Which of the following is a component of flexibility training?

Static stretching is indeed a core component of flexibility training. This type of stretching involves gradually extending a muscle to its full range of motion and holding that position for a period of time. The primary aim of static stretching is to improve the flexibility of muscles and tendons, which can enhance overall mobility, reduce the risk of injury, and improve performance in various physical activities.

In contrast, muscular endurance, cardio-respiratory fitness, and body composition analysis do not specifically target flexibility. Muscular endurance refers to the ability of a muscle to sustain repeated contractions over time, cardio-respiratory fitness focuses on the efficiency of the heart, lungs, and muscles in using oxygen during physical activity, and body composition analysis evaluates the proportion of fat and non-fat mass in the body. While all of these aspects contribute to overall fitness, they do not directly relate to flexibility training as static stretching does.