flexed, turns head from side to side
neonatal period
legs more extended, holds chin up, turns head
1st month
raises head slightly farther
2nd month
lifts head & chest w/ arms extended, tonic neck posture
3rd month
– hands in midline, reaches & grasp objects
**BW doubles
4th month
– rolls over, pivot, crawls or creep-crawl (prone)
7th month
sit up alone w/o support, creeps/crawl
10th month
walks with 1 hand held
**BW triples, 1 ½ BL
12th month
walks alone, crawls upstairs
15th month
runs stiffly, walks up stairs w/ 1 hand held
18th month
runs well, walks up & down stairs 1 step @ a time
**½ adult ht
24th month
– goes upstairs alternating feet
**BW quadruples
30 months
rides tricycle; stands momentarily on 1 foot
**3 ft
3 yo
hops on 1 foot; throws ball overhand; uses scissors
**40lbs; 2BL, 40in
4 yo
skips
5 yo
BL formula for 2-12 yo
Age x 6 + 77
Upper:lower body ratio
Birth
3yo
7yo
Birth 1.7
3yo 1.3
7yo 1
BL formula 2-12 yo
Age x 6 + 77
Ht of 13 yo
3BL
Upper:Lower body ratio (birth,3,7 yo)
birth: 1.7
3yo: 1.3
7yo: 1
length of ... 0-3 mo: 3-6 mo: 6-9 mo: 9-12 mo: 1-3 yo: 4-6 yo:
length 0-3 mo: 3.5cm/mo 3-6 mo: 2cm/mo 6-9 mo: 1.5cm/mo 9-12 mo: 1.2cm/mo 1-3 yo: 1cm/mo 4-6 yo: 3cm/yr
HC of ... 0-3 mo: 3-6 mo: 6-9 mo: 9-12 mo: 1-3 yo: 4-6 yo:
HC 0-3 mo: 2cm/mo 3-6 mo: 1cm/mo 6-9 mo: 0.5cm/mo 9-12 mo: 0.5cm/mo 1-3 yo: 0.25cm/mo 4-6 yo: 1cm/yr
waterlowe formula for stunting
(actual HT/ ideal Ht for age) x 100 Normal >95% Mild 90-95% Moderate 85-89% Severe <85%
waterlowe formula for wasting
(actual WT/ ideal WT for Ht) x 100 Normal >90% Mild 80-90% Moderate 70-80% Severe <70%