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Cited by 72Muscle Physiology and DisordersCardiovascular and exercise physiologyMuscle activation and electromyography studies

Correlation between shortening velocity, force—velocity relation and histochemical fibre-type composition in rat muscles

Ranatunga, K. W., Thomas, P. E.·1990·Journal of Muscle Research and Cell Motility
DOI 10.1007/bf01843577
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Abstract

Isometric and isotonic contractions of three muscles in the rat hind leg (soleus, extensor digitorum longus (EDL) and peroneus longus (PL] were recorded in situ at 35 degrees C and with nerve stimulation. Additionally, the histochemical muscle fibre-type composition of the three muscles was determined by the method of Guth and Samaha (1970). The data obtained from soleus and EDL muscles were similar to those reported in previous studies. On the basis of twitch contraction time, rate of rise of tetanic tension and maximum shortening velocity, the contraction speed of EDL was 2-3 times higher than in soleus. In the PL muscle, the twitch contraction time, rate of tension rise and shortening velocity were 17 ms, 30 Po/s and 12 muscle fibre lengths/s, respectively; the data showed that the contraction speed of PL muscle was intermediate between that of the soleus and EDL muscles. In the case of soleus, more than 75% of the cross-sectional area was occupied by type 1 (slow) fibres; in both EDL and PL muscles more than 90% of the area was occupied by type 2 (fast fibres). However, the two fast muscles (EDL and PL) had different proportions of type 2B fibres; the area occupied by the type 2B fibre complement was less than 5% in PL, whereas it was around 70% in EDL muscle. The differences in shortening velocity and force-velocity relation among the three muscles could be explained on the basis of their respective muscle fibre-type compositions.

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  • Studies on chemically skinned human fibers reveal that MyHC isoform composition is the key determinant of muscle fiber contractile velocity and rate of force development.

    “Studies on chemically skinned human fibers reveal that MyHC isoform composition is the key determinant of muscle fiber contractile velocity and rate of force development (11, 72).”

    From Sex-Based Differences in Skeletal Muscle Kinetics and Fiber-Type Composition (2015) · cites this paper as [72]

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Authors
Ranatunga, K. W., & Thomas, P. E.
Affiliations
University of Bristol (GB)
ORCID
Ranatunga, K. W.
Venue
Journal of Muscle Research and Cell Motility
Publisher
Springer Science and Business Media LLC
Published
1990-06
Volume
11
Issue
3
Pages
240-250
ISSN
  • 0142-4319 (ISSN-L)
  • 1573-2657
DOI
10.1007/bf01843577
OpenAlex
W2062959884
Cited by
72
References
40
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 4 · 2014: 3 · 2013: 3 · 2012: 3
FWCI
1.27
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • Journal of Muscle Research and Cell Motility (publishedVersion)
  • PubMed (publishedVersion)
Funders
Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
Keywords
shortening velocity, force-velocity relationship, muscle fiber type distribution, soleus muscle, extensor digitorum longus, peroneus longus, twitch contraction time, muscle contraction speed
MeSH terms
Animals, Histocytochemistry, Isometric Contraction, Male, Microscopy, Electron, Muscle Contraction, Muscles, Rats, Inbred Strains, Rats

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