Motor Development Milestones Flashcards
Prone
Lifts head to 45°
(asymmetrically, holds momentarily)
50%
0.5 m
Prone
Lifts head to 45°
(asymmetrically, holds momentarily)
90%
2m
Prone prop, (weight on hands, forearms, & chest; elbows behind shoulders)
50%
1.5
Prone prop, (weight on hands, forearms, & chest; elbows behind shoulders)
90%
3.
Extended arm support
(weight on hands, lower abdomen, & thighs)
50%
4.5
Extended arm support
(weight on hands, lower abdomen, & thighs)
90%
6
Rolling prone to supine without rotation
50%
6
Rolling prone to supine without rotation
90%
8.5
Reaching from forearm support
50%
5
Reaching from forearm support
90%
7
pivoting
50%
5.5
pivoting
90%
8
Rolling prone to supine with rotation
50%
7
Rolling prone to supine with rotation
90%
9.5
Reciprocal crawling (stomach touching floor) 50%
7.5
Reciprocal crawling (stomach touching floor) 90%
9.5
Reciprocal creeping (stomach off floor, mature posture of legs & trunk rotation) 50%
8.5
Reciprocal creeping (stomach off floor, mature posture of legs & trunk rotation) 90%
11
supine
Moves head towards midline
50%
birth
supine
Moves head towards midline
90%
0.5
Supine
brings hands to midline
50%
2.5
Supine
brings hands to midline
90%
4
supine
hands to feet
50%
4.5
supine
Hands to feet
90%
6
Rolling supine to prone without rotation
50%
5.5
Rolling supine to prone without rotation
90%
9
Rolling supine to prone with rotation
50%
6.5
Rolling supine to prone with rotation
90%
9
Sitting with propped arms (momentarily)
50%
2.5
Sitting with propped arms (momentarily)
90%
4.5
Pull to sit (chin tuck)
50%
3.5
Pull to sit (chin tuck)
90%
5
Sitting with arm support
50%
4.5
Sitting with arm support
90%
6
Sitting with arm support
50%
6
Sitting with arm support
90%
8
Reach with rotation in sitting
50%
7
Reach with rotation in sitting
90%
8
Get to sitting*
(from supine or prone)
50%
8.4
Get to sitting*
(from supine or prone)
90%
9.9
Sitting to prone
50%
8
Sitting to prone
90%
12
Sitting to four-point kneeling
50%
7.5
Sitting to four-point kneeling
90%
9.5
Supported standing (intermittently bears weight) 50%
birth
Supported standing (intermittently bears weight) 90%
1
Pulls to stand with support (external object-crib, chair)
50%
8
Pulls to stand with support (external object-crib, chair)
90%
9.5
Stand 2 seconds*
50%
10.2
Stand 2 seconds*
90%
11.6
Stand Alone (10 seconds or more)* 50%
11.5
Stand Alone (10 seconds or more)* 90%
13.7
Standing from modified squat
50%
11.5
Standing from modified squat
90%
14
Standing from quadruped position
50%
11.5
Standing from quadruped position
90%
15
Cruising without rotation
50%
9
Cruising without rotation
90%
13
Early stepping (5 independent steps) 50%
11
Early stepping (5 independent steps) 90%
13.5
Walks alone (main mode of mobility) 50%
11.5
Walks alone (main mode of mobility) 90%
14
walks backwards
50%
13.8
walks backwards
90%
16.6
runs
50%
15.8
Runs
90%
19.9
