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Postural Control Tru
Lecture 7 Movement Science
| Question | Answer |
|---|---|
| Postural activation patterns can be divided into what tow parts? | Preparatory phase & Compensatory Phase |
| Preparatory phase | Postural muscles are activated in response to the direction of the reach (if forward, then posterior muscles are recruited, if sideways, then contralateral postural muscles (lateral flexors) |
| Compensatory Phase | After the movement is complete, postural muscles are again recruited in a feedback manner, to stabilize the body further. |
| There is a pre-selection of the postural adapter muscles referred to as a ___________? | Central Set:refers to a state of the nervous system that is influenced or determined by the context of the task…or anticipated task |
| What muscles are weaker in those with back pain and do not fire like healthy persons for postural sets? | TVA, internal obliques, and lumbar multifidi |
| Gait: What areas are responsible for CPG? | spinal cord, brainstem, cerebellum, basal ganglia, vision, cerebral input. |
| Gait: Spinal Cord | Reflexive gait |
| Gait: Cerebellum and Brainstem | Timing and Task Specific Adapatations (like stepping higher or lower) |
| Gait: Basal ganglia | Dynamic Stability and Postural Tone |
| Gait: Vision | Need to gain typical gait pattern that allows adjustment for rough terrain |
| Gait: Brain adds (assuming visual and cortex) | Vision Orientation to novel Situations Spatial orientation |
| What happens when we remove sensation from gait? | 1) Slow Down 2) Steps become stereotypical 3) Balance is poor |
| Vision for Reactive strategies help us determine...? | 1) our speed 2) influence our bodies alignment in space (PERCEPTION of our visual field1) |
| How do we initiate gait? | 1) Reduction of activity in gastroc/soleus 2) Activation of the TIb Anterior 3) GRFV moves toward stance leg, while moving leg swings and dorsiflexors become active |
Created by:
evewave
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