 8, 1991, a total of 104/7 weeks, at a rate of $410.10 per week (820 ILCS 305/8(b) (West 1992)) and awarded $19,233.27 for reasonable and necessary medical expenses (820 ILCS 305/8(a) (West 1992)). The Commission, with one commissioner dissenting, affirmed the award.
The issue is whether the decision of the Commission awarding TTD to September 8, 1991, was against the manifest weight of the evidence. Claimant argues that the Commission should have extended the period of TTD to February 11, 1992. We reverse the circuit court and affirm the Commission.
Claimant’s application for adjustment of claim alleged a right knee injury on February 3, 1991. Claimant testified that on February 3, 1991, he was a sergeant for the respondent’s police department. His knee was twisted while on duty during an attempt to subdue a suspect. Previously, he had no right knee injury. This appeal presents no question concerning the nature of claimant’s injury or whether his condition had stabilized prior to September 8, 1991.
It is not disputed that claimant had two surgeries for his work injury. On February 13, 1991, arthroscopic surgery was performed. Dr. Joseph Whalen performed a lateral meniscectomy of the right knee. Then on March 6, 1991, Dr. Whalen performed a total lateral meniscectomy.
The first day claimant took off of full-duty work was on February 13, 1991, for his first operation. After both surgeries, he returned to light-duty work on April 17, 1991. He was given temporary light duty with the detectives. He went back off work again on August 28, 1991, returning temporarily on September 8, 1991. He went off work September 9, 1991, and did not return to work. Claimant informed the department by letter of his intention to take disability retirement. The letter indicated his last day of work with the department was September 10, 1991, and his first day of retirement was September 11, 1991.
Prior to taking disability retirement, claimant had been offered temporary light-duty work. No one told him when the temporary light duty would end. There was no indication that the department was getting ready to terminate his employment. At the time of his *1090retirement, he was working at a desk in uniform on deceptive practices cases. He was getting full benefits as a police officer and was working 40 hours per week.
It was claimant’s understanding that disabled officers could not remain under the pension system, and if the pension board would not let them stay, they could not be police officers. Claimant admitted that he applied for disability, and that no one in the department ever told him there was no light-duty work available for him and he was aware an Officer Polivick was kept on light duty for a year, receiving full pay and benefits as a police officer.
The time during which a worker is temporarily totally disabled is a question of fact. The Commission’s decision will not be disturbed unless it is against the manifest weight of the evidence. Archer Daniels Midland Co. v. Industrial Comm’n, 138 Ill. 2d 107, 118-19, 561 N.E.2d 623, 627-28 (1990). In this case, the Commission adopted the arbitrator’s finding that claimant voluntarily left his light-duty job and removed himself from the work force in order to collect a pension and, as a result, was not entitled to additional TTD.
The duration of TTD is controlled by the claimant’s ability to work and his continuation in the healing process. To show entitlement to TTD benefits, claimant must prove not only that he did not work, but that he was unable to work. Gallentine v. Industrial Comm’n, 201 Ill. App. 3d 880, 887, 559 N.E.2d 526, 531 (1990). In Presson v. Industrial Comm’n, 200 Ill. App. 3d 876, 880-81, 558 N.E.2d 127, 131 (1990), the Commission’s finding that the period of TTD ended when claimant was offered a light-duty job within his restrictions was upheld. The claimant refused to even attempt to do the job. Similarly, in Gallentine, three doctors cleared the claimant to return to light-duty work, and the employer attempted to provide a job within the restrictions. There was no medical testimony corroborating claimant’s testimony that she could not work at the light-duty job. The denial of TTD after the claimant refused to continue working the light-duty job was upheld. Gallentine, 201 Ill. App. 3d at 887-88, 559 N.E.2d at 531-32.
In this case there is no medical evidence that claimant could not return to light-duty work. The Commission did not decide that, as a matter of policy, a person is not simultaneously entitled to workers’ compensation benefits and disability pension benefits under a statutorily created pension fund. The claimant did not present any evidence to show that his injury was not stabilized or that he could not perform light-duty work. The parties, the arbitrator, and the Commission became consumed with claimant’s application for a disability pension, his eligibility to stay in the pension system if he was *1091disabled and on light duty, and his retirement. These may be proper considerations in a permanent disability setting. However, there is a distinction between when an officer is entitled to a pension and whether the officer is entitled to TTD. The claimant was given light duty. He does not argue that his injury was not stabilized, that he was not released for light duty, or that he could not physically perform the light-duty assignment. Although the pension board may have eventually sought claimant’s termination as a police officer, claimant was not entitled to anticipate that action by the board, terminate his employment when light-duty work was available to him, and still collect TTD benefits. The Commission’s decision was not against the manifest weight of the evidence.
The judgment of the circuit court of Madison County is reversed, and the Commission’s decision is reinstated. The cause is remanded to the Commission pursuant to Thomas v. Industrial Comm’n, 78 Ill. 2d 327, 399 N.E.2d 1322 (1980).
Circuit court reversed; Commission decision reinstated.
RAKOWSKI, COLWELL, and HOLDRIDGE, JJ„ concur.