Circuit training is effective for improving which two fitness components?

• A. Strength and flexibility
• B. Endurance and speed
• C. Balance and coordination
• D. Power and reaction time

Answer: (A)

Circuit training uses short, high‑intensity exercise bursts with minimal rest, designed to train multiple fitness elements in one session. This setup naturally emphasizes building muscular strength through resistance stations and maintaining or improving mobility and flexibility through a variety of movements, often with dynamic stretches or mobility work between stations. Because you repeatedly push muscular effort while moving through different positions and ranges of motion, you see solid gains in both strength and flexibility. While endurance and other aspects can improve as well, the combination of lifting effort and broad movement makes strength and flexibility the most directly developed in a typical circuit training format.