Grasp progression

Question 1

Writing grasp progression

Answer 1

Fisted - 1-2
Distal pronate - 2-3
Static tripod - 3-4
Dynamic tripod - 4.5 - 6

Question 2

Exploratory - Reach

Answer 2

1-3M
Swipes at objects
Cannot combine reach and grasp

Question 3

Grasping - 2M

Answer 3

Palmar grasp after adult places item in hand

Question 4

Exploratory - Grasp

Answer 4

3-5M
First voluntary grasp b/t 2-3M
Grasp w/ fingers, not thumb
Release is random, not voluntary
Grasp inefficient
Infant cannot complete in-hand manipulation

Question 5

Perceptual learning/transitional stage- reach

Answer 5

3-6M
Reach becomes more accurate
Reach to midline
6M - reaches w/ two hands and grasps

Question 6

Grasp => 5-6M

Answer 6

Grasps smaller objects w/ whole hand OR ulnar side of hand

Question 7

Skill achievement/adaptability & flexibility - Reach

Answer 7

6-9M
Reaches w/ 1 or 2 hands
Accurate & direct reach
Can change reach direction midstream

8-9M
Reach in all directions
Easily combine reach & grasp
Carries objects through space

Question 8

Grasp -> 8-9M

Answer 8

Small items w/ raking motion

Question 8

Grasp - 7M

Answer 8

Starts to grab w/ radial side of hand

Question 9

Grasp -> 11M

Answer 9

Pincer grasp develops, using pad of index finger & thumb

Question 10

Perceptual learning/transitional stage - Grasp

Answer 10

6-12M
Radial palmar & radial digital grasp emerges;
Active thumb use
No in-hand manipulation
Cannot use precision grasp
Voluntary grasp @ 6-7M
Can transfer hand to hand
Oral exploration

Question 11

Grasp 12-18M

Answer 11

Whole hand to p/u writing instrument

Question 12

Skill achievement/adaptability & flexibility

Answer 12

12M - 2 y/o
Pincer grasp
Precise by 12M
18M - precision release
2 y/o - dynamic grasp
use object while holding it
blended grasp development
In-hand manipulation

Question 13

Grasp - 2-3 y/o

Answer 13

Extended fingertips to hold writing utensil

Question 14

Grasp 4-5 y/o

Answer 14

Tripod grasp pattern