What does 'working in the joint' imply about the knee folds exercise?

The phrase 'working in the joint' concerning the knee folds exercise refers specifically to the concept of managing the hip joint's movement independently from the pelvis. In this context, the exercise aims to promote proprioception and control over the limb movement without compensatory motion from the pelvis or lower back.

During knee folds, maintaining proper alignment and control allows the practitioner to engage the core and stabilize the pelvis while the legs are moving. This separation is crucial for targeting the hip flexors effectively and ensuring that the movement does not put unnecessary strain on the lower back or pelvis. By doing this, participants can increase their awareness of joint mechanics and develop better control throughout the lower body.

Other options relate to different aspects of movement and body mechanics. Full leg extension without restriction might imply a lack of control or stabilization. Synchronizing arm and leg movement emphasizes coordination rather than the specific function of the hip joint. Strengthening the shoulder joint focuses on a completely different area of the body unrelated to the knee folds exercise's intention and mechanics.