Why is the 90/90 test significant in assessing posture?

The 90/90 test is significant in assessing posture primarily because it evaluates overhead mobility and stance. This test requires the participant to maintain a specific position that mimics the setup for certain athletic movements, such as throwing or swinging. By using a 90-degree angle at both the hips and knees, it helps to highlight the relationship between the upper and lower body, ensuring they work well together in a stable posture.

When assessing posture, understanding overhead mobility is crucial since it indicates how well the arms and shoulders can move without compromising the integrity of the spine and overall body alignment. This is particularly important in sports, where good posture not only enhances performance but also prevents injury.

The stance is also important, as it allows the evaluator to assess how the feet are positioned and how that influences balance and stability during movement. A test that successfully evaluates these aspects offers valuable insights into a player’s functional readiness and potential limitations in their swing or athletic performance.