Which of the following is a common warm-up exercise used in martial arts?

Dynamic stretching is a common warm-up exercise used in martial arts because it helps to prepare the muscles and joints for the physical demands of training or competition. This type of stretching involves continuous and controlled movements that gradually increase in range and speed, effectively increasing blood flow and flexibility. By incorporating dynamic movements, practitioners can enhance their mobility and reduce the risk of injury as they engage in more intense physical activities.

High-intensity interval training, while beneficial for conditioning, is generally not categorized as a traditional warm-up exercise. Instead, it involves periods of intense effort followed by rest or lower-intensity exercises, which would typically be performed after a proper warm-up.

Meditative breathing focuses on relaxation and mindfulness rather than physical preparation, making it less aligned with the physical needs of warming up for martial arts practice.

Competitive sparring is an advanced activity that occurs after a thorough warm-up and would not be appropriate as a warm-up exercise since it involves physical confrontation and requires the body to have already been prepared through earlier warm-up activities.