Which of the following is a common contraindication for mobilization techniques?

The correct choice highlights that a recent fracture or instability in the joint is a common contraindication for mobilization techniques. When a joint has recently suffered a fracture or is unstable, applying mobilization can exacerbate the injury or lead to further complications. This is due to the potential for increased stress on the already compromised structures, which can cause pain, impede healing, or even result in a re-fracture.

In contrast, while weakness in a patient might affect their response to mobilization, it does not inherently contraindicate the use of these techniques. Good range of motion generally indicates that mobilization might be unnecessary rather than contraindicated. Allergic reactions to therapies can vary widely and would typically apply to specific modalities or materials used during treatment rather than mobility itself, making it less relevant to mobilization contraindications. Thus, the focus on recent fractures and joint instability as contraindications directly addresses the need to ensure patient safety during physical therapy interventions.