LINKS

• American Council of Exercise - www.acefitness.org
  
• National Strength and Conditioning Association
  www.nsca-lift.org
  
• International Dance and Exercise Association
  www.ideafit.com
  
• Vectra equipment - www.vectrafitness.com
  
• Lifefitness equipment - www.lifefitness.com

• American College of Sports Medicine