What characterizes phase 3 of biomechanical changes?

Phase 3 of biomechanical changes is characterized by motion dysfunction and possible misalignment. This phase indicates a progression in the dysfunction of the musculoskeletal system, where significant alterations in the biomechanics of the joints and surrounding tissues are observed.

At this stage, there is a considerable impact on the normal range of motion, leading to restrictions and compensatory patterns that may develop over time. As tissues adapt to the compromised movement, they may become more fibrotic or develop abnormalities in structure that further limit function.

The other choices, while they could reflect various conditions related to biomechanical issues, do not specifically encompass the core characteristics of phase 3. Chronic tissue defects, major bone and joint changes, and the beginning of ankylosis suggest different stages or types of changes that can occur but do not fully capture the essence of the motion dysfunction and misalignment central to this specific phase.