Kinesiology Chapter 6

Kinesiology Chapter 6 - Chapter 6: The Upper Extremity: The...

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Unformatted text preview: Chapter 6: The Upper Extremity: The Elbow, Forearm, Wrist and Hand Elbow, The Elbow: Three Joints: See Figure Humero-radial Humero-ulnar Proximal Radio-ulnar Movements of these 3 joints: ?? CLOSE AND LOOSE PACK POSITIONS POSITIONS JOINT CLOSE-PACK LOOSE-PACK HUMEROULNAR ELBOW EXT & ELBOW SUPINATION SUPINATION 70 DEG ELBOW FLEX, 70 10 DEG SUPINATION 10 HUMERORADIAL ELBOW FLEX 90 MIDPRONATION 70 DEG ELBOW FLEX, 70 SUPINAT SUPINAT PROXIMAL PROXIMAL RADIOULNAR RADIOULNAR FULL PRONATION 70 DEG ELBOW FLEX, 70 35 DEG SUPINATION 35 DISTAL RADIOULNAR FULL SUPINATION 10 DEGREES OF 10 SUPINATION SUPINATION CONCAVE AND CONVEX MOVEMENTS MOVEMENTS HUMERO-ULNAR: FLEX-ANTERIOR; HUMERO-ULNAR: EXTENSION-POSTERIOR HUMERO-RADIAL: FLEX-ANTERIOR; HUMERO-RADIAL: EXTENSION-POSTERIOR; PRONATIONEXTENSION-POSTERIOR; MEDIAL/POSTERIOR; SUPINATIONLATERAL/ANTERIOR PROXIMAL RADIOULNAR: SUPINATIONANTERIOR; PRONATION: POSTERIOR DISTAL RADIOULNAR: SUPINATIONPOSTERIOR GLIDE OF RADIUS ON ULNA; POSTERIOR PRONATION-ANTERIOR GLIDE OF RADIUS ON ULNA ULNA Functions of Muscles: Functions Biceps: flexes and supinates Biceps: simultaneously; active all movements when supinated but when forearm is pronated, biceps not active unless resistance applied; not active during slow supination; class assessment; how many joints does this muscle cross and what are they? what Brachialis: flexes elbow under all conditions conditions BR: active in quick movements, active with BR: resisted elbow flexion resisted Pronator Teres: pronater and elbow flexor Pronator against resistance against Triceps: what are the two actions of this Triceps: muscle? muscle? Supinator: palpation of the radial head: see Supinator: figure figure Active Insufficiency? What is this? What position of the biceps needs to be to be maximum active insufficient? The Triceps? active Passive Insufficiency? What is an Passive example of this? example Hip flexion with knee straight vs knee Hip flexed flexed Passive insufficiency Passive length of a muscle results in an inability of the length multi-joint muscle to allow full ROM at both, or all, joints simultaneously. Limits agonist from moving the joints through full range. Ex hamstrings may be passive insufficient Ex when person actively and simultaneously flexes hip and extends knee. Active insufficiency Active the tension a muscle develops depends, in part, the on its length. If the muscle is significantly shortened or lengthened, it will not be able to develop as much tension as it will near middevelop length and is said to be actively insufficient. length actively Ex: try to flex fingers when wrist is in full Ex: flexion. Chapter 6 - The Wrist and Hand Chapter Carpals: Carpals: Proximal Row: scaphoid, lunate, triquetral, pisiform triquetral, Distal Row: Trapezium, trapezoid, Distal capitate, hamate capitate, PALPATION PALPATION LISTER’S TUBERCLE Palpation of the Lunate: PASSIVELY Palpation FLEX THE WRIST FLEX PALPATION OF THE CAPITATE: FIRST PALPATION DEPRESSION AFTER THE LUNATE DEPRESSION SCAPHOID: DISTAL TO RADIAL SCAPHOID: STYLOID PROCESS; UD AND RD STYLOID PISIFORM: FCU Movements of the wrist and thumb: Movements of the wrist and thumb: what are they? Concave vs convex rule of the wrist? What movement is more RD or UD? Why? Why? Arches of the Hand: see Figure Three Arches arches: arches: Proximal arch Distal transverse arch Longitudinal arch Distal is more mobile Proximal is mostly fixed Proximal Arches allow for flattening or cupping of the palm to grab objects of Flexion mostly occurs at the midcarpal Flexion joint (60%) joint Extension occurs mostly at the Extension radiocarpal joint (67%) radiocarpal Radial/Ulnar deviation the distal carpal Radial/Ulnar rows go in same direction as rays while the proximal row goes in the opposite direction direction Functional Wrist Motion Most activities performed with wrist slightly flexed or wrist extension flexed Loss of wrist motion didn’t Loss significantly impede loss of ADL ability ability Interaction of Wrist and Hand Motion Slight wrist extension improves strength of wrist flexors and vice versa strength Grip strength is related to the wrist Grip being in slight extension and UD being Grip Types: Power vs Precision: Figure 6-30 6-30 PRECISION: USE OF THE THUMB WITH PRECISION: ONE OR TWO FINGERS POWER GRIP: FLEXION OF ALL POWER FINGERS WITH THUMB STABILIZING FINGERS CYLINDRICAL: GOLF SPHERICAL: BASKETBALL AND HOLDING SPHERICAL: BASEBALL BASEBALL HOOK: HOLDING RINGS Common Pathology: Common Carpal Tunnel Syndrome: 2 Special Carpal tests tests Ulnar Nerve Entrapment: Ulnar 2 locations? Epicondylitis: 2 types Epicondylitis: Elbow Fracture Colle’s Fracture VS SMITH Colle’s FRACTURE: fracture of distal radius from what? from SMITH VS COLLES SMITH COLLE’S: DORSAL DISPLACEMENT SMITH: VOLAR DISPLACEMENT ...
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This note was uploaded on 01/23/2012 for the course EX SCI 377:303 taught by Professor Chrisd’andrea during the Fall '11 term at Rutgers.

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