I hate to impose reason and yet question whether rigor mortis would apply to a body that “will not see decay” according to the Psalmist. It is interesting to note as well, that the text of scripture is not explicit in stating there are visible wounds upon the body of the risen Christ. The most striking thing about the entire work of Christ and His Gospel to this day, is how His everlasting mercies are hidden under the Cross and not worked out in the glorious fashion we would all expect.
John 20:27 Then He said to Thomas, “Reach your finger here, and look at My hands; and reach your hand here, and put it into My side. Do not be unbelieving, but believing.”