Motor Control pp 195-215 | Cite as

Muscle Stiffness and Motor Control - Forces in the Ankle During Locomotion and Standing

  • Sten Grillner


In order to have any idea of how CNS controls movements, we must know the general properties of the motor, it is set to control and what is required from this motor under normal as well as extreme conditions. We must know how sluggish the muscles are and what forces they can and must develop at different joint angles. We must further know the time course of the movement we are studying under normal and extreme conditions to be able to evaluate if the time available permits reflex adjustments or correcting signals from higher structures during the course of the movement. This kind of data is relatively simple to obtain, without them any discussion of results related to the neural control of movement can only end up in rather loose speculations.


Motor Unit Joint Angle Soleus Muscle Stance Phase Mechanical Axis 
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Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • Sten Grillner
    • 1
  1. 1.Department of PhysiologyUniversity of GöteborgGöteborgSweden

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