Running clubs, first marathons, and a watch telling you your VO2max.
Why this topic Running is the trend of the year, and it comes with a screen full of numbers people now want explained.
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.
ACTN3
Muscle fiber type ("sprinter gene")
35 papers →CYP1A2
Caffeine metabolism
7 papers →HFE
Iron overload risk (HFE H63D)
6 papers →FTO
Type 2 diabetes
4 papers →OPRM1
Opioid receptor sensitivity
2 papers →HFE
Iron overload risk (hereditary hemochromatosis)
2 papers →MTHFR
Folate metabolism (MTHFR C677T)
2 papers →F5
Blood clotting risk (Factor V Leiden)
2 papers →BDNF
Smoking behavior
2 papers →Europe PMC, title and abstract only, searched for “endurance performance”, “endurance athletes”, “marathon runners”, “running economy”, “VO2max”, “aerobic capacity”, “exercise-induced” alongside each published rsID. Full text was not counted: it returns every paper with an rsID buried in a supplementary table. Recounted monthly.