Prone
Lift head 45 deg (asymmetrically, holds momentarily)
Prone
0.5
Stand
Supported standing
(intermittently bears weight)
Stand
BIrth
Prone prop
weight on hands and forearms, and chest; elbows behind shoulders
Prone
1.5m
Supine
brings hands to midline
Supine
2.5m
Sit
Pull to sit (chin tuck)
Sit
3.5m
Prone
Extended arm support (weight on hands, lower abdomen, and thighs)
Prone
4.5m
Sit
Sitting with arm support
Sit
4.5m
Supine
Rolling supine to prone without rotation
Supine
5.5m
Sit
Sitting without arm support
Sit
6m
Prone
Rolling prone to supine without rotation
Prone
6m
Supine
Rolling supine to prone with rotation.
Supine
6.5m
Prone
rolling prone to supine with rotation
Prone
7m
Prone Reciprocal crawling (stomach touching floor)
Prone
7.5m
Sit
Get to sitting (from supine or prone)
Sit
8.4m
Prone Reciprocal creeping (stomach off floor, mature posture of legs and trunk rotation)
Prone
8.5
Pulls to stand with support (external object-crib, chair)
Stand
8m
Walk/Run
Cruising without rotation.
Walk/Run
9m
Walk/Run Early Stepping (5 independent steps)
Walk/Run
11m
Walks alone (main mode of mobility)
Walk/Run
11.5
Stand Alone (10 sec or more)
Stand
11.5
Curbs/Stairs
Walk up steps
Curbs/Stairs
16.6m
Curbs/Stairs
Walks up full flight of stairs with no difficulty
Walks down full flight of stairs with no difficulty
Curbs/Stairs
2.0-2.5y
Jump/Hop/Skip Jump up (both feet off floor)
Jump/Hop/Skip
23.8m
Jump/Hop/Skip
Hops (on 1 foot, 2 or more times in a row)
Jump/Hop/Skip
3.5y
