Evidence map›Paper›PMID 23459753›Full record

Trial reportThe Journal of physiology2013

Timing and distribution of protein ingestion during prolonged recovery from resistance exercise alters myofibrillar protein synthesis.

José L Areta, Louise M Burke, Megan L Ross, Donny M Camera, Daniel W D West, Elizabeth M Broad, Nikki A Jeacocke, Daniel R Moore, Trent Stellingwerff, Stuart M Phillips and 2 more

Registry-linked trialOpen access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07245199 (Protein Intake Distribution to Support Muscle Anabolism in Healthy Young Adults), which is not on this map. Cited by 222 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
222citing papers in PubMed, 9 pooled it
21.8field-weighted citation impact, top 1% 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.

NCT07245199 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Protein Intake Distribution to Support Muscle Anabolism in Healthy Young Adults

TypeinterventionalSponsorMaastricht University Medical CenterRan2026 to 2027Enrolled36ConditionsNo Condition, Healthy IndividualsArmsprotein intake, Protein intake
3 · Its place in the literature

Who cites it

222 citing papers in PubMed, 9 syntheses or guidelines pooled it, 468 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. Dietary Intake of Competitive Bodybuilders.Sports medicine (Auckland, N.Z.) · 2015
    Pooled it
  10. Trial
  11. Trial
  12. Trial
  13. Trial
  14. Trial
  15. Trial
  16. Trial
  17. Trial
  18. Trial
  19. Trial
  20. Trial

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 3 countries.

José L AretaExercise Metabolism Group, Health Innovations Research Institute, School of Medical Sciences, RMIT University, Melbourne, Australia.
Louise M Burke
Megan L Ross
Donny M Camera
Daniel W D West
Elizabeth M Broad
Nikki A Jeacocke
Daniel R Moore
Trent Stellingwerff
Stuart M Phillips
John A Hawley
Vernon G Coffey
RMIT University · AUMcMaster University · CANestlé (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Quantity and timing of protein ingestion are major factors regulating myofibrillar protein synthesis (MPS). However, the effect of specific ingestion patterns on MPS throughout a 12 h period is unknown. We determined how different distributions of protein feeding during 12 h recovery after resistance exercise affects anabolic responses in skeletal muscle. Twenty-four healthy trained males were assigned to three groups (n = 8/group) and undertook a bout of resistance exercise followed by ingestion of 80 g of whey protein throughout 12 h recovery in one of the following protocols: 8 × 10 g every 1.5 h (PULSE); 4 × 20 g every 3 h (intermediate: INT); or 2 × 40 g every 6 h (BOLUS). Muscle biopsies were obtained at rest and after 1, 4, 6, 7 and 12 h post exercise. Resting and post-exercise MPS (l-[ring-(13)C6] phenylalanine), and muscle mRNA abundance and cell signalling were assessed. All ingestion protocols increased MPS above rest throughout 1-12 h recovery (88-148%, P < 0.02), but INT elicited greater MPS than PULSE and BOLUS (31-48%, P < 0.02). In general signalling showed a BOLUS>INT>PULSE hierarchy in magnitude of phosphorylation. MuRF-1 and SLC38A2 mRNA were differentially expressed with BOLUS. In conclusion, 20 g of whey protein consumed every 3 h was superior to either PULSE or BOLUS feeding patterns for stimulating MPS throughout the day. This study provides novel information on the effect of modulating the distribution of protein intake on anabolic responses in skeletal muscle and has the potential to maximize outcomes of resistance training for attaining peak muscle mass.

Indexed as

Resistance TrainingAdultAmino AcidsEatingHumansInsulinMaleMilk ProteinsMuscle ProteinsMyofibrilsProtein BiosynthesisTime FactorsWhey ProteinsYoung AdultAmino AcidsInsulinMilk ProteinsMuscle ProteinsWhey Proteins

Identifiers

PMID23459753
PMCPMC3650697
OpenAlexW1528899214

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.