What methods can help prevent overtraining while training for an endurance event, such as the Marine Corps Marathon?

The recommended method to prevent overtraining while preparing for an endurance event, such as the Marine Corps Marathon, focuses on a holistic approach to training and recovery. Getting adequate rest, listening to your body, maintaining a healthy diet, and monitoring your resting heart rate are essential components that help manage training loads and ensure recovery.

Rest is critical as it allows the body to repair and strengthen after training sessions. Listening to your body helps identify signs of fatigue or stress that could lead to overtraining. A healthy diet fuels your workouts and provides the necessary nutrients for recovery, while monitoring resting heart rate can be an effective indicator of your training intensity and recovery status. If your resting heart rate is consistently higher than usual, it could signal that your body needs more rest or that you are at risk of overtraining.

The other methods outlined, such as increasing workout duration or focusing solely on high-intensity workouts, could potentially lead to increased stress and fatigue without adequate recovery. Avoiding any form of exercise is also not a viable option, as regular training is necessary to build endurance and performance in endurance events. Thus, the comprehensive strategy encapsulated in the correct answer is crucial for effective training and injury prevention.