Newborn Flashcards
How do we view motor development?
Chronological
Positional
Chronological view of motor development
Looks at multiple positions at different times in a baby/human life
Able to compare baby to typical development - age appropriate skills
Able to provide understanding of development
Positional view of motor development
Looking at how an individual positions mature through time and development
Allows us to look at quality of motion and the progress of that particular skill
How does an individual progress throughout the prone position over age
Able to provide understanding of development
What are theories of motor behavior
Assumptions about development/movement
Guides therapists in performing evaluation and interventions
Individual, task, environment
Reflexive and Hierarchial Theory
Top down control
Observed progression of development
Neuro-maturational theory
utilizing the ideas of reflex and hierarchical theory to explain infant development
Reflexes are typically thought of as a response to a stimulus - reflexes are now thought of as a role in development but not the sole determinant
Reflexive, Hierarchical, neuro-maturational are all based on the idea of
Neuro-facilitation
Theory of motor behavior - Task-oriented approach
Organized around behavioral goals
Less around neuro-facilitation
Movement observed after lesion based on remaining systems abilities =
Compensations
For task oriented approach it it Important to practice ____ rather than ___
Important to practice functional tasks rather than movement patterns for their own sake
Dynamic systems theory of motor behavior
Complex interactions
Incorporates multiple systems - body, environment, task and motivation
Factors impacting development
Genetic
CNS maturation
Environment
Anatomical (body type, mm fiber type, ROM, tone)
Typical vs. Normal development
Should use the word typical
There is a normal bell shaped curve
TYpical motor development begins with
Fetal development
Supported womb full term = 38-40 weeks, premature = 36 weeks or earlier
Unsupported womb
Placenta rupture, womb with alcohol in it..
Observed progression of development based in reflexive and hierarchical model
Cephalo-caudal
Prox - distal
Automatic - reflex - voluntary
Mass - isolated - integrated
Mobility - stability, controlled mobility - static dynamic - skill
Gross - fine
dominaed by gravity - control over gravity
Anti-gravity movement progression - start in
physiological flexion and progress to anti-gravity extension Physiological flexion Active extension Active balance btw flexors/extensors Rotation - dynamic control Transition occurs
Head control n prone
Healthy infant initially able to clear nose via rotation at birth
Begins with rotation that progresses toe xtension, balance btw flexors and extensors, and then dynamic head control
Equilibrium reactions
Bodies ability to maintain upright postiion against gravity
Starts by gaining head control
Trunk follows with elongation to lift body against gravity
Weight shift - named of position by side weight shifted towards
UE development begins with
Weight bearing
Shoulders begin in ext/add/IR/elbow flexion
As weight bear thorugh forearms and hands continues –> shoulders abduct and flex, pushing through forearms, development of movement in hands
Develops Protective Reactions in the UEs
Protective Reactions
like stepping reactions in legs but for the arms
Pelvic hip development and mobility/stability
Weight shifts caudally towards pelvis
Pelvis drops towards the floor - weight bearing through pelvis
Development of hip extension/ankle PF - antigravity
Reflexes =
Response of the body to a certain stimulus
Reflexes are typically either:
Present or Absent
Reflexes - integrated
when a child uses it when needed/required as a survival skill
Reflexes - obligatory cs non obligatory
Obligatory - stuck in reflexive pattern that should be integrated
Why do we have reflexes
Adaptive and used for survival skills
Examples of reflexes - rooting and sucking
Rooting - stroke side of cheek and baby turn head - functional for eating
Sucking reflex - also for eating
Reflexes also persist due to
Usefulness for skill
Alter by adapting environment/sensory cues
Lack of more mature pattern - slow/atypical development
Usefulness for skill - ATNR
ATNR - with cervical rotation, same side elbow extension, opp side flexion
Present at birth
Integrated 4-6 months