What protocol should be followed when assessing a client's cardiovascular response to exercise?

Combining objective and subjective measures provides a comprehensive understanding of a client's cardiovascular response to exercise. Objective measures, such as heart rate, blood pressure, and oxygen consumption, provide quantifiable data that can be monitored throughout the exercise. On the other hand, subjective measures, such as perceived exertion and client feedback on how they feel during and after exercise, offer valuable insights into the client's personal experience and tolerance.

This dual approach is important because it allows the practitioner to gauge not only the physiological changes that occur during exercise but also the psychological and emotional aspects that can affect performance and recovery. By integrating both types of measures, practitioners can make more informed decisions regarding exercise prescription, safety, and overall program effectiveness.

The other choices lack this holistic approach: relying solely on subjective measures may miss critical physiological indicators, assessing only at peak exercise fails to capture both the response during and recovery from exercise, and recording only post-exercise provides a limited view of the cardiovascular response throughout the activity.