In State ex rel. Wyoming Worker's Compensation Div. v. Roggenbuck, 938 P.2d 851 (Wyo. 1997), another substantial evidence case, the Court upheld an award of benefits to a claimant for aggravation of a preexisting condition. Despite the claimant's extensive history of back problems, two previous back surgeries, and the fact that he filed a report of injury only nine days into his new employment, the Court concluded he presented substantial evidence that his work contributed to a material degree to the precipitation, aggravation or acceleration of his preexisting condition.