Which cardiovascular exercise is often incorporated in PRT?

Running or marching is commonly incorporated into Army Physical Readiness Training (PRT) because it specifically targets the goals of improving cardiovascular endurance, which is crucial for military readiness. This type of exercise mimics the physical demands that soldiers may experience in real-life scenarios, such as during tactical movements or missions.

Moreover, running and marching play a significant role in building leg strength, stamina, and overall fitness, which aligns with the Army's emphasis on readiness. The incorporation of this exercise into training routines also helps maintain and develop the cardiovascular system, leading to improved performance in various soldier tasks.

While other options like cycling, swimming, and jump rope are indeed beneficial cardiovascular exercises, they are not as frequently emphasized in the context of PRT, which prioritizes activities that closely resemble the physical exertion and endurance required in typical military operations.