Lippert ch.13 - Hand grips pg. 189-192
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| prehension | show 🗑
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| show | wrist slightly extended, MCP & PIP joints slightly flexed, thumb in opposition {most effective for strength & precision}
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| show | used for holding objects forcefully while being moved by more proximal joint muscles (often isometric)
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| show | aka: prehensile precision, used when object manipulation requires finer movement
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| show | holding a hammer or doorknob
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| examples of precision grips | show 🗑
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| show | all fingers flexed around the object, thumb wrapped around the object in opposite direction
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| show | holding hammer, racquet, or wheelbarrow handle, golf club, or screwdriver
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| spherical grip | show 🗑
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| examples of spherical grip | show 🗑
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| show | 2nd through 5th fingers flexed around object in hook like manner, thumb not usually involved (MCP extended, PIP & DIP joints flexed)
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| examples of a hook grip | show 🗑
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| pad-to-pad grip | show 🗑
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| pinch grip | show 🗑
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| show | a pad-to-pad grip that involves the thumb and 2 fingers (usually index & middle)
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| show | holding up a coin to look at 1 side
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| example of a 3-jaw-chuck grip | show 🗑
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| show | aka: pincer grip, tip of thumb is up against the tip of another digit
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| example of tip-to-tip grip | show 🗑
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| pad-to-side grip | show 🗑
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| example of pad-to-side grip | show 🗑
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| show | requires adduction of 2 fingers, thumb is not involved, week grip with little precision
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| example of side-to-side grip | show 🗑
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| show | aka. plate grip; MCP flexed, PIP & DIP joints extended, thumb opposes the fingers to hold the object horizontally
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| example of lumbrical grip | show 🗑
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jteich
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