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.

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.

Learn what it takes to become a strength and conditioning coach. Explore what strength coaches do, work environments, average salaries, and how to get started.

Most law enforcement officers are physically taxed, mentally exhausted, and emotionally overwhelmed. As such, a complexity exists with a requirement to match the need for physical fitness in a demographic that lives their lives in a potential state of general exhaustion.

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!

Congratulations to the NSCA's 2026 awardees for their dedication and contributions to the NSCA and the field of strength and conditioning.

NSCA-Certified Personal Trainers® (NSCA-CPT)® are health/fitness professionals who use an individualized approach to train clients for the primary goal of improving their personal health and fitness. Learn more about becoming a certified personal trainer with the NSCA's CPT certification! Visit NSCA.com for information on personal trainer jobs, personal training certifications, personal trainer insurance and continuing education as you pursue one of the best personal trainer certifications.

Join the 2026 NSCA Exercise Techniques & Progressions Summit in Springfield, MA, on Sept. 26. Refine cues, progressions, and training adjustments. Earn 0.8 CEUs

Various aspects of resistance training, such as specific exercises chosen, workout structure, resistance used, volume (repetitions and sets), rest intervals between sets, and training frequency, can be manipulated to mold the strength training program to best meet an endurance athlete’s goals.