Cardiovascular adaptations to anaerobic training include which of the following?

The choice of decreased resting heart rate as a cardiovascular adaptation to anaerobic training is accurate because this training enhances the efficiency of the heart. As an individual engages in anaerobic training, the body adapts in a way that strengthens the heart muscle, allowing it to pump blood more effectively. This increased efficiency often leads to a lower resting heart rate. A well-conditioned heart needs fewer beats per minute to deliver the same amount of blood to the body, which is a sign of improved cardiovascular fitness.

In contrast, increased lung capacity and improved oxygen delivery are more directly associated with aerobic training rather than anaerobic. Anaerobic activities primarily improve muscle strength and power rather than lung function or overall oxygen transport capabilities. The idea that heart rate would increase at rest is also contrary to the effects seen with regular anaerobic training, since a trained athlete typically has a lower resting heart rate due to the aforementioned increased efficiency of heart function.