Evidence map›Paper›PMID 34578819›Full record

ArticleNutrients2021

Four Weeks of 16/8 Time Restrictive Feeding in Endurance Trained Male Runners Decreases Fat Mass, without Affecting Exercise Performance.

Ashley P Tovar, Christine E Richardson, Nancy L Keim, Marta D Van Loan, Brian A Davis, Gretchen A Casazza

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

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 11 pooled it
3.2field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 11 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Pooled it
  10. Pooled it
  11. Pooled it
  12. Trial
  13. Trial
  14. Trial
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review
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 4 institutions in 1 country.

Ashley P TovarDepartment of Nutrition, University of California, Davis, CA 95616, USA.
Christine E RichardsonDepartment of Nutrition, University of California, Davis, CA 95616, USA.
Nancy L KeimDepartment of Nutrition, University of California, Davis, CA 95616, USA.
Marta D Van LoanDepartment of Nutrition, University of California, Davis, CA 95616, USA.
Brian A DavisPhysical Medicine and Rehabilitation, University of California Davis Medical Center, Sacramento, CA 95816, USA.
Gretchen A CasazzaDepartment of Kinesiology, Sacramento State University, Sacramento, CA 95819, USA.
University of California, Davis · USWestern Human Nutrition Research Center · USCalifornia State University, Sacramento · USUniversity of California Davis Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTime restricted Feeding (TRF) is a dietary pattern utilized by endurance athletes, but there is insufficient data regarding its effects on performance and metabolism in this population. The purpose of this investigation was to examine the effects of a 16/8 TRF dietary pattern on exercise performance in trained male endurance runners.

methodsA 4-week randomized crossover intervention was used to compare an 8-h TRF to a 12-h normal diet (ND) feeding window. Exercise training and dietary intake were similar across interventions. Runners completed a dual-energy X-ray absorptiometry (DXA) scan to assess body composition, a graded treadmill running test to assess substrate utilization, and ran a 10 km time trial to assess performance.

resultsThere was a significant decrease in fat mass in the TRF intervention (-0.8 ± 1.3 kg with TRF (

conclusionThis investigation demonstrated that adherence to a 4-week 16/8 TRF dietary intervention decreased fat mass and maintained fat-free mass, while not affecting running performance, in trained male endurance runners.

Indexed as

Adipose TissueBody CompositionFastingRunningAdultAthletesAthletic PerformanceDietEndurance TrainingHumansMaleReference ValuesTimeYoung Adult16/8 dietintermittent fastingrunnerssport performancetime restricted feeding

Identifiers

PMID34578819
PMCPMC8469445
OpenAlexW3194630601

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.