?url_ver=Z39.88-2004&rft_id=doi%3A10.1007%2Fs12662-019-00582-5&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Roldan-Reoyo%2C+Olga&rft.aufirst=Olga&rft.aulast=Roldan-Reoyo&rft.issn=2509-3142&rft.title=German+Journal+of+Exercise+and+Sport+Research&rft.volume=49&rft.pages=446-453&rft.issue=4&rft.date=2019&rft.atitle=Influence+of+maternal+physical+exercise+on+fetal+and+maternal+heart+rate+responses&rft.genre=article