Home LiteratureArticle Details

PMID: 6890904 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't

Distribution of physiological types of motor units in the cat peroneus tertius muscle.

Experimental brain research ·Vol. 48 ·No. 2 ·1982-00-00 ·Pages 177-84

Jami L, Murthy KS, Petit J, Zytnicki D

Abstract

Motor units of the cat peroneus tertius muscle were systematically analyzed using the criteria established by Burke et al. (1973). On the basis of their speed of contraction and resistance to fatigue, 121 (97%) of 125 motor units examined in ten adult cats could be classified as belonging to one of four types: fast-fatigable (FF), fast-resistant (FR), fast-intermediate (FI), and slow-resistant (S). Peroneus tertius was found to contain 30% FF motor units, 9% FI units, 39% FR units, and 22% S units. Contraction times of fast motor units (FF, FR, and FI) ranged from 15 to 27 ms and those of S units from 26 to 42 ms. The mean tetanic tensions were 37 g for FF units, 29 g for FI units, 7.5 g for FR units, and 1.1 g for S units. Fast motor units displayed considerable post-tetanic potentiation of twitch tension. Under similar conditions of stimulation, FF units appeared able to potentiate more and faster than FR units.

MeSH Terms

Animals Axons/physiology Electric Stimulation Evoked Potentials Hindlimb/innervation Humans Motor Neurons/physiology Muscle Contraction Muscles/innervation Neural Conduction Neuromuscular Junction/classification,physiology Spinal Nerve Roots/physiology

Authors & Affiliations

4 authors, click to expand affiliations / ORCID

Jami L

Murthy K S

Petit J

Zytnicki D

References (24)

24 references, click to expand

Fast-conducting skeletofusimotor axons supplying intrafusal chain fibers in the cat peroneus tertius muscle.
J Neurophysiol. 1977 Jul;40(4):791-9 PMID: 142128
Correlation between axonal conduction velocity and tetanic tension of motor units in four muscles of the cat hind limb.
Brain Res. 1975 Oct 10;96(1):114-8 PMID: 1174992
Tetrapartite classification of motor units of cat tibialis posterior.
J Neurophysiol. 1980 Oct;44(4):696-712 PMID: 7431049
Relative strength of synaptic input from short-latency pathways to motor units of defined type in cat medial gastrocnemius.
J Neurophysiol. 1976 May;39(3):447-58 PMID: 181542
A quantitative study of skeletofusimotor innervation in the cat peroneus tertius muscle.
J Physiol. 1982 Apr;325:125-44 PMID: 6213764
Types of intra- and extrafusal muscle fibre innervated by dynamic skeleto-fusimotor axons in cat peroneus brevis and tenuissimus muscles, as determined by the glycogen-depletion method.
J Physiol. 1977 Apr;266(3):713-26 PMID: 140933
PROPERTIES OF MOTOR UNITS IN A HETEROGENEOUS PALE MUSCLE (M. GASTROCNEMIUS) OF THE CAT.
J Neurophysiol. 1965 Jan;28:85-99 PMID: 14244798
A comparison between the effects of a tetanus and the effects of sympathomimetic amines on fast- and slow-contracting mammalian muscles.
Br J Pharmacol Chemother. 1962 Dec;19:464-84 PMID: 14014654
Isometric contractions of motor units in a fast twitch muscle of the cat.
J Physiol. 1973 May;231(1):87-104 PMID: 4715372
Hindlimb muscle fiber populations of five mammals.
J Histochem Cytochem. 1973 Jan;21(1):51-5 PMID: 4348494
Properties of types of motor units in the medial gastrochemius muscle of the cat.
Brain Res. 1974 Feb 15;67(1):89-101 PMID: 4470419
Contraction of muscle fibers in two adjacent muscles innervated by branches of the same motor axon.
J Neurophysiol. 1971 Jan;34(1):132-8 PMID: 4250554
Histochemical staining patterns of muscle fibres in the gastrocnemius, soleus and anterior tibial muscles of the adult cat, as viewed in serial sections stained for lipids and succinic dehydrogenase.
Acta Neurol Scand. 1974;50(3):272-84 PMID: 4134728
Physiological and histochemical characteristics of motor units in cat tibialis anterior and extensor digitorum longus muscles.
J Neurophysiol. 1980 Jun;43(6):1615-30 PMID: 6447772
Properties of motor units in the first deep lumbrical muscle of the cat's foot.
Brain Res. 1975 Nov 7;98(1):37-55 PMID: 1175059
Fusimotor innervation in the cat.
Philos Trans R Soc Lond B Biol Sci. 1970 May 21;258(825):315-46 PMID: 22408831
Effect of prior activity on properties of different types of motor units.
J Neurophysiol. 1971 Jan;34(1):1-16 PMID: 4250555
Physiological types and histochemical profiles in motor units of the cat gastrocnemius.
J Physiol. 1973 Nov;234(3):723-48 PMID: 4148752
Post-tetanic effects in motor units of fast and slow twitch muscle of the cat.
J Physiol. 1974 Feb;237(1):115-21 PMID: 4822583
The effect of activation history on tension production by individual muscle units.
Brain Res. 1976 Jun 18;109(3):515-29 PMID: 1276932
The fast twitch motor units of cat ankle flexors. 1. Tripartite classification on basis of fatigability.
Brain Res. 1977 Sep 23;134(1):35-46 PMID: 912420
The relation between tension and axonal conduction velocity for motor units in the medial gastrocnemius muscle of the cat.
Exp Brain Res. 1976 Oct 28;26(3):325-8 PMID: 991960
PROPERTIES OF MOTOR UNITS IN A HOMOGENEOUS RED MUSCLE (SOLEUS) OF THE CAT.
J Neurophysiol. 1965 Jan;28:71-84 PMID: 14244797
Studies of some twitch and fatigue properties of different motor unit types in the ankle muscles of the adult cat.
Acta Physiol Scand. 1975 Nov;95(3):231-42 PMID: 171916

Article Info

Journal

Experimental brain research

Abbr.

Exp Brain Res

ISSN

0014-4819

DOI

10.1007/BF00237213

Published

1982-00-00

Pages

177-84

Language

English

Region

Germany

NLM ID

0043312

Subset

External Links

PubMed source DOI: 10.1007/BF00237213 View journal details

Analysis Services

Distribution of physiological types of motor units in the cat peroneus tertius muscle.

Contact

WeChat Official Account