Relation between location of a motor unit in the human biceps brachii and its critical firing levels for different tasks

@article{Romeny1984RelationBL,
  title={Relation between location of a motor unit in the human biceps brachii and its critical firing levels for different tasks},
  author={Bart M. ter Haar Romeny and J. J. Denier van der Gon and C. C. A. M. Gielen},
  journal={Experimental Neurology},
  year={1984},
  volume={85},
  pages={631-650}
}
Critical firing levels (CFLs) of single motor units (MUs) in the long head of the human biceps brachii muscle were determined in combinations of two isometric tasks: flexion of the elbow, supination of the lower arm, and exorotation of the humerus, as well as the corresponding antagonistic tasks. The MU activity was recorded by 25-micron bipolar wire electrodes. Four main patterns of MU recruitment, related to the recording location in the muscle, were found: (i) MUs active only when flexing… CONTINUE READING

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