Which of the following best describes aerobic training?

Aerobic training is best described as sustained physical activity that enhances lung and aerobic capacity. This type of training involves activities that are performed at a steady pace over an extended period, which helps improve the efficiency of the cardiovascular system, enabling the body to use oxygen more effectively. Engaging in exercises such as running, cycling, or swimming at moderate intensity for longer durations exemplifies aerobic training. By focusing on endurance and developing stamina, this form of exercise is crucial for overall fitness and is beneficial for heart health, enhancing stamina, and supporting weight management.

The other options describe different training methodologies. High-intensity training with low recovery pertains more to anaerobic exercise, involving short bursts of intense activity, which is not sustained like aerobic training. Short bursts of activity with adequate rest also pertain to anaerobic training. Lastly, training involving weights and resistance focuses on building muscle strength rather than improving aerobic capacity. Therefore, the distinguishing factor of aerobic training is its emphasis on prolonged, moderate-effort activity that boosts lung function and overall aerobic fitness.