Motor skills disorders in young children - KAIMH · •Milani Comparetti and Gidoni. Test. Pattenrs...
Transcript of Motor skills disorders in young children - KAIMH · •Milani Comparetti and Gidoni. Test. Pattenrs...
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Motor Skills Disorders in young
children
M Maldonado. MD. Jill Glinka OT. Sari
Lubin OT
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Synonyms
• Clumsy child
• Motor clumsiness
• Motor control disorder
• Developmental coordination disorder
• Developmental disorder of motor control
• Motor dyspraxia
• Dyscoordination disorder
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Importance
• Early identification
• Marker of other difficulties
• Early intervention
• Child’s self esteem (preschooler and later
on)
• Child’s social acceptability and peer
relations. Academic tasks
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Importance
• Condition varies in severity from obvious to
very mild
• Often goes unnoticed
• Perceived as laziness, lack of interest,
dislike of the activity
• Higher association with behavioral
difficulties and learning disabilities,
attention span problems
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Motor coordination
• Developmental task, acquired asa process
• Requires processing in brain, input,
processing and output
• Influenced by higher functions, like
motivation, planning, intent
• Participation of cerebellum, vestibular
system, proprioceptive reception, etc.
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Components of motor
functioning
• Muscular Tone
• Gross motor skills
• Fine motor skills
• Motor planning
• Sequencing of movements
• Strength
• Sensory integration
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components
• MUSCULAR TONE
• Basic and consistent baseline state of contraction
• Hypotonicity: child appears floppy, tends to adopt positions of less resistance, leans on things
• Hypertonicity. Like “washboard”, stiff, less easy movement. Tremor?
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components
• GROSS MOTOR SKILLS
• Activities of everyday life, walking, running,
throwing
• Jumping, standing, hopscotch,.
• Posture influences performance
• Organization, smoothness of movement,
whether achieves its goal, COST TO THE
CHILD
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components
• FINE MOTOR SKILLS
• small muscles in organized fashion, hands, feet, head, face ( peri-oral, periocular, etc.)
• Delicate tasks. Pincer grasp? Intentional tremor?
• Drawing, cutting, manipulation of small objects, blowing bubbles, whistling, eating, etc. Also articulation of words
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components
• STRENGTH
• Does child appear too strong? I.e. too
forceful, brusque?, not able to modulate
strength?
• Does child appear too weak, unable to draw
intense lines, to hold a glass, to open
packages, a can, etc. ?
• Muscular development? High or low?
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components
• MOTOR PLANNING
• imagine a mental strategy to carry out a
movement or action
• How to overcome an obstacle
• Odd strategies? or no idea of how to
accomplish a movement?
• Falls easily, falls while standing, trips ion
self, etc.
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components
• SPEED AND SEQUENCING OF MOVEMENTS
• Whether child can achieve movement but
also speed
• Whether the movement can be
accomplished in sequence
• more obvious in complex motor tasks
• child may appear slower , or attempt too
fast performance
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components
• SENSORY INTEGRATION
• Input in different sensory channels
• Processing in the brain
• Organization of output
• COPING RESPONSES, depending on the task
• Variability of coping depending on sensory
stimulation, state of organization, etc
• BEST PERFORMANCE?
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Epidemiological features
• No evidence of ethnicity factors
• More frequently affected are boys
• Most obvious during school age years
• Can be detected in infancy or early
childhood.
• US studies. Around 5% of children of school
age, enough to cause concern
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Epidemiology
• Sweden (Kadesjo- Gillberg). 6.1% in a
sample of children (409) non referred
• High stability, 8 months later. Boys affected
more frequently
• Singapore (Wright). 4% of children 6 to 9
years of age.
• UK. 10% of children (Henderson).
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Clinical features
• INFANCY
• Child may appear hypertonic.
• Reacts with easy startles, or hyper-reactive
• Maintains extensor tone
• Persistence of primitive reflexes beyond 6-
7 months ( Moro, plantar, palmar, rooting,
etc.)
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Clinical features. infancy
• Hypertonic child may appear “ advanced”,
like standing very soon, trying to walk by 8
months, etc.
• (African American infants may develop
sooner than other ethnic groups)
• Movements appear stiff
• No opposing thumb at 6months
• tip toe walking, toes point down
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Clinical features. infancy
• More hypotonic child
• Child may be very placid
• Not learning to sit , to roll over
• No self-correcting reflexes
• child sees world go by
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Clinical manifestations toddler
• Food management difficulties, higher
consistencies
• no develo p rotatory grasp
• No develop pincer grasp around 10 months
• Not able to maintain upright posture or sit,
• late in developing standing ability and walk
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Clinical. Preschool child
• Not able to jump on both feet
• Not able to hop on one foot after four years
• Not developing dominance right or left by
age four
• NO hand preference
• General impression of clumsiness
• Pencil grasp, primitive
• All this requires exposure by parents
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Preschool clinical
• Move whole arm to carry out small motor
act
• no isolation of the wrist
• Shoulder belt is weak?
• Easily gets tired
• Often says that it hurts to draw
• Child says he hates to draw or model with
clay
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Clinical . Preschool
• Unable to squeeze with fingers
• difficulty with kicking ball, cutting with
scissors, coloring
• tying shoes, putting on coat
• Test motor sequencing
• Diadokokinesis
• Move limbs against resistance
• What is the investment in each movement?
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Clinical preschool
• Does child easily fatigue?
• Does child seem unable to modulate
strength and has brusque movements/
• Fatigue brings on more errors
• Observe signs of overflow of movement,
grimacing, strenuous movements,
• Test proprioception
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Motor coordination diff.
• Causes
• Genetic factors
• Use ob substances in utero
• Prematurity
• Exposure and opportunity to practice
movements.
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Co-morbidity
• Attention deficit hyperactivity
• DAMP syndrome (Disorder of Attention,
Motor Control and Perception]
• Written expression disorder
• Phonological problems
• Worse self esteem , anxiety about certain
activitities
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Tests
• Test for soft neurological signs (Denckla)
• Test of motor impairment (TOMI) normed
for different ages balance, motor abilities
in everyday life tasks
• ABC test of motor coordination. Fine
movements. Unilateral, bilateral, making
holes, etc.
• 2nd. All the body. Balance, jumping, quick
movements.
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tests
• Milani Comparetti and Gidoni. Test.
Pattenrs of movement that may be
qualitatively different.
• Not only whether child can do it.
• Primitive reflexes.
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tests
• Kinesthetic sensitivity test. (Laszlo and
Bairstow)
• Bruininks Oserestsky motor proficiency
• body’s position in space, proprioception
• Towen’s test for minor neurological
dysfunction
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intervention
• Occupational therapy
• Sensory integration approach
• Models that address the whole child
• Models that address teaching specific
skills one at a time.
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Intervention
• Cognitive motor intervention
• teach a movement or a pattern of
movement.
• ABC movement manual ( Henderson and
Sugden).
• Set of exercises to practice till mastered
• Also motivation and cognitive issues