Hi Elena G.,
Bizarre question! What kind of injury -- strains? Microtraumas? Bruises (contusions)? Hypoxia damage? Lactic acidosis "injury"? Freezing? Cooking from absorbed microwave radiation? You will need some context to start to answer this question, I think. The easiest "fruit" to pick would probably be superoxide dismutase, I suppose, protecting against free radical damage. If you get interested in this, you might read up on how bats protect themselves (biochemically/physiologically) as they exert themselves in flight. -- Cheers, -- Mr. d.