http://acsmsummit.org/
www.muscleandmotion.com/multifitHomePage.aspx
www.coreperformance.com/
www.coreperformance.com/about/
http://www.acefitness.org/getcertified/default.aspx
http://www.cdc.gov/physicalactivity/everyone/guidelines/adults.html
http://www.humankinetics.com/ppOSHF
http://www.exerciseprolive.com/
http://www.humankinetics.com/
http://espn.go.com/trainingroom/
http://go4life.nia.nih.gov/
http://www.nia.nih.gov/
http://www.exercisebiology.com/
http://www.healthline.com/
http://www.crossfit.com/