International Sports Sciences Association (ISSA) Trainer Practice Exam

Improper biomechanical motion between two vertebrae is referred to as what?

1. Dislocation

2. Subluxation

3. Substitution

4. Misalignment

The correct answer is: Subluxation

Subluxation refers to a partial dislocation or improper biomechanical motion between two vertebrae. It indicates that the vertebrae are not aligned correctly, which can interfere with normal movement and function of the spine. This term is used particularly in the context of chiropractic care and physical therapy to describe a condition where vertebrae lose their normal position or function without a complete dislocation occurring. In this context, subluxation can lead to pain, decreased mobility, and potentially long-term health issues if not addressed. Recognizing subluxation is important for practitioners as it helps identify areas of dysfunction in the spine that can be treated to restore proper function and alleviate symptoms. The other options describe different conditions but do not accurately capture the specifics of partial dislocations involving vertebrae as subluxation does. Dislocation implies a complete separation of a joint, which is more severe. Substitution generally refers to compensatory movements or practices, and misalignment could be a general term for a variety of situations not specifically indicating the partial nature of vertebral displacement. Therefore, subluxation is the most appropriate term for the described condition.