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Cited by 320Muscle metabolism and nutritionSports Performance and TrainingAnimal Nutrition and Physiology

The DOI matches its Crossref record; 70 of the 73 references it cites were found in a registry or an index.

Protein requirements and supplementation in strength sports

Phillips, Stuart M·2004·Nutrition
DOI 10.1016/j.nut.2004.04.009
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Abstract

Daily requirements for protein are set by the amount of amino acids that is irreversibly lost in a given day. Different agencies have set requirement levels for daily protein intakes for the general population; however, the question of whether strength-trained athletes require more protein than the general population is one that is difficult to answer. At a cellular level, an increased requirement for protein in strength-trained athletes might arise due to the extra protein required to support muscle protein accretion through elevated protein synthesis. Alternatively, an increased requirement for protein may come about in this group of athletes due to increased catabolic loss of amino acids associated with strength-training activities. A review of studies that have examined the protein requirements of strength-trained athletes, using nitrogen balance methodology, has shown a modest increase in requirements in this group. At the same time, several studies have shown that strength training, consistent with the anabolic stimulus for protein synthesis it provides, actually increases the efficiency of use of protein, which reduces dietary protein requirements. Various studies have shown that strength-trained athletes habitually consume protein intakes higher than required. A positive energy balance is required for anabolism, so a requirement for "extra" protein over and above normal values also appears not to be a critical issue for competitive athletes because most would have to be in positive energy balance to compete effectively. At present there is no evidence to suggest that supplements are required for optimal muscle growth or strength gain. Strength-trained athletes should consume protein consistent with general population guidelines, or 12% to 15% of energy from protein.

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3 of the 73 references couldn’t be matched to a known paper.

Research works printed but not linked: 3

  1. Dohm, 1985, Biphasic changes in 3-methylhistdine excretion in humans after exercise, Am J Physiol, 248, E588
  2. Young, 1987, Leucine kinetics during three weeks at submaintainence-to-maintainence intakes of leucine in men, Hum Nutr Clin Nutr, 41C, 1
  3. Young, 1985, Nutritional balance studies, J Nutr, 116, 70

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Metadata

Authors
Phillips, S. M.
Affiliations
McMaster University (CA)
Corresponding author
Phillips, Stuart M
ORCID
Phillips, Stuart M
Venue
Nutrition
Publisher
Elsevier BV
Published
2004-07
Volume
20
Issue
7-8
Pages
689-695
ISSN
0899-9007 (ISSN-L)
DOI
10.1016/j.nut.2004.04.009
OpenAlex
W2097876721
Cited by
320
References
73
Citations by year
2026: 6 · 2025: 8 · 2024: 9 · 2023: 13 · 2022: 7 · 2021: 19 · 2020: 16 · 2019: 20 · 2018: 13 · 2017: 17 · 2016: 13 · 2015: 17 · 2014: 18 · 2013: 19 · 2012: 13
FWCI
1.09
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
protein requirements, protein supplementation, strength-trained athletes, nitrogen balance, muscle protein synthesis, muscle protein accretion, amino acid catabolism, energy balance, protein efficiency, protein intake
MeSH terms
Dietary Proteins, Humans, Muscle Proteins, Nutritional Requirements, Sports, Exercise, Muscle, Skeletal

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