When the body exercises, acute responses occur in the cardiovascular system, and our presenter wants to know more as she does her workout. Drawing on the expertise of a Cross Fit coach, a highly trained athlete and a sports scientist, she explores how the muscles' demand for more oxygen is met by changes in the heart rate, stroke volume, cardiac output and blood pressure.

Originally released by Video Education Australasia, 2016. Streaming video file encoded with permission for digital streaming by Infobase on January 19, 2017.