Principles of Functional Exercise

RHOMBOID MAJOR

Joint Action performed by the scapula

1. Adduction


2. Downward rotation

For example it assists the trapezius when moving upper extremity to stabilize scapula

Origin: Thoracic Vertebrae (T2-T5) – Spinous Process

Insertion: Scapula – Medial border (below spine)

Common distortions due to tightness is a protracted Scapula

RHOMBOID MINOR

Joint Action performed by the scapula

1. Adduction


2. Downward rotation

For example it assists the middle trapezius when moving upper extremity to stabilize scapula

Origin: 1. Cervical Vertebrae (C7) – Spinous Processes

2. Thoracic Vertebrae (T1) – Spinous Processes

Insertion: Scapula – Medial Border (at level of the spine)

Common distortions caused by weakness is a protracted scapula

Erector Spinae

I. Iliocostalis – 1. Lumborum 2. Thoracis 3. Cervicis
II. Longissiums – 1. Thoracis 2. Cervicis 3. Capitis
III. Spinalis – 1. Thoracis 2. Cervicis 3. Capitis

Joint Action performed by Lumbar/Thoracic Spine

1. Extension (I,II,III)


2. Lateral flexion (I)


3. Rotation (I)