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Physiology and pathophysiology of skeletal muscle contractions. Part I. Dynamic activity.
J Oral Rehabil 1986; 13(5):451-61JO

Abstract

An overview is presented of the physiology and pathophysiology of dynamic skeletal muscle contractions in the intact living organism. Dynamic muscle activities are divided into concentric contractions with shortening of muscle fibres and the production of positive work, and eccentric contractions with lengthening of muscle fibres and the production of negative work. In positive work, muscle tension overcomes external forces. In negative work, external forces overcome muscle tension. The latter phenomenon, with relatively few active motor units, explains the injuries induced by eccentric contractions. Both the contractile and non-contractile elements are involved in the muscle injuries and, clinically, they are referred to as myofibrositis.

Authors

No affiliation info available

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

3534193

Citation

Christensen, L V.. "Physiology and Pathophysiology of Skeletal Muscle Contractions. Part I. Dynamic Activity." Journal of Oral Rehabilitation, vol. 13, no. 5, 1986, pp. 451-61.
Christensen LV. Physiology and pathophysiology of skeletal muscle contractions. Part I. Dynamic activity. J Oral Rehabil. 1986;13(5):451-61.
Christensen, L. V. (1986). Physiology and pathophysiology of skeletal muscle contractions. Part I. Dynamic activity. Journal of Oral Rehabilitation, 13(5), pp. 451-61.
Christensen LV. Physiology and Pathophysiology of Skeletal Muscle Contractions. Part I. Dynamic Activity. J Oral Rehabil. 1986;13(5):451-61. PubMed PMID: 3534193.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Physiology and pathophysiology of skeletal muscle contractions. Part I. Dynamic activity. A1 - Christensen,L V, PY - 1986/9/1/pubmed PY - 1986/9/1/medline PY - 1986/9/1/entrez SP - 451 EP - 61 JF - Journal of oral rehabilitation JO - J Oral Rehabil VL - 13 IS - 5 N2 - An overview is presented of the physiology and pathophysiology of dynamic skeletal muscle contractions in the intact living organism. Dynamic muscle activities are divided into concentric contractions with shortening of muscle fibres and the production of positive work, and eccentric contractions with lengthening of muscle fibres and the production of negative work. In positive work, muscle tension overcomes external forces. In negative work, external forces overcome muscle tension. The latter phenomenon, with relatively few active motor units, explains the injuries induced by eccentric contractions. Both the contractile and non-contractile elements are involved in the muscle injuries and, clinically, they are referred to as myofibrositis. SN - 0305-182X UR - https://www.unboundmedicine.com/medline/citation/3534193/Physiology_and_pathophysiology_of_skeletal_muscle_contractions._Part_I._Dynamic_activity L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0305-182X&date=1986&volume=13&issue=5&spage=451 DB - PRIME DP - Unbound Medicine ER -