The IGF1 gene influences circulating levels of the IGF1 hormone which is necessary for muscle growth and development. Variants have been associated with benefits for strength performance. We test for two variations of the IGF1 gene (IGF1 and IGF1_2), which code for the same protein, but have a slightly different effect on the protein’s function, and ultimately on the physical trait of performance. Your FitnessGenes result will identify how your circulating IGF1 levels are affected and how this impacts on these traits.


 

Global population distribution:

Source: 1000 Genome Project.  Global averages for both sexes

IGF1: GG

50%

IGF1: AG

39%

IGF1: AA

11%

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