The expectation is you exercise and get fit. However, not always the case!
What exactly do these SNPs mean? Those who had 19 or more SNPs improved there fitness by more than 3 times compared to those who only had 9 or less SNPs. One of the SNPs located on the ACSL1 gene was shown to have a high effect on exercise. It resulted in as much as 6 percent in the difference between those whose fitness improved and those whose fitness didn't. This makes sense because this gene is known for playing a role in how the body metabolizes fat. Although there still has to be many more studies done on this concept it is interesting to discover that genes may effect physical ability. Within the future more studies will be done with different ethnicity's to determine SNPs that are shared and what other genes may be affected.