Term
| Individual finger mvmt controlled by M1 through... |
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Definition
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Term
| <3yo relies on larger mm to control pencil because... |
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Definition
| corticospinal tracts not fully myelinated until 3 yo |
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Term
| Primitive grasp for handwriting |
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Definition
immature, power-type grasp
full UE mvmt
<4 yo
forearm often off table |
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Term
| Types of primitive grasps for handwriting (5) |
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Definition
radial cross palmar
palmar supinate
digital pronate
brush
extended fingers |
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Term
| Transitional grasp for handwriting |
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Definition
typicall used between primitive & mature grasps
3-6 yo
mvmt still originates at shoulder/elbow
incr mvmt @ wrist/elbow c forearm on table
intrinsic mvmt NOT seen |
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Term
| Types of transitional grasps for handwriting (3) |
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Definition
static quadrupod
cross thumb grasp
static tripod grasp |
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Term
| Mature grasp for handwriting |
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Definition
dynamic wrist control
use of intrinsic & extrinsic hand mm
minimal mvmt of UE
typically 4-6 yo |
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Term
| Types of mature grasps for handwriting (4) |
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Definition
dynamic quadrupod
dynamic tripod
interdigital tripod
index grip |
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