What does the term 'restriction' refer to in spinal diagnosis?

The term 'restriction' in spinal diagnosis pertains to the specific motion that is limited or inhibited when evaluating the movement of a vertebra in relation to the one adjacent to it. This indicates that the vertebra in question cannot move as freely as it should, potentially leading to dysfunction and contributing to various musculoskeletal issues.

Understanding this concept is crucial for osteopathic practitioners, as identifying restrictions allows for targeted treatment strategies, such as adjusting or mobilizing the affected vertebrae to restore normal function and alleviate discomfort.

The other options, while related to spinal function and health, do not accurately define 'restriction'. The ability of a vertebra to move independently describes normal motion, the alignment of vertebrae refers to their overall positioning rather than specific limitations, and the degree of muscle tension pertains to the soft tissue elements surrounding the spine rather than the restriction of vertebral motion itself.