Check out this article by Science Daily, topic: how endurance training changes your genes-
“Regular endurance training is very beneficial to health and wellbeing, and can be used to prevent cardiovascular disease, diabetes, obesity and other such conditions. However, just how this works on a molecular level is not fully known.
Researchers at Karolinska Institutet have now analyzed RNA, the molecular copies of the DNA-sequence, in muscle tissue before and after endurance training. They found approximately 3400 RNA variants, associated with 2600 genes, that changed in response to training. One implication of the study is that training can induce the same gene to increase the production of one RNA variant and reduce that of another. According to the researchers, this can mean that genes can change function as a result of exercise and, for example, start to promote the production of certain protein variants over others.”
For the full article, check the link below:
https://www.sciencedaily.com/releases/2016/09/160923083555.htm
(Reproduced under fair use and with credit)