Kids N Fitness for All Learning Levels (IMAGE) Elsevier Caption Kids N Fitness for All Learning Levels was adapted from a variation of KNF created for children aged 3−7 years and featured training topics including an overview of each class, program activities unique to KNF4ALL, and strategies for working with children with autism spectrum disorder. Credit Kids N Fitness© Usage Restrictions Please include attribution License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.