Where to buy a fake CSCS certificate online. How much to get a copy of the Certificate Strength and Conditioning Specialist. Certified Strength and Conditioning Specialists (CSCS) are professionals who apply scientific knowledge to train athletes for the primary goal of improving athletic performance. They conduct sport-specific testing sessions, design and implement safe and effective strength training and conditioning programs and provide guidance regarding nutrition and injury prevention. Recognizing that their area of expertise is separate and distinct, CSCSs consult with and refer athletes to other professionals when appropriate.