Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0026049502000744
Exercise for Children free resource MedlinePlus Health Information https://medlineplus.gov/exerciseforchildren.html
Exercise and Physical Fitness free resource MedlinePlus Consumer Health Information https://medlineplus.gov/exerciseandphysicalfitness.html