A method ofproduc-ing a modified acellular tissue matrix(mATM) from an acellular tissuema-trix (ATM), where the mATM has areduced stretchiness relative to theATM, without substantiallycompro-mising its associated structural orfunctional integrity. The methodin-cludes providing an acellular tissuematrix (ATM) and exposing theATM to elastase for a period of time.