What is a key component for improving core strength in dance?

Improving core strength is essential for dancers as it provides stability, balance, and control in movement. Focusing on exercises like sit-ups effectively targets the abdominal muscles, which are a major component of core strength. Gradually increasing repetitions allows for progressive overload, which is crucial in building muscle endurance and strength over time. Strengthening the core through targeted exercises helps dancers maintain good posture and execute complex movements more efficiently.

The other options, while beneficial for overall fitness or flexibility, do not specifically target the core in the same way. High-intensity cardio focuses more on cardiovascular fitness and endurance rather than specifically building core muscles. Stretching daily improves flexibility but does not contribute significantly to core strength. Practicing isolation techniques can enhance motor control and coordination but does not directly engage the core muscles effectively. Therefore, the choice that rightly emphasizes specific strengthening of the core is through exercises like sit-ups.