The catecholamines—primarily epinephrine, but also norepinephrine and dopamine—are secreted by the adrenal medulla and are important for the acute expression of strength and power because the hormones act as central motor stimulators and peripheral vascular dilators to enhance enzyme systems and calcium release in muscle.

This article briefly explains the two principles necessary for muscle growth.

The goal of this brief review is to describe what classifies as high-intensity interval training (HIIT) and summarize the potential benefits for various populations: athletic, general, and clinical.

This article seeks to explain monitoring body composition, including how to assess it properly for an accurate evaluation to minimize errors in body fat estimation and maximize physical training.

The exerciser with 8 to 12 months of training experience can begin to include exercise complexes that combine trunk movement patterns with multijoint movements. Single-plane and multiplane movements can be performed using both open- and closed-chain exercises.

The playing field has changed in collegiate athletics, but Kaz Kazadi knows the keys to longevity. Get to know the Texas Christian University (TCU) Assistant Athletic Director of Football Human Performance, renowned for his ability to inspire athletes. Follow his roots from the Democratic Republic of Congo (DR Congo) to playing for the National Football League (NFL) Los Angeles Rams — later becoming a “roaming gladiator” in the Canadian Football League (CFL) and NFL Europe to secure tenure. As a leader in the weight room, strength and conditioning was a natural transition. He recalls choosing a graduate assistantship to embody his “long money” philosophy of purpose-driven education, networking, and positivity. Kazadi compares new Name, Image, and Likeness (NIL) policies to free agency and talent acquisition versus recruiting. Additionally, he drills decision-making and delayed gratification as players transition into adulthood. He concludes with advice for creating a coaching network and career vision. Connect with Coach Kaz by email: kaz.kazadi@tcu.edu | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs

Mary Kate Feit, Assistant Professor and Associate Director of Strength and Conditioning at Springfield College, and Adam Feit, Coordinator of Physical and Mental Performance at Springfield College and Assistant Director of Performance Nutrition at Precision Nutrition, talk to the NSCA Coaching Program Manager, Eric McMahon, about being a married couple in the world of strength and conditioning. Topics under discussion include the unique positions they hold at Springfield College, how becoming parents has changed their perspective on coaching, and why diversity is so important for the future of the field. Connect with Mary Kate via email: mfeit@springfield.edu | Find Adam on Twitter: @Adam_Feit or Instagram @aefeit | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This article explains the importance of educating and supplying firefighters with the right tools for hydration and optimal body composition to safely and effectively execute their job tasks.

This article explores what a facility-level culture may look like, identifies some of the expected benefits of purposely developing that culture, and discusses some misalignment between what coaches say they want the culture to feel like and the message the athletes are likely to receive.

This excerpt provides a brief snapshot of the use of carbohydrates in resistance training exercise sessions.