Most deaths from bungee jumping occur because harnesses were not put on correctly. Therefore, it is important to have professionals help you put on your harness even if you are not a beginner. That means that you should go to a company or a club that specializes in bungee jumping. Make sure the club is certified by a government agency, such as the Occupational Safety and Health Administration or the British Elastic Rope Sports Association. One of the most important services clubs provide is taking your height and weight measurements. This helps them fit equipment properly. Ankle harnesses are usually secured to both legs, and they are often used in conjunction with other harnesses, especially body harnesses. When using ankle harnesses, it is best to have your body facing the line of the cord, especially when the cord becomes tight, or you could risk breaking your ankles.