Lab K (Answers)

Lab K (Answers) - Prehension Patterns Answer Key 1....

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Prehension Patterns Answer Key 1. Carrying the Ice Cream Tub – Hook Grip FINGERS Joint Static Phase Active Muscles MCPs Flexion FDP, FDS, FDM--DI, PI, & AbDM (with force) * PIPs Flexion FDP, FDS, DIPs Flexion FDP, THUMB CMC Extension EPL, EPB, AbPL (Snuff Box muscles) MCP Extension EPL, EPB IP Extension EPL 2. Scooping Ice Cream – Cylindrical Grip INDEX FINGER Joint Static Phase Active Muscles 2 nd , 3 rd th MCPs Flexion (and ABD/ADD depending on girth of object) FDS, FDP-- DI & PI (with force) * 5 th CMC Opposition ODM, AbDM, FDM 5 th MCP Flexion (and ABD/ADD depending on girth of object) FDM, AbDM, FDP, FDS, PI PIPs Flexion FDP, FDS DIPs Flexion FDP THUMB CMC Opposition OP, AbPB, FPB AdP, FPL (because IP is flexed) MCP Flexion FPB, FPL, AdP IP Flexion FPL * When using a forceful grasp your EDC often will contract to stabilize at the MCP just like the interossei have been doing. Check for yourself. You can feel it. OT 440 Summer 2010
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Prehension Patterns Answer Key 3. Pouring Chocolate Syrup – Lumbrical Grip FINGERS Joint Static Phase
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Lab K (Answers) - Prehension Patterns Answer Key 1....

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