The FITNESSGRAM is the national health-related fitness assessment adopted by the Presidential Youth Fitness Program and is the most widely used children's fitness assessment in the world. It serves as a student-centered assessment, reporting, and educational tool used to promote children's health-related fitness and activity levels. Each of the test items was selected to assess important aspects of a student's health-related fitness, not skill or agility. Students are not compared to each other, but rather to criterion-referenced Healthy Fitness Zone standards, carefully established for each age and gender, that indicate good health. These standards were selected through years of research by experts in the fields of exercise science, kinesiology, and physical fitness. Descriptions on how these criterion-referenced standards were created and interpreted can be found in the FITNESSGRAM Reference Guide below.