sensorimotor development mobility and stability

Question 0

prone position 5-6 months

Answer 0

shifts weight on forearms and reaches forward
bears weight and shifts weight on extended arms
legs are closer together and thighs roll inward toward natural alignment
hips are flat on surface
equilibrium reactions are present

Question 1

prone position ages 0-2months

Answer 1

turns head side to side
lifts head momentarily 
bends hips with bottom in air
lifts head and sustains in midline
rotates head freely when up
able to bear weight on forearms
able to tuck chin and gaze at hands in forearm prop
attempts to shift weight on forearms, resulting in shoulder collapse

Question 2

prone position- 5-8 months

Answer 2

airplane posturing in prone position, chest and thighs lift off surface

Question 3

prone position 7-8 months

Answer 3

pivots in prone position, moves in prone position to sit

Question 4

prone position 9 months

Answer 4

begins to dislike prone position

Question 5

supine position 0-3 months

Answer 5

head held to one side, able to turn head to side to side

Question 6

supine 3-4 months

Answer 6

holds head in midline, chin is tucked and neck lengthens in back, legs come together, lower back flattens against the floor

Question 7

4-5 supine position

Answer 7

head lag is gone when pulled to sitting position, hands are together in space

Question 8

5-6 months supine position

Answer 8

lifts head independently, brings feet to mouth, brings hands to feet, able to reach to toy with one or both hands, hands are predominantly open

Question 9

7-8 months supine position

Answer 9

equilibrium reactions are present

Question 10

rolling position 3-4 months

Answer 10

rolls from prone position to side accidentally because of poor control of weight shift, rolls from supine position to side

Question 11

rolling position 5-6 months

Answer 11

rolls from prone to supine position, rolls from supine position to side with right and left leg performing independent movements, rolls with supine and prone position with right and left leg performing independent movements

Question 12

rolling position 6-14 months

Answer 12

rolls segmentally with roll initiated by the head, shoulder, or hips

Question 13

creeping position 7 months

Answer 13

crawls forward on belly

Question 14

creeping 7-10 months

Answer 14

reciprocal creep

Question 15

creeping 10-11 months

Answer 15

creeps on hand and feet

Question 16

creeping 11-12 months

Answer 16

creeps well

Question 17

sitting 0-3 months

Answer 17

head bobs in sitting, back is rounded, hips are apart, turned out and bent, head is steady, chin tucks, able to gaze at floor, sit with less support, hips are bent and shoulders are in front of hips

Question 18

5-6 months sitting

Answer 18

sits alone momentarily, increased extension in back, sits by propping forward on arms, wide base, leg are bent, periodic use of “high guard” position, protective responses present when falling to the front

Question 19

5-10 months sitting

Answer 19

sits alone steadily, initially with wide base of support, able to play with toys in sitting position

Question 20

6-11 months sitting

Answer 20

gets to sitting position from prone position

Question 21

7-8 months sitting

Answer 21

equilibrium reactions are present, able to rotate upper body while lower body remains stationary, protective responses are present when falling to the side

Question 22

8-10 months sitting

Answer 22

sits well without support, legs are closer, full upright position, knees straight, increased variety of sitting positions, including “w” sit and side and sit, difficult fine motor tasks may prompt return to wide base of support

Question 23

9-18 months sitting

Answer 23

rises from supine position by first rolling over to stomach then pushing up into four point position

Question 24

10-12 months sitting

Answer 24

protective extension backwards, first with bent elbows then straight elbows, able to move in and out of sitting position into other positions

Question 25

11-12 months sitting

Answer 25

trunk control and equilibrium responses are fully developed in sitting position, further increase in variety of positions possible.

Question 26

11-24 months+ sitting

Answer 26

rises from supine by first rolling to side then pushing up into sitting position

Question 27

0-3 months standing

Answer 27

when held in standing position, takes some weight on legs

Question 28

2-3 months standing

Answer 28

when held in standing position, legs may give way

Question 29

3-4 months standing

Answer 29

bears some weight on leg, but must be held proximally, head is up in midline, no chin tuck, pelvis and hips are behind shoulders, legs are apart and turned outward

Question 30

5-10 months standing

Answer 30

stands while holding onto furniture

Question 31

5-6 months standing

Answer 31

increased capability to bear weight, decreased support needed, may be held by arms or hands, legs are still spread apart and turned outward, bounces in standing position

Question 32

6-12 months standing position

Answer 32

pulls to standing position at furniture

Question 33

8-9 months standing

Answer 33

rotates trunk and lower extremities, lower extremities are more active in pulling to a standing position, pulls to a standing position by kneeling, then half kneeling

Question 34

9-13 months standing

Answer 34

pulls to standing position with legs only, no longer needs arms, stands alone momentarily

Question 35

12 months standing

Answer 35

equilibrium reactions are present in standing

Question 36

8 months walking

Answer 36

cruises sideways

Question 37

8-18 months walking

Answer 37

walks with 2 hands held

Question 38

9-10 months walking

Answer 38

cruises around furniture, turning slightly in intended direction

Question 39

9-17 months walking

Answer 39

takes independent steps, falls easily

Question 40

10-14 months walking

Answer 40

walking, stoops and recovers in play

Question 41

11 months walking

Answer 41

walks with one hand held, reaches out for furniture out of reach when cruising, cruises in either direction, no hesitation

Question 42

15 months walking

Answer 42

able to start and stop in walking

Question 43

18 months- walking

Answer 43

seldom falls, runs stiffly with eyes on ground

Question 44

0-1 months release

Answer 44

no release, grasp reflex is strong

Question 45

1-4 months release

Answer 45

involuntary release

Question 46

4 months- release

Answer 46

mutual fingering in midline

Question 47

4-8 months

Answer 47

transfers object from hand to hand

Question 48

5-6 months

Answer 48

two stage transfer, taking hand grasps before releasing hand lets go

Question 49

6-7 months release

Answer 49

one stage transfer, taking hand and releasing hand perform actions simultaneously

Question 50

7-9 months release

Answer 50

volitional release

Question 51

7-10 months release

Answer 51

presses down on surface to release

Question 52

8 months release

Answer 52

releases above a surface with wrist flexion

Question 53

9 months release

Answer 53

releases into a container with wrist straight

Question 54

10-14 months release

Answer 54

clumsy release into small container, hand rests on edge of container

Question 55

12-15 months release

Answer 55

precise, controlled release into small container with wrist extended