Evidence map›Paper›PMID 25803693›Full record

ArticlePloS one2015

High intensity interval and endurance training have opposing effects on markers of heart failure and cardiac remodeling in hypertensive rats.

Tanya M Holloway, Darin Bloemberg, Mayne L da Silva, Jeremy A Simpson, Joe Quadrilatero, Lawrence L Spriet

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
12.8field-weighted citation impact, top 2% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. HIT Your Brain: Neuron and New Run.Advances in neurobiology · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. An "Exercise" in Cardiac Metabolism.Frontiers in cardiovascular medicine · 2018
    Review
  17. Article
  18. Article
  19. Beneficial and harmful effects of exercise in hypertensive patients: the role of oxidative stress.Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Review
  20. Article
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

6 authors at 2 institutions in 1 country.

Tanya M HollowayDepartment of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
Darin BloembergDepartment of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada.
Mayne L da SilvaDepartment of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
Jeremy A SimpsonDepartment of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
Joe QuadrilateroDepartment of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada.
Lawrence L SprietDepartment of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
University of Guelph · CAUniversity of Waterloo · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There has been re-emerging interest and significant work dedicated to investigating the metabolic effects of high intensity interval training (HIIT) in recent years. HIIT is considered to be a time efficient alternative to classic endurance training (ET) that elicits similar metabolic responses in skeletal muscle. However, there is a lack of information on the impact of HIIT on cardiac muscle in disease. Therefore, we determined the efficacy of ET and HIIT to alter cardiac muscle characteristics involved in the development of diastolic dysfunction, such as ventricular hypertrophy, fibrosis and angiogenesis, in a well-established rodent model of hypertension-induced heart failure before the development of overt heart failure. ET decreased left ventricle fibrosis by ~40% (P < 0.05), and promoted a 20% (P<0.05) increase in the left ventricular capillary/fibre ratio, an increase in endothelial nitric oxide synthase protein (P<0.05), and a decrease in hypoxia inducible factor 1 alpha protein content (P<0.05). In contrast, HIIT did not decrease existing fibrosis, and HIIT animals displayed a 20% increase in left ventricular mass (P<0.05) and a 20% decrease in cross sectional area (P<0.05). HIIT also increased brain natriuretic peptide by 50% (P<0.05), in the absence of concomitant angiogenesis, strongly suggesting pathological cardiac remodeling. The current data support the longstanding belief in the effectiveness of ET in hypertension. However, HIIT promoted a pathological adaptation in the left ventricle in the presence of hypertension, highlighting the need for further research on the widespread effects of HIIT in the presence of disease.

Indexed as

Ventricular RemodelingAnimalsBiomarkersHeart FailureHypertensionHypertrophy, Left VentricularHypoxia-Inducible Factor 1, alpha SubunitMaleNitric Oxide Synthase Type IIIPhysical Conditioning, AnimalPhysical EnduranceRandom AllocationRatsRats, Inbred DahlSodium, DietaryBiomarkersHif1a protein, mouseHypoxia-Inducible Factor 1, alpha SubunitNitric Oxide Synthase Type IIINos3 protein, mouseSodium, Dietary

Identifiers

PMID25803693
PMCPMC4372563
OpenAlexW1983459372

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.