Question

Do arthrokinematics differ from glenohumeral external rotation with the humerus in neutral versus the humerus in abducted to 90 degrees? Explain your answer.

Answer 1

Arthokinematics is referred to as the movement of joints. Angular movement of the bones in the human body that takes place due to the result of a combination of rolls, spins, and slide. This involves a rotatory movement in which a bone role on another. These are the angular movement of the bones in which the human body movement takes place due to spin and slide.
Arthokinematics is different from the glenohumeral external rotation with the humerus in the neutral with the humerus is abducted to 90° because of the joint form in the combination of humeral head and abduction. External rotation of humerus is relative to the degrees of stability and mobility. This helps to determine whether lower trapezius moves in the offered manner or the abduction. The primary motion of this joint also involves adduction,abduction, flexion, and extension. The loss of glenohumeral movement at 90 degrees of abduction represents internal rotation until the humeral head or scapula is moved in the external rotation.