systems development final (gross motor development by age) t2

4 different attachment styles

- secure (distress and need for comfort when returning)
- insecure-avoidant (little distress and no need for comfort)
- insecure-ambivalent (intense distress and cannot be comforted upon return)
- insecure-disorganized (bizarre behaviors)

neonate development

- physiologic flexion
- symmetric flexor tone
- no anti-gravity control

0-2 months (1)

- head lag in pull to sit

3 months (1)

forearm prop

4 months (2)

- rolls prone to supine
- head midline in pull to sit

5 months (3)

- prone on extended arms
- roll supine to prone
- prop sit

6 months (1)

sits independently

7 months (2)

- transition to sitting
- belly crawl

8-9 months (2)

- pull to stand
- quadruped

10-11 months (4)

- walks with 1 hand held
- cruise along furniture
- stands briefly without support
- quadruped creeping

12 months (1)

walks independently

1-1.5 years (3)

- walks on stairs with support
- throw ball
- creeps on stairs

1.5-2 years (4)

- emerging run
- jumps to clear floor
- kicks ball forward
- throws overhand and underhand

2-3 years (3)

- rides tricycle
- jumps down
- alternates feet going up stairs

3 years (2)

- hops on one foot
- true run

4 years (2)

- catches ball
- gallops

5 years (2)

- rides bicycle
- changes direction when running

6 years (1)

skip