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Cited by 268Muscle metabolism and nutritionMuscle Physiology and DisordersCardiovascular and exercise physiology

The DOI matches its Crossref record; 24 of the 25 references it cites were found in a registry or an index.

Myofibrillar and collagen protein synthesis in human skeletal muscle in young men after maximal shortening and lengthening contractions

Moore, Daniel R., Phillips, Stuart M., Babraj, John A., Smith, Kenneth, Rennie, Michael J.·2005·American Journal of Physiology-Endocrinology and Metabolism
DOI 10.1152/ajpendo.00387.2004
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Abstract

We aimed to determine whether there were differences in the extent and time course of skeletal muscle myofibrillar protein synthesis (MPS) and muscle collagen protein synthesis (CPS) in human skeletal muscle in an 8.5-h period after bouts of maximal muscle shortening (SC; average peak torque = 225 +/- 7 N.m, means +/- SE) or lengthening contractions (LC; average peak torque = 299 +/- 18 N.m) with equivalent work performed in each mode. Eight healthy young men (21.9 +/- 0.6 yr, body mass index 24.9 +/- 1.3 kg/m2) performed 6 sets of 10 maximal unilateral LC of the knee extensors on an isokinetic dynamometer. With the contralateral leg, they then performed 6 sets of maximal unilateral SC with work matched to the total work performed during LC (10.9 +/- 0.7 vs. 10.9 +/- 0.8 kJ, P = 0.83). After exercise, the participants consumed small intermittent meals to provide 0.1 g.kg(-1).h(-1) of protein and carbohydrate. Prior exercise elevated MPS above rest in both conditions, but there was a more rapid rise after LC (P < 0.01). The increases (P < 0.001) in CPS above rest were identical for both SC and LC and likely represent a remodeling of the myofibrillar basement membrane. Therefore, a more rapid rise in MPS after maximal LC could translate into greater protein accretion and muscle hypertrophy during chronic resistance training utilizing maximal LC.

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Crossref · 10.1152/ajpendo.00387.2004

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Metadata

Authors
Moore, D. R., Phillips, S. M., Babraj, J. A., Smith, K., & Rennie, M. J.
Affiliations
  • McMaster University (CA)
  • University of Dundee (GB)
  • University of Nottingham (GB)
ORCID
Venue
American Journal of Physiology-Endocrinology and Metabolism
Publisher
American Physiological Society
Published
2005-06
Volume
288
Issue
6
Pages
E1153-E1159
ISSN
  • 0193-1849 (ISSN-L)
  • 1522-1555
DOI
10.1152/ajpendo.00387.2004
OpenAlex
W2125844006
Cited by
268
References
25
Citations by year
2026: 10 · 2025: 8 · 2024: 8 · 2023: 10 · 2022: 5 · 2021: 16 · 2020: 13 · 2019: 15 · 2018: 7 · 2017: 21 · 2016: 15 · 2015: 15 · 2014: 13 · 2013: 14 · 2012: 17
FWCI
3.83
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Endocrinology and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
Keywords
myofibrillar protein synthesis, skeletal muscle, eccentric contraction, shortening contractions, muscle hypertrophy, muscle remodeling, resistance training, knee extensors
MeSH terms
Adult, Amino Acids, Blood Chemical Analysis, Blood Glucose, Collagen, Histocytochemistry, Humans, Insulin, Leg, Male, Muscle Contraction, Muscle Proteins, Myofibrils, Oxygen Consumption, Exercise, Muscle, Skeletal

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