Evidence map›Paper›PMID 40809284›Full record

ArticleFrontiers in physiology2025

Concurrent training and intermittent fasting reduce transverse cross-sectional area of cardiomyocytes and body mass in Wistar rats.

Henrique Izaias Marcelo, Marina Politi Okoshi, Letícia Estevam Engel, Wanderson da Silva Rosa, Paulo Henrique Aleixo, Guilherme Akio Tamura Ozaki, Everton Alex Carvalho Zanuto, Luiz Carlos Marques Vanderlei, Francis Lopes Pacagnelli, Robson Chacon Castoldi

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Article in Frontiers in physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Henrique Izaias MarceloDepartment of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil.
Marina Politi OkoshiPostgraduate Program in Pathophysiology in Internal Medicine - Botucatu, Paulista State University (UNESP), São Paulo, Brazil.
Letícia Estevam EngelPostgraduate Program in Animal Science, University of Western São Paulo (UNOESTE), São Paulo, Brazil.
Wanderson da Silva RosaPostgraduate Program in Physical Exercise in HealthPromotion, University North of Paraná (UNOPAR), Londrina, Paraná, Brazil.
Paulo Henrique AleixoDepartment of Physical Education - Presidente Prudente, University of Western São Paulo (UNOESTE), São Paulo, Brazil.
Guilherme Akio Tamura OzakiPostgraduate Program in Animal Science, Campinas State University (UNICAMP), Campinas, Brazil.
Everton Alex Carvalho ZanutoDepartment of Physical Education - Presidente Prudente, University of Western São Paulo (UNOESTE), São Paulo, Brazil.
Luiz Carlos Marques VanderleiPostgraduate Program in Movement Sciences - PresidentePrudente, Paulista State University (UNESP), São Paulo, Brazil.
Francis Lopes PacagnelliPostgraduate Program in Animal Science, University of Western São Paulo (UNOESTE), São Paulo, Brazil.
Robson Chacon CastoldiPostgraduate Program in Physical Exercise in HealthPromotion, University North of Paraná (UNOPAR), Londrina, Paraná, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methods: This study identified the alterations caused by concurrent training and intermittent fasting on the myocardium of rats. In total, 39 adult male Wistar rats were used, divided into four groups: control [C (n = 12)], fasting control [FC (n = 11)], training [T (n = 8)], and fasting training [FT (n = 8)]. The critical load test was performed to evaluate and determine the intensity of effort in aerobic training (AT) (swimming). The resistance training protocol (RT) (anaerobic) consisted of four series of 10 jumps, with overload corresponding to 50% of the body mass of each animal, and 1 min of rest between each series. The concurrent training (CT) was composed of a protocol of AT and RT in the same session. The intermittent fasting period was 12/12 h. At the end of the experiment, the animals were weighed to obtain the Lee index; heart weight was verified, and tissue samples were collected for further histological analysis. After obtaining the data, the Shapiro-Wilk test was performed, followed by a two-way analysis of variance (ANOVA) with Tukey's post-test for the variables measured at the end of the experiment. Results: For the variables body mass, feed consumption, and the anaerobic threshold, the FC group showed a greater decrease in the Lee index [(0.28 ± 0.00) p < 0.05)] in relation to the other groups. There were no significant alterations (p > 0.05) in relation to heart weight, fractal dimension, and anaerobic threshold (AnT); finally, both the T and the FT groups presented a significant decrease ([T: (277.3 ± 119.3/FT: 310.5 ± 148.8] p < 0.05) in the transverse cross-sectional area of the cardiomyocytes, when compared to the control groups. Conclusion: The practice of concurrent training for a period of 4 weeks precipitated a decrease in the transverse cross-sectional area of the cardiomyocytes of Wistar rats. Furthermore, when combined with intermittent fasting, concurrent training not only led to a reduction in the transverse cross-sectional area of the cardiomyocytes but also resulted in a decrease in body mass compared to the isolated concurrent training model.

Indexed as

aerobicanaerobiccardiomyocyteexercisefastingheart

Identifiers

PMID40809284
PMCPMC12343495

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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.