Holmes v. Bruce Motor Freight, Inc.

UHLENHOPP, Justice.

The question in this workmen’s compensation appeal is whether claimant established as a matter of law that a heart attack (myocardial infarct) arose out of and in the course of his employment. See Code 1973, § 85.3(1). A heart attack, if attributable to the employment, is a com-pensable “injury,” although the claimant already had latent heart disease. Littell v. Lagomarcino Grupe Co., 235 Iowa 523, 17 N.W.2d 120. The claimant has the burden of proving by a preponderance of the evidence that some employment incident or activity brought about the health impairment on which he…