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Muscles that move the shoulder girdle and arms

Muscles that move the shoulder girdle and arms. Notes on the muscles when used in yoga practice. Muscles of shoulder girdle Classified into three groups according to location of attachments . FROM AXIAL SKELETON TO SHOULDER GIRDLE (SCAPULA AND CLAVICLE) Serratus anterior Upper trapezius

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Muscles that move the shoulder girdle and arms

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  1. Muscles that move the shoulder girdle and arms Notes on the muscles when used in yoga practice Rosie Evans 18 June 2011

  2. Muscles of shoulder girdleClassified into three groups according to location of attachments • FROM AXIAL SKELETON TO SHOULDER GIRDLE (SCAPULA AND CLAVICLE) • Serratus anterior • Upper trapezius • Middle trapezius • Lower trapezius • Rhomboideus major and minor • Pectoralis minor • Levator scapulae • FROM SCAPULA AND CLAVICLE TO HUMERUS • Deltoid • "Rotator cuff" • supraspinatus • infraspinatus • teres minor • subscapularis • Teres major • Coracobrachialis • Biceps brachii (long head) • Triceps brachii (long head) • FROM AXIAL SKELETON TO HUMERUS • Pectoralis major • Latissimus dorsi Rosie Evans 18 June 2011

  3. Anterior and Posterior View Rosie Evans 18 June 2011

  4. Muscles of shoulder girdle • Deltoid • Raises arm from body at front side and rear • Pectoralis Minor • Moves shoulder blade • Pectoralis Major • Draws arm towards body and rotates upper arm inwards • Trapezius • rotates and retracts shoulder blade Rosie Evans 18 June 2011

  5. Muscles of shoulder girdle • Rhomboids : Minor and Major • Help retract shoulder blades and return them to rest position • Serratus Anterior • Rotates and extends shoulder blades • Rotator Cuff • Supraspinatus • Infraspinatus • Teres Minor • Subscapularis Rosie Evans 18 June 2011

  6. Muscles of Upper Arm • Brachialis • Brings forearm towards shoulder • Biceps brachii • Flexes forearm at elbow and turns palm upwards • Long head of triceps • Extends forearm at elbow and straightens arm • Medial head of triceps • Extends forearm at elbow and straightens arm Rosie Evans 18 June 2011

  7. Deltoideus • Composed of three parts: anterior (flexes and rotates humerus) middle (abducts humerus at shoulder) and posterior (extends and laterally rotates humerus) • Raises arm away from body to front, side and rear • Originates in clavicle • Active in waving and reaching • Yoga asana : • Utkatasana • Natarajasana • Virabhadrasana 1 • Bakasana Rosie Evans 18 June 2011

  8. Pectoralis Minor • Flat muscle concealed by pectoralis major and also forms anterior wall of axilla • Draws scapula forward and downward. • Accessory muscle of inspiration • Tightness restricts expansion of chest • Yoga asana : • Virabhadrasana 1 Rosie Evans 18 June 2011

  9. Pectoralis Major • Forms anterior wall of axilla • Originates in clavicular head • Adducts and medially rotates humerus • Brings arm forward and across body • Tightness causes rounding of back and restricts chest open • Yoga asana : • Tiryaka Tadasana • Adho Mukha Svanasana with forearms down • Dhanurasana • Virabhadrasana 1 Rosie Evans 18 June 2011

  10. Trapezius • Originates at base of skull and includes all thoracic vertebrae • Elevates the shoulder girdle • Helps prevent depression of shoulder girdle when weight carrying • Yoga asana : • Parsvottanasana (with arms) • Garudasana • Gomukasana • Marjaryasana (Cat) • Bakasana Rosie Evans 18 June 2011

  11. Serratus Anterior • Forms medial wall of axilla along upper five ribs • Protracts scapula into chest wall. • Rotates scapula for abduction and flexion of arm • Yoga asana : • Utkatasana • Garudasana • Utthita Parsvakonasana • Bakasana • Adho Mukha Svanasana • Salabasana Rosie Evans 18 June 2011

  12. Rhomboids : Major and Minor • The Rhomboids are active in poses that require adduction, elevation, or downward rotation of the scapula • They will work eccentrically to control scapular abduction (protraction), depression, and upward rotation • Yoga asana : • Gomukhasana (arms) • Ardha Matsyendrasana • Parivritti Baddah Parsvakonasana • Salamba Sarvangasana Rosie Evans 18 June 2011

  13. Rotator Cuff • Consists of four important main muscles : SITS • Supraspinatus, Infraspinatus, Teres minor, Subscapularis • Stabilises the shoulder • Elevates and rotates the arm • Each muscle originates on the shoulder blade, or scapula, and inserts on the arm bone, or humerus • Yoga asana : • Vrksasana arms (supraspinatus) • Urdhva Mukha Svanasana (infraspinatus) • Natarajasana (teres minor) • Gomukhasana (subscapularis) Rosie Evans 18 June 2011

  14. Biceps Brachii • Operates over three joints • Shoulder • Elbow • Wrist • Flexes elbow joint and supinates forearm • Function : picking up objects • Yoga asana : • Bakasana • Trikonasana Rosie Evans 18 June 2011

  15. Aims and Objectives • To develop upper body strength • To develop flexibility in the upper body • To improve posture and therefore breathing • To work with awareness, care and control • To encourage students to develop their range of movement safely • To create awareness of the physical body • To explore within the range of movement • To maintain a full range of movement • To engage the mind, body and breath Rosie Evans 18 June 2011

  16. Rosie Evans 18 June 2011

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