Cited by 342Exercise and Physiological ResponsesMuscle Physiology and DisordersMuscle metabolism and nutrition

Injury to skeletal muscle fibers during contractions: conditions of occurrence and prevention

Faulkner, John A, Brooks, Susan V, Opiteck, Julie A·1993·Physical Therapy

Abstract

Contraction-induced injury results in the degeneration and regeneration of muscle fibers. Of the three types of contractions--shortening (concentric), isometric, and lengthening (eccentric)--injury is most likely to occur and the severity of the injury is greatest during lengthening contractions. The magnitude of the injury to muscle fibers may be assessed by direct measures of cellular and ultrastructural damage; by indirect measures of changes in enzyme efflux, calcium influx, ratio of oxidized to reduced glutathione, and force development; and, in human beings, by reports of muscle soreness. The sequence of events includes an initial injury that is primarily mechanical and a secondary metabolic, or biochemical, injury that peaks 1 to 3 days after the injurious contractions. The recovery from contraction-induced injury is usually complete within 30 days. Repeated exposures to protocols of lengthening contractions result in "trained" muscles that are not injured by the protocol that previously caused injury.

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Crossref · 10.1093/ptj/73.12.911

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Authors
Faulkner, J. A., Brooks, S. V., & Opiteck, J. A.
Affiliations
University of Michigan (US)
Corresponding author
Faulkner, John A
Venue
Physical Therapy
Published
1993-12-01
Volume
73
Issue
12
Pages
911-921
ISSN
  • 0031-9023 (ISSN-L)
  • 1538-6724
OpenAlex
W2269278230
Cited by
341
References
0
Citations by year
2026: 4 · 2025: 1 · 2024: 11 · 2023: 3 · 2022: 9 · 2021: 6 · 2020: 12 · 2019: 9 · 2018: 12 · 2017: 10 · 2016: 13 · 2015: 17 · 2014: 13 · 2013: 11 · 2012: 10
FWCI
4.45
Type
journal article
Language
en
Open access
closed
Locations
  • Physical Therapy (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01ag006157-14)
  • National Institute on Aging (AG00114, AG-06157)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
eccentric contraction, muscle degeneration and regeneration, muscle soreness, calcium influx, glutathione oxidation, muscle force production, muscle recovery, injury prevention
MeSH terms
Animals, Biomechanical Phenomena, Biopsy, Calcium, Clinical Protocols, Disease Models, Animal, Exercise Therapy, Glutathione, Humans, Isometric Contraction, Isotonic Contraction, Muscle Contraction, Muscles, Pain, Wounds and Injuries, Mice, Rats

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