Cite as 325 Ark. 163 (1996)
v. Desha County Tax Assessor's Office, 45 Ark. App. 95, 871 S.W.2d 429 (1994). The answer to this issue naturally turns on the sufficiency of the evidence.
[3, 4]This court views the evidence and all reasonable inferences therefrom in the light most favorable to the Commission's decision and affirms that decision when it is supported by substantial evidence. Kuhn v. Majestic Hotel, supra; Plante v. Tyson Foods, Inc., supra; Morgan v. Desha County Tax Assessor's Office, supra. The Commission's decision will be affirmed unless fair-minded persons with the same facts before them could not have arrived at the conclusion reached by the Commission. Kuhn v. Majestic Hotel, supra; Plante v. Tyson Foods, Inc., supra; Morgan v. Desha County Tax Assessor's Office, supra; Tracor/MBA v. Baptist Medical Center, 29 Ark. App. 198, 780 S.W.2d 26 (1989). Credibility of the witnesses is a matter exclusively within the province of the Commission. See Kuhn v. Majestic Hotel, supra;
[5, 6]The Commission found that Gansky had temporarily aggravated a pre-existing condition. That is a compensable injury. See, e.g., Curry v. Franklin Elec., 32 Ark. App. 168, 798 S.W.2d 130 (1990). The Commission admitted this in its opinion and order. But then the Commission concludes that the aggravation was over by February 25, 1993, and that Gansky was essentially symptom-free. In doing so, the Commission discounted the fact that Dr. Gocio had ordered a functional capacity assessment for Gansky and had refrained from releasing him from his care until that examination was completed and he could decide whether Gansky could return to work. At that juncture, Hi-Tech intervened and refused to pay for additional medical care, including the functional capacity assessment. Hence, that essential examination ordered by Dr. Gocio was never performed, and a final evaluation by the neurosurgeon was never made. The Commission appears to have concentrated on the reports of the physical therapist as opposed to those of Dr. Gocio. Under these circumstances when the treating neurosurgeon has prescribed a functional capacity assessment and that was not done because Hi-Tech would not pay for it, we cannot agree with the Commission that additional medical treatment was not reasonably necessary or that the healing period had ended. We conclude that fair-minded persons, viewing the same evidence, could not decide otherwise.
Moreover, the record, as the Commission states, does not
