Evidence map›Paper›PMID 12665607›Full record

ArticleThe Journal of physiology2003

Temperature dependence of the force-generating process in single fibres from frog skeletal muscle.

G Piazzesi, M Reconditi, N Koubassova, V Decostre, M Linari, L Lucii, V Lombardi

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
4.4field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

64 citing papers in PubMed, 110 citations in OpenAlex.

  1. Acute Local Cooling to the Lower Body during Recovery Does Not Improve Repeated Vertical Jump Performance.International journal of environmental research and public health · 2021
    Trial
  2. Menopause alters temperature sensitivity of muscle force in humans.European journal of applied physiology · 2012
    Trial
  3. Article
  4. Ice gliding diatoms establish record-low temperature limits for motility in a eukaryotic cell.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. The Mechanism of Modulation of Cardiac Force by Temperature.International journal of molecular sciences · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
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  20. Review

4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

G PiazzesiDipartimento di Scienze Fisiologiche, Viale G. B. Morgagni, 63, I-50134 Firenze, Italy.
M Reconditi
N Koubassova
V Decostre
M Linari
L Lucii
V Lombardi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Generation of force and shortening in striated muscle is due to the cyclic interactions of the globular portion (the head) of the myosin molecule, extending from the thick filament, with the actin filament. The work produced in each interaction is due to a conformational change (the working stroke) driven by the hydrolysis of ATP on the catalytic site of the myosin head. However, the precise mechanism and the size of the force and length step generated in one interaction are still under question. Here we reinvestigate the endothermic nature of the force-generating process by precisely determining, in tetanized intact frog muscle fibres under sarcomere length control, the effect of temperature on both isometric force and force response to length changes. We show that raising the temperature: (1) increases the force and the strain of the myosin heads attached in the isometric contraction by the same amount (approximately 70 %, from 2 to 17 degrees C); (2) increases the rate of quick force recovery following small length steps (range between -3 and 2 nm (half-sarcomere)-1) with a Q10 (between 2 and 12 degrees C) of 1.9 (releases) and 2.3 (stretches); (3) does not affect the maximum extent of filament sliding accounted for by the working stroke in the attached heads (10 nm (half-sarcomere)-1). These results indicate that in isometric conditions the structural change leading to force generation in the attached myosin heads can be modulated by temperature at the expense of the structural change responsible for the working stroke that drives filament sliding. The energy stored in the elasticity of the attached myosin heads at the plateau of the isometric tetanus increases with temperature, but even at high temperature this energy is only a fraction of the mechanical energy released by attached heads during filament sliding.

Indexed as

Models, BiologicalTemperatureAnimalsElasticityIsometric ContractionMuscle Fibers, SkeletalMuscle, SkeletalMyosinsRana esculentaThermodynamicsMyosins

Identifiers

PMID12665607
PMCPMC2342933
OpenAlexW2055916836

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.