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What is a righting reaction?
automatic mvmt that occurs when another part of the body has active or resistive mvmt
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What muscle groups do you resist to achieve synkinetic foot inversion and DF? (ant. tib.)
- sitting or supine
- resist hip flexion
- resist hip adduction at foot
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What muscle groups do you resist to achieve synkinetic hip abd? (gluteus medius)
- prone or supine
- resist arm abduction
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What muscle groups do you resist to achieve synkinetic hip ext? (glutes maximus, HS's)
- supine: legs hanging over edge of table, flex hip and knee up and resist knee ext and PF
- prone: with knee flexed, resist PF and knee ext; add resisted back ext
- sitting: with hips in acute flexion, resist PF
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What muscle groups do you resist to achieve synkinetic knee flexion? (HS's, popliteus, sartorious, gracilis, gastroc)
- sitting or supine
- resist hip flexion
- resist trunk flexion and neck flexion
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What muscle groups do you resist to achieve synkinetic shld flex? (deltoid, coracobrachialis)
- supine
- resist neck flexion
- add resisted trunk flexion and hip flexion
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If you maximally resist hip flexion, what occurs at the knee and ankle?
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If you max resist trunk ext while prone, what occurs at the hip, knee, and ankle?
flexion, DF
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If you max resist neck flexion (shld elevation) what occurs with the upper extremities?
- shld flexion
- elbow ext
- neutral wrist
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If you max resist neck ext what occurs with the upper extremity?
shoulder and elbow ext
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What is a reaction prior to birth, or integrated during the first 4-6 months?
primitive reaction
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What places a primitive reaction and is usually fully developed by 6 months?
mature reactions
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What is a righting reaction?
- align the head and trunk, attempting to obtain a vertical position against gravity
- use head first to pull themselves back to neutral after leaning
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What is an equilibrium reaction?
- automatic total body reactions made to maintain or control the COG in response to being moved
- little rotation and weight shifting
- multiplane
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What is the use of extremities for support to maintain an upright position in reponse to being moved?
- protective reaction
- develops before tilt reactions
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What is the automatic response of the body and extremities to control a shifting COG in response to being moved?
tilt reaction
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