How should a client with knee problems avoid discomfort during movements?

Keeping the knees flexed is the most effective way for a client with knee problems to avoid discomfort during movements. When the knees are flexed, they are in a more natural and biomechanically stable position, allowing for better shock absorption and reducing the stress on the joint. Flexing the knees distributes the forces more evenly across the joint, potentially alleviating pain and discomfort that may arise from locking the knee or putting it in a fully extended position.

This approach also encourages better alignment of the knee joint with the hip and ankle, which is crucial for maintaining overall joint health. Moreover, keeping the knees slightly bent can help in activating the muscles around the knee, providing additional support and stability during various movements.

The other options can lead to increased strain or discomfort. Locking the knees can result in joint compression and unnecessary pressure on the knee joint, while fully extending the knees may lead to hyperextension or additional strain. Twisting the knees while stationary can impose a risk of injury and exacerbate existing knee issues. Therefore, maintaining a flexed position is the safest and most beneficial choice for clients with knee concerns.