During exercise, which of the following would occur on an electrocardiogram (ECG) compared to an individual at rest?
A) the time from one R to the R of the next heartbeat would decrease
B) the P-R interval would decrease
C) the S-T segment would decrease
D) the T wave would decrease

Question

Quizplus · Accepted Answer

During exercise, the heart rate increases, which means the time between heartbeats decreases. This is reflected on an ECG as a shorter interval between R waves. The other options are not accurate changes that occur on an ECG during exercise.

During Exercise, Which of the Following Would Occur on an Electrocardiogram