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2 Month Old Baby Typical & Atypical Development Side by Side



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two-month-old typical atypical motor

development side-by-side in this video

you will see a typically developing baby

and an a typically developing baby in

eight different physicians use this to

help recognize early motor delays please

remember to adjust for prematurity

position one supine head the

typically-developing baby on the left

maintains his head in midline for brief

periods while the a typically developing

baby on the right has a more

predominance of head turning to one side

and strong 8tn are asymmetrical tonic

neck reflex visual tracking notice the

typically developing baby locates and

visually tracks objects horizontally the

a typically developing baby can locate

the object but has difficulty visually

tracking and only tracks objects to

midline extremities see how the infant

on the Left begins to show extremity

anti-gravity movements and reciprocal

kicking while the a typically developing

baby on the right has long periods of

inactivity few anti-gravity movements

and less reciprocal kicking positioned

to sideline transition the baby on the

Left shows lateral head writing and

follow-through into rolling with head

lifted into prone baby on the right can

remain in sideline without rolling by

flexing his hips and knees increasing

his base of support trunk control the

baby on the left is able to switch from

using abdominals during the roll to neck

and back extensors as he completes the

roll the baby on the right is in a

position that doesn't require him to

work as hard against gravity so in this

position he looks more symmetrical

movement in this position the

typically-developing baby demonstrates

an integration of major muscle groups

the a typically developing baby on the

right looks more confident in this

position therefore it is important to

observe in more than one position

position three

crohn head lifting the

typically-developing baby is able to

lift 45 degrees while extending through

the upper thoracic spine baby on the

right still has a newborn posture he

shifts his weight forward towards his

head making it harder to lift head and

upper trunk baby on the left's upper

body is free to lift his head and upper

trunk of the surface note that the

changes in leg position on the a

typically developing baby allow him to

begin developing head and trunk control

hip position watch baby on the left

moving on to flexed into flexed and

abducted position while baby on the

right remains and flexed in AB ducted

posture movement notice the baby on the

left is doing little weight shifts and

is able to counteract with his

abdominals to balance while increasing

shoulder girdle strength baby on the

right strategy is to extend and push up

on his legs it doesn't a system in

lifting his head and pushing up on his

arms position for pull to sit head the

typically-developing baby demonstrates

head leg expected at this age he

sustains midline head control when

upright the I typically developing baby

demonstrates head leg throughout the

maneuver and poor head control went

upright upright baby on the left is

upright he has good extension through

the cervical and upper thoracic spine

baby on the right has little activity in

the cervical spine and rounding of

thoracic and lumbar spine upper

extremities the typically-developing

baby uses shoulder elevation an elbow

flexion to assist in the maneuver the

atypical developing baby is not able to

use his shoulder girdle to stabilize

upper trunk during the maneuver position

5 sitting head baby on the left head is

aligned with his ear directly over his

shoulder baby on the right is

unable to achieve and sustained head

lifting in an upright position posture

the typically-developing baby has good

activity of the neck extensors he is

able to hold and sustain posture with

assistance the a typically-developing

baby needs more support to sustain a

sitting posture movement we don't see a

lot of head turning in this position for

the baby on the left but this is typical

of this aged baby on the rights arms are

inactive because he lacks shoulder

girdle strength position 6 horizontal

suspension anti gravity extension in

this position the typically developing

baby's muscles of the neck and trunk can

sustain this posture against gravity we

can see in this position the a

typically-developing baby is unable to

lift his head or activate his neck and

upper thoracic extensors extremities the

typically-developing baby recruits

muscles in the shoulder girdle to

augment the thoracic extension the a

typically-developing baby moves his arms

and legs to stabilize his trunk which is

a non-productive strategy position 7

protective extension tilting forward

when we tilt the typically-developing

baby forward towards the surface he

sustains and increases the head and neck

extension as the a typically-developing

baby on the right tips forward towards

the surface he is unable to lift his

head and extend his trunk progression

the typically-developing baby on the

left is on track to demonstrating

fundamental control in this position by

six months note that if the a

typically-developing baby does not get

early therapy to develop head and trunk

strength it is unlikely he will do this

position by six months position 8

standing posture when placed in

supported standing we see the typically

developing baby has good vertical

alignment from head through trunk and

feet notice the a typically developing

baby on the right sustains pseudo

extension when provided maximum

port upper-body note that the

typically-developing baby uses shoulder

elevation and his upper extremities are

held close to his body to assist and

sustain this posture while the a

typically-developing baby has little or

no intermittent muscle activity to

maintain standing weight-bearing the

typically-developing baby sustains

weight on lower extremities with trunk

support while the a typically-developing

baby collapses and deflection when the

examiner tries to let him take weight on

his feet

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