What benefit does targeted conditioning provide to a horse's cardiovascular system?

Targeted conditioning is specifically designed to enhance a horse's physical performance by focusing on the development and efficiency of their cardiovascular system. By engaging in structured workouts that gradually increase in intensity and duration, the horse's heart muscle becomes stronger. A stronger heart can pump blood more effectively, delivering oxygen and nutrients to the muscles during exercise and improving overall stamina.

This process not only enhances the horse's athletic performance but also contributes to better health and longevity. A well-conditioned cardiovascular system is crucial for optimum performance, as it helps the horse to cope with the demands of various activities without undue strain. Strengthening the heart through targeted conditioning allows for better endurance and can improve the horse’s ability to participate in sustained physical effort.

The other options, while related to physical fitness, do not pinpoint the primary benefit of targeted conditioning on the cardiovascular system as accurately as the strengthening of the heart does.