What are the three core components of physical readiness training (PRT)?

• A. Endurance, Strength, and Mobility/Flexibility.
• B. Cardio, Speed, and Agility.
• C. Diet, Sleep, and Hydration.
• D. Technique, Discipline, and Courage.

Answer: (A)

Physical readiness training builds what your body can do over the course of a mission, and it centers on three key areas: endurance, strength, and mobility/flexibility. Endurance covers the ability to sustain activity for longer periods—think running, marching, rucking, or repeating tasks without draining quickly. Strength provides the capacity to move heavy loads, lift, carry, and perform tasks under resistance, which protects joints and improves efficiency in real-world tasks. Mobility and flexibility keep joints moving through their full range of motion with control, which helps maintain technique and reduces injury risk during dynamic movements and varied terrain.

A balanced PRT plan combines all three: cardio or interval work to build endurance, resistance training for strength, and dedicated mobility/flexibility work to maintain range of motion and resilience. The other options mix different ideas—cardio, speed, and agility focus on conditioning and motor skills; diet, sleep, and hydration are essential health factors but not the three PRT components; and technique, discipline, and courage reflect attitudes or behaviors rather than physical capability.