Evidence map›Paper›PMID 19346981›Full record

ArticleMedicine and science in sports and exercise2009

Myostatin and follistatin polymorphisms interact with muscle phenotypes and ethnicity.

Matthew A Kostek, Theodore J Angelopoulos, Priscilla M Clarkson, Paul M Gordon, Niall M Moyna, Paul S Visich, Robert F Zoeller, Thomas B Price, Richard L Seip, Paul D Thompson and 4 more

Open access · greenAbstract read
In one paragraph

Article in Medicine and science in sports and exercise, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Genes · 2025
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  11. An intron variant of the GLI family zinc finger 3 (GLI3) gene differentiates resistance training-induced muscle fiber hypertrophy in younger men.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
  12. Myostatin A55T Genotype is Associated with Strength Recovery Following Exercise-Induced Muscle Damage.International journal of environmental research and public health · 2020
    Article
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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

14 authors at 10 institutions in 2 countries.

Matthew A KostekDepartment of Kinesiology, University of Connecticut, Storrs, CT 06269-2101, USA. Matthew.Kostek@gmail.com
Theodore J Angelopoulos
Priscilla M Clarkson
Paul M Gordon
Niall M Moyna
Paul S Visich
Robert F Zoeller
Thomas B Price
Richard L Seip
Paul D Thompson
Joseph M Devaney
Heather Gordish-Dressman
Eric P Hoffman
Linda S Pescatello
University of Connecticut · USChildren's National · USHartford Hospital · USCentral Michigan University · USFlorida Atlantic University · USSport Ireland · IEUniversity of Central Florida · USUniversity of Massachusetts Amherst · USWest Virginia University · USYale University · US

Funding

Functional SNP's Assoc with Human Muscle Size &StrengthR01NS040606 · NINDS · CHILDREN'S RESEARCH INSTITUTE · PI HOFFMAN, ERIC P · 2001 to 2004
$4.7M
NINDS NIH HHS NS40606NINDS NIH HHS R01 NS040606
6 · The paper itself

Abstract

purposeWe examined associations among myostatin (MSTN) 2379 A > G and 163 G > A and follistatin (FST) -5003 A > T and -833 G > T single nucleotide polymorphisms (SNP) on the muscle size and the strength response to resistance training (RT).

methodsSubjects (n = 645, age = 24.1 +/- 0.2 yr, body mass index [BMI] = 24.2 +/- 0.2 kg x m(-2)) self-disclosed themselves as Caucasian (78.9%), African American (3.6%), Asian (8.4%), Hispanic (5.0%), or Other (4.2%). They were genotyped for MSTN 2379 A > G (n = 645), MSTN 163 G > A (n = 639), FST -5003 A > T (n = 580), and FST -833 G > T (n = 603). We assessed dynamic (one repetition maximum [1RM]) and isometric (maximum voluntary contraction [MVC]) muscle strength and size (cross-sectional area [CSA]) of the elbow flexors before and after 12 wk of unilateral upper-arm RT. Repeated-measures ANCOVA tested associations among genetic variants and muscle phenotypes with age and BMI as covariates.

resultsBaseline MVC was greater among African Americans who were carriers of the MSTN G(2379) allele (AG/GG, n = 15) than the A2379A homozygotes (n = 8; 64.2 +/- 6.8 vs 49.8 +/- 8.7 kg). African Americans who were carriers of the FST T(-5003) allele (n = 12) had greater baseline 1RM (11.9 +/- 0.7 vs 8.8 +/- 0.5 kg) and CSA (24.4 +/- 1.3 vs 19.1 +/- 1.2 cm(2)) than African Americans with the A-5003A genotype (n = 14; P < 0.05). No MSTN or FST genotype and muscle phenotype associations were found among the other ethnic groups (P >or= 0.05).

conclusionMSTN 2379 A > G and FST -5003 A > T were associated with baseline muscle strength and size among African Americans only. These ethnic-specific associations are hypothesis generating and should be confirmed in a larger sample of African Americans.

Indexed as

AdultAnthropometryCross-Sectional StudiesEthnicityExerciseFollistatinHumansMagnetic Resonance ImagingMuscle, SkeletalMyostatinPolymorphism, Single NucleotideResistance TrainingYoung AdultFollistatinMyostatin

Identifiers

PMID19346981
PMCPMC4147954
OpenAlexW2110680815

What OpenQuestion holds

Textmetadata
LicenceTDM
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.