Name a key principle of physical fitness that PRT emphasizes.

The key principle of physical fitness that PRT emphasizes is progression, variety, and specificity. Progression refers to the necessity of gradually increasing the intensity, duration, or difficulty of physical activities to continuously challenge the body and promote improvements in fitness. Variety keeps training interesting and reduces the risk of injury or burnout by incorporating different exercises and physical activities. Specificity underscores that training should focus on the specific adaptations that one wishes to achieve, meaning that different fitness goals, such as building endurance or strength, require different training approaches.

These principles ensure that Physical Readiness Training remains effective and engaging for soldiers, meeting the diverse needs of individuals while enhancing their overall physical readiness.