Many of today's successful enterprises, on the other hand, have avoided such contentious recommendations and instead merely declare that certain genetic markers provide benefits or drawbacks for endurance or "power" sports (which generally involve quick bursts of speed). The issue is that some folks fall somewhere in the center. Their genes don't help or hinder them, but they aren't very strong either. If you are one of these people, don't worry about it. The best option for you is to not focus on genetics at all. Instead, work on your training program and diet. If you do well on both counts, then you will be able to compete at an athletic level without worrying about what DNA you were born with. There are no mandatory genetic tests before entering any sport. If you want to know more about your genetic makeup, here are some options: Your doctor can offer advice based on your symptoms and tell you how you compare with other patients. If you have no symptoms that indicate a problem, however, there is no need to seek this out informationally. Genetic counselors can help identify mutations in specific genes that may affect your ability to perform sports energetically. However, these counselors are not medical professionals and they cannot diagnose diseases or predict future health problems. They can only give you information about your own genotype and recommend strategies for you to consider as you make decisions about your life.