Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0091743503001981
Exercise and Physical Fitness	free resource	MedlinePlus Health Information	https://medlineplus.gov/exerciseandphysicalfitness.html
Exercise and Physical Fitness	free resource	MedlinePlus Consumer Health Information	https://medlineplus.gov/exerciseandphysicalfitness.html