Regulation of motor output between young and elderly subjects

  title={Regulation of motor output between young and elderly subjects},
  author={Donald R Earles and Vassilios G. Vardaxis and David M. Koceja},
  journal={Clinical Neurophysiology},
OBJECTIVES Considerable information exists concerning the differences in motoneuron pool (MP) excitability between young and elderly subjects. A recent study demonstrated decreased heteronymous Ia facilitation with aging, suggesting increased presynaptic inhibition (PI) with increasing age as a mechanism for this change (Morita et al., Exp Brain Res 104 (1995) 167). It has been suggested that during voluntary movement, supraspinal, and possibly, segmental mechanisms (Hultborn et al., J Physiol… CONTINUE READING

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