Which joints are identified as Mobility Joints?

The thoracic spine, hips, and ankle are classified as mobility joints because they are designed primarily for movement and flexibility. These joints allow for a wide range of motion, which is essential for dynamic activities and overall functional performance.

The thoracic spine plays a crucial role in upper body mobility, facilitating rotational movements and flexion/extension in the torso which is important for various physical activities. The hips are major load-bearing joints that provide significant mobility needed for actions such as squatting, running, and lateral movements. Similarly, the ankle joint contributes to mobility by allowing for dorsiflexion and plantarflexion, essential for walking, running, and maintaining balance.

In contrast, the other combinations of joints listed in the choices include some joints that are primarily involved in stability or support rather than mobility. For instance, shoulders do have mobility but are part of a more complex structure that can also emphasize stability. Knees are mostly hinge-type joints, serving a more stabilizing function during load-bearing activities.