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June 1, 1980Journal of Neurophysiology

Physiological and histochemical characteristics of motor units in cat tibialis anterior and extensor digitorum longus muscles

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Population

Cat tibialis anterior (TA) and extensor digitorum longus (EDL) muscles

Comparison

Intracellular recording, stimulation techniques… vs Medial gastrocnemius muscle

Design

Preclinical

Authors

RDRichard P. DumUniversity of PittsburghTKThelma T. KennedyJohns Hopkins University

Discussion

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Implication

Cat motor unit distributions highlight functional specialization; extends classifications in animal models while leaving human translation open.

Structured PICO

P
Population
Cat tibialis anterior (TA) and extensor digitorum longus (EDL) muscles
I
Intervention
Intracellular recording, stimulation techniques, histochemical staining, and glycogen depletion
C
Comparator
Medial gastrocnemius (MG) muscle (historical comparison)
O
Outcome
Physiological properties (sag, fatigue resistance), histochemical profile, twitch time to peak (TwTP), tetanic tension, and motoneuronal input resistancesurrogate

The mechanical characteristics and intrinsic motoneuronal properties of cat TA and EDL muscles parallel their extensor antagonist MG, but with quantitative differences reflecting their functional roles.

Cite This Study

Dum et al. (1980) studied this question.

synapsesocial.com/papers/6a969280dc0901934ff697f0https://doi.org/10.1152/jn.1980.43.6.1615
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Maximal force as a function of anatomical features of motor units in the cat tibialis anterior1987 · 173 citations
  2. 2Membrane electrical properties and prediction of motor-unit type of medial gastrocnemius motoneurons in the cat1985 · 312 citations
  3. 3Isometric contractions of motor units in a fast twitch muscle of the cat1973 · 105 citations
  4. 4Firing patterns of gastrocnemius motor units in the decerebrate cat1968 · 162 citations
  5. 5Relative strength of synaptic input from short-latency pathways to motor units of defined type in cat medial gastrocnemius1976 · 257 citations