Position statements are official statements of the NSCA on topics related to strength and conditioning and exercise science. All NSCA Position Statements are published in the Journal of Strength and Conditioning Research® and free to the public.

Certified Special Population Specialists® (CSPS®) are fitness professionals who, using an individualized approach, assess, motivate, educate, and train special population clients, including those with chronic and temporary health conditions. Become a certified personal trainer, then pursue this advanced personal trainer certification. CSPS® individuals train clients with medical conditions such as metabolic disease, autoimmune disorders, cancer and cardiac arrest, and address the needs of prenatal and postpartum personal training clients.

Discover salary trends and average earnings for strength and conditioning coaches and sport scientists in the 2025 NSCA Salary Survey. Get your free summary now.

Learn about sport science careers and the CPSS certification program​.

Join the 2026 NSCA Training Prescriptions for Overhead Athletes Summit in San Diego on March 28. Learn advanced biomechanics, train hands-on, and earn 0.8 CEUs.

This article will provide some conditions and standards with specific tools personal trainers may consider using in their initial interview with potential clients.

Certified Strength and Conditioning Specialists® (CSCS®) are professionals who apply scientific knowledge to train athletes for the primary goal of improving athletic performance. Learn more about becoming a strength and conditioning coach with the NSCA certification! Visit NSCA.com for more information on strength and conditioning jobs, strength and conditioning internships, continuing education and CEUs.

There is no argument that periodization is successful, and that different models can be applied with success in different fashions. The question of how shift work really affects a periodized program—more specifically firefighter shift work—is less clear.

The periodization of training is facilitated by a hierarchical structure that allows for several distinct interrelated levels that can be used in the planning process. Each level of the periodization process should be based on the training goals established for the athlete or team.

Tactical Strength and Conditioning Facilitators® are professionals in tactical fields (e.g., military, fire and rescue, law enforcement and other professions) who apply scientific knowledge to improve performance, promote wellness and decrease injury risk. These Tactical Strength and Conditioning Facilitators help their peers improve on-the-job physical performance and reduce time off due to injury. Learn more about expanding your professional expertise with NSCA’s TSAC-F® certification!