Define Fitness.

• A. A person's work capacity across a broad time and modal domains
• B. The ability to lift heavy weights only
• C. Cardio endurance
• D. The capacity to endure stress without any rest

Answer: (A)

Fitness is the overall capacity to perform work across a broad range of activities, times, and modalities. This means being able to handle different tasks—short bursts of effort, longer sustained activity, and varied types of physical demands—across multiple fitness domains such as strength, endurance, power, flexibility, and balance. The option describing work capacity across diverse durations and modes captures this broad, integrated view of fitness. The other descriptions are too narrow: lifting heavy weights emphasizes maximal strength in one area, cardio endurance focuses only on aerobic capacity, and enduring stress without rest highlights a single aspect rather than overall work ability across tasks.