American College of Sports Medicine
http://www.acsm.org

American Council on Exercise
http://www.acefitness.org/acefit/

CDC Measuring Activity Intensity
http://www.cdc.gov/physicalactivity/everyone/measuring/

CDC Physical Activity for Everyone
http://www.cdc.gov/physicalactivity/everyone/

FTC Weight Loss and Fitness Consumer Information
http://www.consumer.ftc.gov/topics/weight-loss-fitness

HelpGuide.org
http://www.helpguide.org/home-pages/exercise-fitness.htm

National Center on Health, Physical Activity and Disability
http://www.nchpad.org

Exercise Videos for Seniors or People with a Disability/Chronic Illness
http://www.nchpad.org/351/2036/Exercise~Video~List

MedlinePlus (NIH)
http://www.nlm.nih.gov/medlineplus/

Physical Activity Guidelines for Americans 2008
http://www.health.gov/paguidelines/guidelines/

President’s Challenge
http://www.presidentschallenge.org

Shape Up America
http://www.shapeup.org

 

American Academy of Pediatrics
Healthy Children
www.healthychildren.org

CDC BAM! Body and Mind (Ages 9-13)
http://www.cdc.gov/bam/

KidsHealth
www.kidshealth.org

 

CDC Strength Training for Older Adults
http://www.cdc.gov/physicalactivity/growingstronger/

Go4Life
Comprehensive exercise resource for Seniors
https://go4life.nia.nih.gov/

NIH SeniorHealth (Information and illustrations)
http://nihseniorhealth.gov/exerciseandphysicalactivityexercisestotry/