Gross Motor Milestone Statistics

Winders, P.C., P.T.
Gross motor skills in children with Down syndrome: A guide for parents and professionals, Appendix, p. 227-8.
 Reprinted with the permission of Woodbine House and Winders, P.C., P.T.
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Copyright © 1997 by Woodbine House, Inc.
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MOTOR MILESTONE   n    Avg   STD 
1. Rolls from back to stomach 63 7 2
2. Rolls from stomach to back 58 6 2
3. Hand to foot play 59 7 2
4. Sits 87 11 4
5. Pivots in stomach-lying 360 degress 72 10 3
6. Assumes quadruped 73 13 5
7. Moves from sitting to stomach-lying by moving to the side 70 13 5
8. Moves from sitting to quadruped by moving to the side 47 16 7
9. Moves from stomach-lying to sitting by moving to the side 22 17 7
10. Moves from quadruped to sitting 73 16 7
11. Pulls to kneel from sitting using a surface with an edge 47 15 4
12. Pulls to kneel from quadruped using a surface with an edge 60 16 5
13. Belly crawls 71 14 5
14. Creeps in quadruped 67 17 7
15. Bear walking 14 19 4
16. Pulls to stand from sitting on the floor 39 15 3
17. Pulls to stand from quadruped 64 17 6
18. Pulls to stand through half kneel 68 17 6
19. Moves from standing to sitting on the floor with knees bent 52 17 7
20. Cruises in one direction 67 18 6
21. Steps 10 feet with two-hand support 66 19 6
22. Stands without support for 10 seconds 46 21 5
23. Takes 2 independent steps 60 23 8
24. Walks 10 feet with a push toy 53 22 8
25. Walks 10 feet with one-hand support 57 23 8
26. Walks 15 feet without hand support 74 26 9
27. Climbs up a flight of stairs 56 20 8
28. Climbs down a flight of stairs 37 25 10
29. Climbs off the sofa with the seat cushion removed 59 20 7
30. Climbs off the sofa with the seat cushion in place 49 22 7
31. Moves from plantigrade to standing 70 24 9
32. Walks (fast walk) 100 feet in less than 25 seconds 38 37 12
33. Runs 100 feet in less than 15 seconds 20 52 11
34. Walks up a 4-inch curb without hand support 46 36 12
35. Walks down a 4-inch curb without hand support 46 35 12
36. Walks up an 8-inch curb without hand support 33 49 13
37. Walks down an 8-inch curb without hand support 38 47 12
38. Walks up stairs marking time holding the rail 57 39 9
39. Walks down stairs marking time holding the rail 50 40 10
40. Walks up stairs holding the rail alternating feet 18 56 10
41. Walks down stairs holding the rail alternating feet 5 81 21
42. Walks across an 8-foot-long, 7-inch-wide balance beam without hand support  40 38 9
43. Walks across an 8-foot-long, 4-inch-wide balance beam without hand support 8 64 25
44. Jumps 31 47 12
45. Rides a tricycle 15 feet 16 61 11
 
  Revised: May 13, 1999.