Evidence map›Paper›PMID 32021500›Full record

ReviewOpen access journal of sports medicine2020

Exercise Training and Fasting: Current Insights.

Hassane Zouhal, Ayoub Saeidi, Amal Salhi, Huige Li, M Faadiel Essop, Ismail Laher, Fatma Rhibi, Sadegh Amani-Shalamzari, Abderraouf Ben Abderrahman

Open access · goldAbstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Open access journal of sports medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 5 pooled it
5.5field-weighted citation impact, top 3% 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

46 citing papers in PubMed, 5 syntheses or guidelines pooled it, 80 citations in OpenAlex.

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  7. Caffeine, but not paracetamol (acetaminophen), enhances muscular endurance, strength, and power.Journal of the International Society of Sports Nutrition · 2024
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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

9 authors at 7 institutions in 6 countries.

Hassane ZouhalM2S (Laboratoire Mouvement, Sport, Santé), University of Rennes, Rennes F-35000, France.ORCID 0000-0001-6743-6464
Ayoub Saeidi *Department of Exercise Physiology, Faculty of Physical Education & Sports Science, Kharazmi University, Tehran, Iran.ORCID 0000-0003-2458-6256
Amal Salhi *Department of Medicine Physical and Functional Rehabilitation of the National Institute of Orthopedics "M.T. Kassab", Tunis, Tunisia.
Huige LiDepartment of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany.ORCID 0000-0003-3458-7391
M Faadiel EssopCardio-Metabolic Research Group (CMRG), Department of Physiological Sciences, Stellenbosch University, Stellenbosch 7600, South Africa.ORCID 0000-0002-8434-4294
Ismail LaherDepartment of Anesthesiology, Pharmacology & Therapeutics, Faculty of Medicine, The University of British Columbia, Vancouver, Canada.ORCID 0000-0002-3917-4417
Fatma RhibiM2S (Laboratoire Mouvement, Sport, Santé), University of Rennes, Rennes F-35000, France.ORCID 0000-0003-4017-7663
Sadegh Amani-ShalamzariDepartment of Exercise Physiology, Faculty of Physical Education & Sports Science, Kharazmi University, Tehran, Iran.
Abderraouf Ben AbderrahmanHigher Institute of Sport and Physical Education, Ksar-Said, University of Manouba, Manouba, Tunisia.
Kharazmi University · IRUniversité Rennes 2 · FRJohannes Gutenberg University Mainz · DEManouba University · TNMilitary Hospital of Tunis · TNStellenbosch University · ZAUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fasting is defined as the abstinence from consuming food and/or beverages for different periods of time. Both traditional and modern healthcare systems recommend fasting as a therapeutic intervention for the management of several chronic, non-infectious diseases. Exercising during a fasting state increases lipolysis in adipose tissue while also stimulating peripheral fat oxidation, resulting in increased fat utilization and weight loss. A key focus of this review is to assess whether endurance training performed while fasting induces specific training adaptations, where increased fat oxidation improves long-term endurance levels. Fasting decreases body weight, lean body and fat content in both trained and untrained individuals. Several studies indicate a broader impact of fasting on metabolism, with effects on protein and glucose metabolism in sedentary and untrained subjects. However, there are conflicting data regarding the effects of fasting on glucose metabolism in highly trained athletes. The effects of fasting on physical performance indicators also remain unclear, with some reporting a decreased performance, while others found no significant effects. Differences in experimental design, severity of calorie restriction, duration, and participant characteristics could, at least in part, explain such discordant findings. Our review of the literature suggests that there is little evidence to support the notion of endurance training and fasting-mediated increases in fat oxidation, and we recommend that endurance athletes should avoid high intensity training while fasting.

Indexed as

calorie restrictionendurance performancefasting stateglucose metabolismmetabolic adaptation fat oxidationRamadan

Identifiers

PMID32021500
PMCPMC6983467
OpenAlexW2998894415

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.