When choosing a performance coach, credentials tell you what a coach actually knows — not just what they claim. Two certifications appear consistently among the most rigorous sports performance professionals worldwide: ATC and CSCS. Here's a clear breakdown of each.
What is an ATC (Athletic Trainer, Certified)?
Awarded by the Board of Certification (BOC, USA). Requires completion of an accredited graduate-level Athletic Training program and passing a comprehensive board examination covering clinical, organizational, and professional foundations.
Athletic trainers are sports medicine professionals specializing in the prevention, recognition, and treatment of athletic injuries. The ATC credential means a coach has been tested on:
- Injury prevention and risk management — identifying and reducing factors that cause injury before they become problems
- Orthopedic assessment and evaluation — understanding joint mechanics, tissue stress, and structural dysfunction
- Movement dysfunction identification — seeing compensations, asymmetries, and patterns that increase injury risk
- Clinical intervention and rehabilitation — guiding athletes through recovery with evidence-based protocols
For athletes, this means a coach with an ATC credential understands your body at a structural, clinical level — not just how to train hard, but how to train safely and sustainably.
What is a CSCS (Certified Strength and Conditioning Specialist)?
Awarded by the National Strength and Conditioning Association (NSCA, USA). Requires a bachelor's degree in a relevant field and passing a two-part exam covering scientific foundations (anatomy, physiology, biomechanics, nutrition) and practical/applied knowledge (exercise technique, program design, testing and evaluation).
The CSCS is the gold standard for coaches who design athletic training programs. It certifies knowledge in:
- Periodization — structuring training loads intelligently over time to peak at the right moments
- Strength and power development — building the force output athletes need to perform in their sport
- Speed and agility training — developing movement efficiency for sport-specific demands
- Program design for athletes — building individual plans based on sport, position, goals, and current capacity
- Testing and evaluation protocols — measuring performance objectively to guide programming decisions
Why credentials matter for athlete training
Not all coaches have formal training in exercise science or sports medicine. Some coaches are excellent despite limited formal credentials — experience and intuition are real. But credentials signal something specific: this coach has been tested, by an external body, on a defined body of scientific knowledge.
For performance coaching — where the goal is measurable improvement in athletic output under competitive conditions — working with a credentialed professional significantly reduces risk and increases the probability your programming is grounded in current evidence.
This matters most when stakes are high: competition preparation, return from injury, long-term athletic development.
What to expect from a coach who holds both
A coach holding both ATC and CSCS has a rare combination of expertise that most coaches have only one half of:
- The clinical eye to assess your body structurally — identifying what's limiting you and what could hurt you
- The programming science to systematically develop the physical qualities your sport demands
- The ability to integrate both — building training that pushes performance forward without creating injury risk
This is the foundation of performance coaching that produces durable results: not just training hard, but training intelligently.