Napier 1956

Question 1

Answer 1

power grip

Question 2

Answer 2

precision grip

Question 3

Answer 3

writing position

Question 4

Answer 4

hammer position

Question 5

Answer 5

right hand in power grip when lid is started

Question 6

Answer 6

right hand in precision when lid is loose

Question 7

Answer 7

right hand in precision and left hand is in power grip

Question 8

Answer 8

different power grip phases

Question 9

Answer 9

different precision grip phases

Question 10

Answer 10

power grip where precision plays part

Question 11

Answer 11

Thumb is in power and B shows the translation of the rod. C shows the rotations

Question 12

Answer 12

pin hammer

Question 13

Answer 13

warrington hammer

Question 14

Answer 14

cross pein hammer

Question 15

Answer 15

ball pein hammer

Question 16

Answer 16

coal hammer grip

Question 17

Answer 17

bunched fist

Question 18

Answer 18

combined grip

Question 19

Answer 19

combined grip but index/thumb are in precision grip and rest of fingers are in power grip

Question 20

What is a prehensile grip?

Answer 20

Movements in which an object is seized and held partly or wholly on the hand

Question 21

What is a non-prehensile grip?

Answer 21

Movements where no grasping or seizing is involved but where options can be manipulated by pushing or lifting by hand or fingers

Question 22

What are the five summary points?

Answer 22

1. prehensile movement of the hand are analyzed anatomical and functionally
2. hand movements consist of precision and power grips
3. prec grip is object pinched between flexor and thumb
4. power grip is object being clamped between flexed fingers and palm and pressure is by thumb lying more or less on palm
5. power and prec cover whole range of prehensile human hand