POSTURE AND BALANCE - PowerPoint PPT Presentation

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POSTURE AND BALANCE

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POSTURE AND BALANCE ... (learned and reflexive) POSTURAL MECHANISMS Cutaneous and Proprioceptive Visual Vestibular SIGNALS OF POSTURAL DISTURBANCE S L I M VPL, ... – PowerPoint PPT presentation

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Title: POSTURE AND BALANCE


1
POSTURE AND BALANCE
2
POSTURAL MECHANISMS
Motor Control
Limb Movement
Postural Disturbance
Feedback Commands (learned and reflexive)
Postural Adjustment
Feedforward Commands (planned, learned)
3
SIGNALS OF POSTURAL DISTURBANCE
Cutaneous and Proprioceptive Visual Vestibular
4
FEEDFORWARD CONTROLS
  • Learned
  • Incorporated into motor behaviors
  • Improved by practice
  • Predicted scaled adjustments of axial
  • and proximal limb muscles
  • Precede and accompany movement

5
FEEDFORWARD CONTROLS
6
VESTIBULAR
RETICULAR
7
(No Transcript)
8
POSTURAL MECHANISMS
Motor Control
Limb Movement
Postural Disturbance
Feedback Commands (learned and reflexive)
Postural Adjustment
Feedforward Commands (planned, learned)
9
FEEDBACK CONTROLS
  • Signals of Postural Disturbance
  • Cutaneous and Proprioceptive
  • Vestibular
  • Visual

10
FEEDBACK CONTROLS
  • Postural Corrections
  • Learned responses
  • Gradient of correction behavior
  • Reflexive responses
  • Balancing behavior
  • Falling behavior

11
FEEDBACK CONTROLS
Vestibular and Neck Reflexes Are Subject To The
Context Of The Motor Behavior

REFLEX TARGET MOTOR
BEHAVIOR BALANCING
FALLING Cervico-collic Neck
Vestibulo-collic Neck
Vestibulo-spinal Body -
Cervico-spinal Body -
12
VESTIBULAR
RETICULAR
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