The "sprinter gene" is the most oversold result in consumer genetics.
Why this topic Strength training went mainstream at the same time as running.
Solid lines are connections this site curates. Dashed lines mean the two ends share a research paper — worth knowing, and not a claim that one explains the other.
Counted in Europe PMC, where the title or abstract names both this topic and that rsID. The number is papers, not evidence of a cause.
FTO
Menarche (age at onset)
97 papers →ACTN3
Muscle fiber type ("sprinter gene")
36 papers →BDNF
Smoking behavior
27 papers →FTO
Obesity
15 papers →FTO
Type 2 diabetes
10 papers →APOE
Lewy body disease
9 papers →MC4R
Waist circumference and related phenotypes
7 papers →MTHFR
Folate metabolism (MTHFR C677T)
7 papers →ALDH2
Alcohol flush reaction
7 papers →HFE
Iron overload risk (HFE H63D)
5 papers →HLA-DQA2
Crohn's disease
5 papers →GC
Vitamin D levels
5 papers →OPRM1
Opioid receptor sensitivity
4 papers →APOA5
Triglyceride levels
4 papers →FTO
Obesity-related traits
4 papers →NLRC5
HDL cholesterol
3 papers →LEPR
C-reactive protein
3 papers →ACE
Angiotensin-converting enzyme activity
3 papers →MCM6 / LCT
Lactose tolerance
3 papers →GCKR
Uric acid levels
3 papers →GNPDA2
Obesity
2 papers →ADH1B
Alcohol metabolism speed
2 papers →ACADS
Metabolite levels
2 papers →CPS1
Metabolic traits
2 papers →ACADL
Metabolite levels
2 papers →TRIB1
Triglycerides
2 papers →PROX1
Psoriasis or type 2 diabetes (trans-disease meta-analysis)(opposite effect)
2 papers →LRP5
Bone mineral density
2 papers →CETP
HDL cholesterol
2 papers →LPA
Coronary heart disease
2 papers →EDN1
Circulating vasoactive peptide levels
2 papers →SCD
Metabolic traits
2 papers →FTO
Body mass index
2 papers →near MC4R
Childhood obesity
2 papers →SLC16A9
Metabolic traits
2 papers →TRHR
Body mass (lean)
2 papers →ETFDH
Metabolite levels
2 papers →ELOVL2
Metabolic traits
2 papers →NRXN3
Waist circumference
1 paper →TAS2R38
Bitter taste perception (TAS2R38 position 296)
1 paper →LPA
Parental lifespan (LPA, lipoprotein(a))
1 paper →CHRNA3
Smoking behavior
1 paper →CDC123
Type 2 diabetes
1 paper →near MRPS30
Breast cancer
1 paper →BDNF
Body mass index
1 paper →SLC30A8
Proinsulin levels
1 paper →GIPR
Body mass index (SNP x SNP interaction)
1 paper →ADCY3
Body mass index
1 paper →SHBG
Testosterone levels
1 paper →IGF2BP2
Type 2 diabetes
1 paper →ABCG2
Gout
1 paper →FTO
Obesity
1 paper →ATP2B1
Blood pressure
1 paper →FADS2
QT interval
1 paper →GCK
Glycated hemoglobin levels
1 paper →ICAM1
Soluble ICAM-1
1 paper →TGFB1
Colorectal cancer
1 paper →MTHFR
Folate metabolism (MTHFR A1298C)
1 paper →ADIPOQ
Adiponectin levels
1 paper →ABCA1
HDL cholesterol
1 paper →HPR
LDL cholesterol
1 paper →ESR1
Breast cancer
1 paper →AGER
Pulmonary function
1 paper →IL6
C-reactive protein
1 paper →DAP
Ulcerative colitis
1 paper →ZDHHC11
Pancreatic cancer
1 paper →TERT
Lung adenocarcinoma
1 paper →NEGR1
Obesity
1 paper →SLC18A1
Triglycerides
1 paper →ESR1
Breast cancer
1 paper →DHCR7
Systemic lupus erythematosus
1 paper →LSP1
Breast cancer
1 paper →TERT
Serum prostate-specific antigen levels
1 paper →ANKRD55
Waist-to-hip ratio adjusted for body mass index
1 paper →INSR
Thyroid hormone levels
1 paper →ESR1
Bone mineral density (spine)
1 paper →KCNJ11
Type 2 diabetes
1 paper →ICAM1
Soluble ICAM-1
1 paper →PTPRK
Celiac disease
1 paper →G6PC2
Fasting plasma glucose
1 paper →IGF1
Height
1 paper →SEC16B
Body mass index
1 paper →F5
Blood clotting risk (Factor V Leiden)
1 paper →PCSK1
Proinsulin levels
1 paper →DUSP10
Colorectal cancer
1 paper →APOB
Cholesterol, total
1 paper →POU5F1B
Prostate cancer
1 paper →TAS2R38
Bitter taste perception (PTC/PROP tasting)
1 paper →ZBTB40
Bone mineral density (spine)
1 paper →CYP1A2
Caffeine metabolism
1 paper →SFRS10
Body mass index
1 paper →GCKR
Crohn's disease
1 paper →TCF7L2
Type 2 diabetes
1 paper →IL29
Chronic hepatitis C infection
1 paper →SLC22A3
Prostate cancer
1 paper →HBS1L
Red blood cell traits
1 paper →ZNF259
Triglyceride levels
1 paper →TFAP2B
Adiposity
1 paper →Europe PMC, title and abstract only, searched for “muscle fiber type”, “physical activity”, “athletic performance”, “exercise capacity” alongside each published rsID. Full text was not counted: it returns every paper with an rsID buried in a supplementary table. Recounted monthly.
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Exercise and muscle. MyGeneLog™. https://www.mygenelog.com/topics/exercise
Exercise and muscle is this site's topic page for muscle-performance genetics — including the "sprinter gene," the single most oversold result in consumer genetics.
It is real as a variant, but the claims made about it are the most oversold result in consumer genetics. A single gene does not make an athlete, and this topic exists partly to say so plainly.
Strength training went mainstream at the same time running did, and both trends now come with genetic claims attached that deserve the same scrutiny.
Europe PMC is searched for muscle fiber type, physical activity, athletic performance or exercise capacity appearing in a paper's title or abstract alongside a published rsID, recounted every month.