Hand: Grips Flashcards
1
Q
What are the broad categories of grips?
A
- prehension/precision grips
- power grips
2
Q
What is characteristic of prehension grips?
A
wrist doesn’t come into play (Don’t need to think about wrist position for power)
3
Q
What are the prehension grips?
A
- 3 point chuck
- key pinch
- tip to tip
4
Q
What are the power grips?
A
- hook/pail
- cylinder
- fist
- spherical
5
Q
hook/pail
A
- carrying a suitcase
- doesn’t require thumb
6
Q
cylinder
A
drinking a beer
7
Q
fist
A
- tighter version of a cylinder
- thumb in contact with phalanges
8
Q
spherical
A
doorknob
9
Q
Why do we care about grips?
A
Allows us to combine power and prehension to:
- carry things
- reach and grab
- release objects
