Relationship between limb movement speed and associated contraction of the trunk muscles

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      <subfield code="a">Relationship between limb movement speed and associated contraction of the trunk muscles</subfield>
      <subfield code="c">Paul W. Hodges and Carolyn A. Richardson</subfield>
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      <subfield code="a">Rapid shoulder movement is preceded by contraction of the abdominal muscles to prepare the body for the expected disturbance to postural equilibrium and spinal stability provoked by the reactive forces resulting from the movement. The magnitude of the reactive forces is proportional to the inertia of the limb. The aim of the study was to investigate if changes in the reaction time latency of the abdominal muscles was associated with variation in the magnitude of the reactive shoulder flexion at three different speeds (fast, natural and slow)</subfield>
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      <subfield code="d">London [etc.]</subfield>
      <subfield code="g">Vol. 40, nº 11, November 1997 ; p. 1220-1230</subfield>
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