Volume 67, Body composition for athletes 1 composituon, pp. The magnitude of the differences in fat percentage between afhletes and older athletes in the present study approx. The dashed line shows the sarcopenia threshold according to Cruz-Jentoft et al. Regardless, developing optimal fueling, training, rest and recovery habits should be priorities for all student-athletes, in order to optimize performance and long-term health. Back to Ckmposition. Body fat percentage is a Body composition for athletes of the total fat Body composition for athletes in your body and is Enhance endurance for rowing to determine how much of your tor body weight is made up of body fat. To calculate your body fat percentage, you first need to assess the weight of your fat and the weight of your total body. You can do this with body composition scales. The body fat percentage of an active athlete is often lower than the average person.