What Is Horizontal Flexion?

Refers to movement where the angle between two bones increases. Extension is otherwise known as straightening. Horizontal flexion: Refers to movement where the angle between two bones decreases and on the horizontal plane.

What is horizontal flexion example?

Horizontal flexion: this only happens at the shoulder joint and occurs in the transverse plane. When an arm is held out to the side parallel to the floor and then pulled across the chest, that would be horizontal flexion. Returning the arm out to the side keeping it parallel to the floor would be horizontal extension.

What is horizontal flexion joint movement?

Horizontal flexion occurs when the arm is pulled across the chest when it is parallel to the floor. Horizontal extension occurs when the arm is returned from the above position out to the side.

What muscle causes horizontal flexion?

The pectoralis major has the largest horizontal flexion moment arm with the humerus elevated 90 degrees, whereas the posterior deltoid and infraspinatus have the largest horizontal extension moment arms in this plane.

What is a horizontal adduction?

horizontal adduction (horizontal flexion) Movement of the arm or thigh in the transverse plane from a lateral position to an anterior position.

What is an example of horizontal abduction?

Horizonal abduction is the movement of the arms from horizontally across the body. Starting from a position where the arms are straight to the front (shoulders flexed at 90 degrees), moving in the transverse plane to end in a position where the arms are straight out to the side (flexed at 90 degrees).

What is horizontal extension movement?

Horizontal extension: Refers to movement where the angle between two bones increases and occurs on the horizontal plane.

What is horizontal abduction and adduction?

Horizontal abduction (arm behind torso; C) occurs early in the throwing motion, whereas horizontal adduction (arm in front of torso) occurs from the end of late cocking and beyond. Source publication. +4.

Is horizontal flexion the same as horizontal adduction?

Internal (medial) Rotation – Movement of the anterior side of a segment toward the mid-line of the body. Horizontal Adduction (flexion) – Horizontal motion that results in movement toward the midline. Horizontal Abduction (extension) – Horizontal motion that results in movement away from the midline.

What muscle raises arm over head?

What Is It? Your rotator cuff is made up of muscles and tendons that keep the ball (head) of your upper-arm bone (humerus) in your shoulder socket. It also helps you raise and rotate your arm.

Which muscles cause horizontal adduction in the shoulder?

Muscles that Horizontally Adduct the Shoulder

• Anterior Deltoid.
• Pectoralis Major.

What muscles help with horizontal abduction?

Muscles that Horizontally Abduct the Shoulder

• Posterior Deltoid.
• Middle Trapezius.
• Lower Trapezius.
• Infraspinatus.
• Middle Deltoid.
• Supraspinatus.
• Teres Minor.
• Rhomboid Major.

What does transverse abduction mean?

Shoulder Horizontal Abduction (Transverse Abduction or Horizontal Extension): Definition: Moving the upper arm laterally (outward) through a transverse (horizontal) plane, away from the sagittal plane (midline). (I.e. Moving the arms horizontally away from the chest.)

What is internal rotation?

In anatomy, internal rotation (also known as medial rotation) is an anatomical term referring to rotation towards the center of the body.

What is the difference between adduction and horizontal adduction?

How does “horizontal adduction” differ from just “adduction”? “Horizontal Adduction” is adduction ( bone moving closer to midline) in the horizontal plane. “Adduction” is a bone moving closer to the midline in the frontal plane.