Centers for Disease Control and Prevention - National public health agency under The Department of Health and Human Services
Google Scholar - Free search engine that indexes full-text scholarly journal articles, books and more
MedlinePlus - National Library of Medicine (NLM)
PEDro - Physiotherapy Evidence Database with over 54,000 randomized trials to search from
PMC PubMed Central - U.S. National Institutes of Health's National Library of Medicine (NIH/NLM)
Zygote Body - 3D anatomy animation from muscle tissues to blood vessels
Journals
Archives of Physiotherapy (BMC) - Full text: 2015 (Vol. 5) to present
BioMed Research International - Full text: 01/01/2006 to present
BMC Musculoskeletal Disorders - Full text: 2009 (Vol. 10) to present
BMC Sports Science, Medicine & Rehabilitation - Full text: 2009 (Vol. 1) to present, some exceptions
Evidence-based Complementary & Alternative Medicine (eCAM) - Full text: 03/01/2008 to present
Journal of Exercise Rehabilitation - Full text: 2013 to present
Journal of Personalized Medicine - Full text: 2011 (Vol. 1, no. 1) to present
PLoS ONE - Full text: 01/01/2008 to present