What is transverse shoulder flexion?
Shoulder transverse flexion is a medial movement at the shoulder (glenohumeral) joint in a horizontal plane, resulting in a decrease of angle (flexion) – moving the upper arm towards and across the chest with the elbow facing out to the side – see Figure 1.
What muscles do extension of the shoulder?
For a shoulder extension, your body uses the latissimus dorsi, teres major and minor and posterior deltoid muscles. These muscles are important for lifting yourself up and having a good range of motion in your shoulders to improve mobility.
What is shoulder transverse adduction?
Shoulder transverse adduction is a medial movement at the shoulder (glenohumeral) joint in a horizontal plane – moving the upper arm towards and across the chest with the back of the arm facing down – see Figure 1. Shoulder Transverse Adduction.
What is a shoulder extension?
Shoulder extension, on the other hand, refers to the position you make when you move your arm and stick them out on your back. The muscles affected by these movements are the coracobrachialis, pectoralis major, and the anterior deltoid.
What is the prime mover for shoulder extension?
Muscles that have their origins in the posterior (back of) shoulder joint extend the arm. These muscles include the latissimus dorsi and posterior fibres of the deltoids, with both acting as the prime mover. Teres major also assists this action. Pectoralis major and latissimus dorsi act as antagonists.
What is shoulder horizontal extension?
Horizontal extension: this only happens at the shoulder joint and occurs in the transverse plane. Returning the arm out to the side keeping it parallel to the floor would be horizontal extension. Taking the arm backwards beyond 180º would be horizontal hyperextension.
What limits shoulder extension?
Anterior portion limits extension while the posterior portion limits flexion. Both divisions limit inferior and posterior translation of the humeral head.
What is Circumduction of the shoulder?
Circumduction is the orderly combination of shoulder movements so that the hand traces a circle and the arm traces a cone. In order it is produced by shoulder flexion, abduction, extension and abduction (or the reverse).
What is an example of hyperextension?
A hyperextension injury occurs when a joint is moved past its normal angle of extension. For example, this may happen to the elbow during sports, often when “punching air” or practicing one’s swing in tennis. The injury known as “tennis elbow” is, in fact, a form of hyperextension injury.