Which of the following is NOT a term associated with martial arts techniques?

The term "Ja Yu Dae Ryun," which translates to "free sparring" in Korean, is indeed associated with martial arts techniques. This type of sparring allows practitioners to apply their skills in a more dynamic and less structured environment compared to pre-arranged techniques.

In contrast, "Hu Bae" refers to a term commonly used in martial arts to denote a backward or retreating movement, which is essential during defensive techniques. "Kyuck Pa," meaning "breaking," is a term directly related to demonstrating power and technique through breaking boards or other materials. "Shim Kong," which can refer to the concept of mental concentration or focus within martial arts practice, is crucial for effective technique execution.

Thus, the correct choice stands out as free sparring is a regulated practice within martial arts rather than a specific technique itself. This distinction makes the answer appropriate in this context.