Test 2= Biomechanical and NDT Flashcards
(25 cards)
Biomechanical FOR
- frame of reference that focuses on how the body maintains position against gravity.
- Concerned with how children attain and maintain proper posture.
- Utilized in pediatrics for children who cannot attain/maintain proper posture due to musculoskeletal problems.
- artificial supports can be utilized to help maintain optimal posture.
Biomechanical FOR- motor patterns begin reflexively.
-When a movement is made, the body receives feedback, and then develops a different movement pattern in response to feedback. This leads to the development of motor control.
Biomechanical FOR basic assumptions:
- More sophisticated reflexes include: righting, equilibrium, and protective reactions.
- These reactions assist the individual in transitioning from one position to another. Reactions assist in keeping the body upright against gravity.
- These reflexes develop sequentially, but in an overlapping predictable manner.
- Movements create shits in the center of gravity that requires a compensatory reactions.
- Dysfunction of musculoskeletal or neuromuscular system interferes with postural reactions
NDT FOR
- Created for children with cerebral palsy
- based on developmental and neuromaturation theories using a sensorimotor approach
- Designed to work with children with damage to the neurological system.
NDT FOR
- assume the muscle length and muscle strength can be changed
- emphasis on typical vs. atypical movements. Promotion of normal movement patterns is performed
NDT FOR concerned with:
- reach and grasp
- planes of movement
- alignment of the body
- ROM
- Base of support
- muscle strength
- postural control
- weight shift/weight bearing
- mobility
what can NDT be used for?
Atypical muscle tone (spasticity, dystonia, ataxia, rigidity, hypotonia)
impaired anticipatory control
poverty of movement
lack of dissociated movements
sensory processing impairments
secondary impairments
impaired muscle synergies
impaired muscle activation
insufficient force generation
Atypical muscle tone- spasticity
-hypertonus caused by tonic stretch, muscle contractions, and abnormal movement patters
Dystonia
a movement disorder in which involuntary sustained or intermittent muscle contraction results in twisting, repetitive movements or both.
ataxia
lack of coordination during voluntary movements
rigidity
a type of hypertonia characterized by a resistance in externally imposed joint movements that occur at low speeds.
hypotonia
diminished resting muscle tension and decreased ability to generate voluntary muscle force leading to postural instability and excessive flexibility.
Impaired muscular activation
-Both appropriate muscles and inappropriate muscles are activated. This over co-contraction can lead to increased stability and motor control of a joint and limit the degrees of freedom. This is an inefficient manner that can lead to fatigue.
impaired muscle synergies
-Muscle synergy patterns emerge to develop more efficient ways of performing motor tasks. Children with impaired motor synergies use inefficient and ineffective muscle synergies to perform a task.
impaired timing, sequencing, and ability to grade muscle force
-Timing, sequencing, and the ability to grade the correct amount of pressure are essential components of motor control and performance
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Overflow of limb contractions
-Oftentimes children with CNS impairment may utilize more muscle groups than needed to perform a task. This overflow may lead to problems especially when a child attempts to self-initiate.
insufficient force generation
-weakness related to the inability to generate a sufficient force in a muscle for a purpose of posture and movement. This might result in a child not having enough strength to pull apart toys, pull out a chair for him/herself.
impaired anticipatory control
-Anticipatory control is the ability of the muscles to perceive how to react to a force being placed upon it before the force is loaded.
poverty of movement
-refers to an overall decrease in movement due to CNS or musculoskeletal impairments.
loss of dissociated movements
-decreased ability to produce efficient movements where there is a rotation of one part of the body on another.
Sensory processing impairments
-Impairments with SP can lead to difficulty interpreting information correctly and thus the child may produce incorrect or inappropriate motoric responses.
Secondary impairments to CNS or musculoskeletal systems
-these may occur indirectly from the primary motor impairment or environmental.
NDT goal
-NDT provides a framework for structuring intervention to improve functional performance by reducing the dysfunction caused by atypical movement patterns.
- Decrease abnormal tone
- Increase normal tone and equilibrium reactions
- Handling techniques to improve function
- Prevent contractures and deformities
NDT interventions will involve
- handling
- preparation and facilitation
- integration of activities
- positioning.
*NDT wants to see improved quality of movement and more normal movement patterns.