sentence2_structure: The term cardiac output<>calculated<>by multiplying heart contractions by stroke volume$$$The term cardiac output, calculated by multiplying heart contractions by stroke volume<>means<>the volume of blood pumped by the heart in one minute
sentence1: Researchers measured cardiac output, heart rate, stroke volume, blood pressure and oxygen consumption during rest and exercise.
sentence2: The term cardiac output, calculated by multiplying heart contractions by stroke volume, means the volume of blood pumped by the heart in one minute.
question: What term, calculated by multiplying heart contractions by stroke volume, means the volume of blood pumped by the heart in one minute?