Flashcards in Motor Development Deck (88)
What are the 3 goals of motor development?
- control of the body against gravity
- Maintain the body’s center of mass within the base of support
- Intrasegmental and intersegmental isolated movements
What is an example of an intrasegmental movement?
Elbow joint moving separately from wrist and shoulder
What is an example of an intersegmental movement?
Moving head without moving extremities
What term is used to describe a full term infant in the first 28 days after birth?
How long does it take for physiologic flexion to gradually disappear in full term babies without neurologic impairments?
Describe the position of the head, UEs, hips, and pelvis when a baby from birth to 5-6 months is placed in prone.
Head: faces one side
UE: flexed, adducted, and hands fisted
Pelvis: anteriorly rotated
When do babies begin to actively lift their head?
By _ months cervical extension is enough is adequate to lift the head such that the baby's face is at a 45-degree angle with the surface
By _ months cervical extension is enough is adequate to lift the head such that the baby's face is at a 90-degree angle with the surface
The ability to use midline cervical extensors to lift their head is a sign of the diminishing of what reflex?
What does the chin tuck represent in a child who can lift their head?
If the chin is tucked it indicates balanced cervical extensors and flexors
If a child exhibits TV shoulders while prone-on-elbows, the strength of what muscles should be tested?
serratus anterior and cervical extensors/flexors
During the _____ month, at the time when the infant is first attempting to lift his head, UE control at the shoulder begins to develop
What is scapulohumeral elongation?
the elongation of the axillary region as the humerus is flexed and eabducted away from the body and therefore away from the scapulae.
This important step allows babies to get their elbows in position for POE
Being able to shift weight from one UE to the other in the POE position allows for what forearm movements to occur?
Supination on the side to which he shifts and pronation on the side away from which he shifts
What does the pivot prone signify?
The ability to move segmentally from POE to "superman" position in order to pivot in the prone position.
Signifies scapular and pelvic stability that can alternate
The ability to attain the quadruped position requires what 3 types of stability?
What are the 6 modes of locomotion that develop in the prone position in the order they develop?
- pivoting in prone
- plantigrade creeping
What can be defined as moving slowly by dragging the body along the ground?
When does crawling usually develop?
What can be defined as moving across the floor on hands and knees?
When does creeping usually develop?
In the supine position when does head lag appear when the infant is pulled to sitting?
when physiologic flexion disappears sometime within the first month
What milestone develops as the ATNR diminishes?
The ability to bring his head to midline and hold it their
When does the ability to hold the head in midline develop?
The ability to lift the head in supine develops around what month?
What can be defined as the first attempts to stabilize the body, relative to gravity, in all postures?
During what month does the child begin to actively lift his LEs from the surface in supine?
Babies first reach to the ___lateral LE with the UE followed by reaching to the ___lateral LE. This is important for the development of what?