HMS, BM EQ-Bank 320 Outline the immediate heart rate response when an individual begins aerobic exercise. (3 marks) --- 6 WORK AREA LINES (style=lined) --- Show Answers Only Sample Answer When an individual begins aerobic exercise, there is an immediate increase in heart rate. This occurs due to increased stimulation from the sympathetic nervous system. The heart rate increases in proportion to exercise intensity to deliver more oxygen and nutrients to the working muscles. Show Worked Solution Sample Answer When an individual begins aerobic exercise, there is an immediate increase in heart rate. This occurs due to increased stimulation from the sympathetic nervous system. The heart rate increases in proportion to exercise intensity to deliver more oxygen and nutrients to the working muscles.