ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Upper Extremities Overview

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

• Bones

• Ligaments

• Muscles

• Tendons

• Nerves

Upper Extremities

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Muscles and Tendons

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Model of the Arm

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Nerves

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

• Work-Related Musculoskeletal Disorders (WMSDs)

• Repetitive Motion Injury

• Cumulative Trauma Disorders

Different Name, Same Problem

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Tendon Disorders• Tendonitis• Tenosynovitis• Lateral Epicondylitis• Medial Epicondylitis• Ganglion Cysts

Upper Extremity WMSDs

Nerve Disorders• Nerve entrapments• Carpel Tunnel

Syndrome

Neurovascular Disorder• Hand Arm Vibration

Syndrome• Thoracic Outlet

Syndrome

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Tenosynovitis• Swelling of the

synovial sheath

• Pain and swelling

Tendonitis• Tendon becomes inflamed

• Pain, swelling, weakness, tenderness

Tendon Disorders

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Tendons/Tendon Sheaths

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Ganglion Cyst• Synovial sheath swells

and holds fluid

• Often seen in the wrist as a bump

Epicondylitis (lateral and medial)• Unsheathed tendons become irritated

• Pain that extends from elbow through forearm

Tendon Disorders

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Tendon Disorders

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Carpel tunnel syndrome• Swelling of the tendons in the

wrist area that place pressure on the median nerve

• Symptoms include pain, numbness, and tingling of the hand (thumb and first 3 digits)

Nerve Entrapments

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

CARPALBONES

EXTENSOR TENDONS

PALMAR BASE LIGAMENTS

RADIAL ARTERY

FLEXORPOLLICIS LONGUS

FLEXORCARPI RADIALIS

TRANSVERSECARPAL LIGAMENT

MEDIANNERVEPALM

ULNARARTERYFLUXOR

CARPI ULNARIS

ULNAR NERVE

S2-5 = SUBLIMISFLEXOR TENDONS

P2-5 = PROFUNDUSFLEXOR TENDONS

Carpal Tunnel

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Hotdogs and Cream Puff Tire and Hose

Carpal Tunnel

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Thoracic Outlet Syndrome• Compression of the nerves and blood vessels

of the neck and shoulder

• Symptoms like CTS extending up the arm

Hand Arm Vibration Syndrome• Disorder of the small vessels and nerves of

the fingers and hand

• Results from vibrating hand tools

• Localized blanching at the fingertips with numbness on exposure to cold or vibration

Neurovascular Disorders

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

Thoracic Outlet Syndrome

ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW

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