What represents a physiological benefit that results from consistent cardiorespiratory training regarding blood pressure?

The reduction of submaximal blood pressure as a benefit of consistent cardiorespiratory training is well-documented in exercise science. When individuals engage in regular aerobic exercise, such as running, cycling, or swimming, their cardiovascular system adapts positively over time. One of the primary adaptations is improved vascular function, which can lead to a decrease in blood pressure during submaximal efforts, meaning when the body works at lower intensities rather than maximum exertion.

This decrease in submaximal blood pressure indicates that the heart is becoming more efficient at pumping blood, and that the blood vessels are responding more effectively to changes in blood flow. This is particularly beneficial in terms of overall cardiovascular health, as lower blood pressure at submaximal levels is associated with reduced strain on the heart and vascular system, lowering the risk of hypertension and associated cardiovascular diseases.

The other options do not depict physiological benefits associated with consistent cardiorespiratory training in relation to blood pressure. For instance, higher resting heart rate and increased physical fatigue would imply a less efficient cardiovascular system, while elevated blood lactate levels are often indicative of anaerobic metabolism, which is less pronounced in those who engage in regular, efficient aerobic exercise.