NASM essentials of sports performance training
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NASM essentials of sports performance training


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complex and shoulder
INNERVATION
\u2022 Thoracodorsal nerve (C6-C8)
Shoulder Musculature
SERRATUS ANTERIOR
ORIGIN
\u2022 Ribs 4-12
INSERTION
\u2022 Medial border of the scapula
ISOLATED FUNCTION
Concentric Action
\u2022 Scapular protraction
INTEGRATED FUNCTION
Eccentric Action
\u2022 Scapular retraction
Isometric Action
\u2022 Stabilizes the scapula
INNERVATION
\u2022 Long thoracic nerve (C5-C7)
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INTRODUCTION TO HUMAN MOVEMENT SCIENCE 49
RHOMBOIDS
ORIGIN
\u2022 Spinous processes of C7-T5
INSERTION
\u2022 Medial border of the scapula
ISOLATED FUNCTION
Concentric Action
\u2022 Produces scapular retraction and downward rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Scapular protraction and upward rotation
Isometric Action
\u2022 Stabilizes the scapula
INNERVATION
\u2022 Dorsal scapular nerve (C4-C5)
LOWER TRAPEZIUS
ORIGIN
\u2022 Spinous processes of T6-T12
INSERTION
\u2022 Spine of the scapula
ISOLATED FUNCTION
Concentric Action
\u2022 Scapular depression
INTEGRATED FUNCTION
Eccentric Action
\u2022 Scapular elevation 
Isometric Action
\u2022 Stabilizes the scapula
INNERVATION
\u2022 Ventral rami C2-C4
MIDDLE TRAPEZIUS
ORIGIN
\u2022 Spinous processes of T1-T5
INSERTION
\u2022 Acromion process of the scapula; Superior aspect of the spine of the
scapula
ISOLATED FUNCTION
Concentric Action
\u2022 Scapular retraction
INTEGRATED FUNCTION
Eccentric Action
\u2022 Scapular protraction and elevation
Isometric Action
\u2022 Stabilizes scapula
INNERVATION
\u2022 Cranial nerve XI, ventral rami C2-C4
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50 CHAPTER 2
UPPER TRAPEZIUS
ORIGIN
\u2022 External occipital protuberance of the skull; Spinous process of C7
INSERTION
\u2022 Lateral third of the clavicle; Acromion process of the scapula
ISOLATED FUNCTION
Concentric Action
\u2022 Cervical extension, lateral flexion and rotation; scapular elevation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Cervical flexion, lateral flexion, rotation, scapular depression
Isometric Action
\u2022 Stabilizes the cervical spine and scapula, stabilizes the medial border
of the scapula creating a stable base for the prime movers during
scapular abduction and upward rotation
INNERVATION
\u2022 Cranial nerve XI, ventral rami C2-C4
LEVATOR SCAPULAE
ORIGIN
\u2022 Transverse processes of C1-C4
INSERTION
\u2022 Superior vertebral border of the scapulae 
ISOLATED FUNCTION
Concentric Action
\u2022 Cervical extension, lateral flexion and ipsilateral rotation when the
scapulae is anchored; Assists in elevation and downward rotation of
the scapulae
INTEGRATED FUNCTION
Eccentric Action
\u2022 Cervical flexion, contralateral cervical rotation, lateral flexion, scapular
depression and upward rotation when the neck is stabilized 
Isometric Action
\u2022 Stabilizes the cervical spine and scapulae
INNERVATION
\u2022 Cranial nerve XI, ventral rami C2-C4
PECTORALIS MAJOR
ORIGIN
\u2022 Anterior surface of the clavicle; Anterior surface of the sternum,
cartilage of ribs 1-7
INSERTION
\u2022 Greater tubercle of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder flexion (clavicular fibers), horizontal adduction and internal
rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder extension horizontal abduction and external rotation 
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Medial and lateral pectoral nerve (C5-C7)
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INTRODUCTION TO HUMAN MOVEMENT SCIENCE 51
PECTORALIS MINOR
ORIGIN
\u2022 Ribs 3-5 
INSERTION
\u2022 Coracoid process of the scapula
ISOLATED FUNCTION
Concentric Action
\u2022 Protracts the scapula
INTEGRATED FUNCTION
Eccentric Action
\u2022 Scapular retraction
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Medial pectoral nerve (C6-T1)
ANTERIOR DELTOID
ORIGIN
\u2022 Lateral third of the clavicle
INSERTION
\u2022 Deltoid tuberosity of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder flexion and internal rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder extension and external rotation
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Axillary nerve (C5-C6)
MEDIAL DELTOID
ORIGIN
\u2022 Acromion process of the scapula
INSERTION
\u2022 Deltoid tuberosity of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder abduction
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder adduction
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Axillary nerve (C5-C6)
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52 CHAPTER 2
POSTERIOR DELTOID
ORIGIN
\u2022 Spine of the scapula
INSERTION
\u2022 Deltoid tuberosity of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder extension and external rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder flexion and internal rotation
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Axillary nerve (C5-C6)
TERES MINOR
ORIGIN
\u2022 Lateral border of the scapula
INSERTION
\u2022 Greater tubercle of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder external rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder internal rotation
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Axillary nerve (C5-C6)
INFRASPINATUS
ORIGIN
\u2022 Infraspinous fossa of the scapula
INSERTION
\u2022 Middle facet of the greater tubercle of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder external rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder internal rotation
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Suprascapular nerve (C5-C6)
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INTRODUCTION TO HUMAN MOVEMENT SCIENCE 53
SUBSCAPULARIS
ORIGIN
\u2022 Subscapular fossa of the scapula
INSERTION
\u2022 Lesser tubercle of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder internal rotation
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder external rotation
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Upper and lower subscapular nerve (C5-C6)
SUPRASPINATUS
ORIGIN
\u2022 Supraspinous fossa of the scapula
INSERTION
\u2022 Superior facet of the greater tubercle of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Abduction of the arm
INTEGRATED FUNCTION
Eccentric Action
\u2022 Adduction of the arm
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Suprascapular nerve (C5-C6)
TERES MAJOR
ORIGIN
\u2022 Inferior angle of the scapula
INSERTION
\u2022 Lesser tubercle of the humerus
ISOLATED FUNCTION
Concentric Action
\u2022 Shoulder internal rotation, adduction and extension
INTEGRATED FUNCTION
Eccentric Action
\u2022 Shoulder external rotation, abduction and flexion 
Isometric Action
\u2022 Stabilizes the shoulder girdle
INNERVATION
\u2022 Subscapular nerve (C5-C6)
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54 CHAPTER 2
BRACHIALIS
ORIGIN
\u2022 Humerus
INSERTION
\u2022 Coronoid process of ulna
ISOLATED FUNCTION
Concentric Action
\u2022 Flexes elbow
INTEGRATED FUNCTION
Eccentric Action
\u2022 Elbow extension
Isometric Action
\u2022 Stabilizes the elbow
INNERVATION
\u2022 Musculocutaneous, radial nerve
BICEPS BRACHII
ORIGIN
\u2022 Short head: Corocoid process; Long head: Tubercle above glenoid cav-
ity on the humerus
INSERTION
\u2022 Radial tuberosity of the radius
ISOLATED FUNCTION
Concentric Action
\u2022 Elbow flexion, supination of the radioulnar joint, shoulder flexion
INTEGRATED FUNCTION
Eccentric Action
\u2022 Elbow extension, pronation of the radioulnar joint, shoulder extension 
Isometric Action
\u2022 Stabilizes the elbow and shoulder girdle
INNERVATION
\u2022 Axillary nerve
TRICEPS BRACHII
ORIGIN
\u2022 Long head: Infraglenoid tubercle of the scapula; Short head: Posterior
humerus; Medial head: posterior humerus
INSERTION
\u2022 Olecranon process of the ulna
ISOLATED FUNCTION
Concentric Action