The purpose of this article is to provide an introduction to contrast training, including how it is defined, what variables are utilized, and examples of how to use it in training.

Contracted Human Performance and Optimization Coach of 2nd Ranger Battalion, 75th Ranger Regimen Jeff Carroll talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about his start in the field of strength and conditioning and his transition from professional athletes to a tactical population and setting. Topics under discussion include: Carroll’s career path, coaching professional athletes, transitioning to tactical strength and conditioning, and the future of tactical strength and conditioning.

The purpose of this article is to review the physiological determinants of police work, provide the strength and conditioning professional with an overview of comm on constraints associated with training police officers, discuss the role of autoregulated training, and provide programming recommendations for training police officers around their patrol shifts.

Do you fear public speaking? It may seem counterintuitive for coaches who command the weight room every day, but it’s more common than you’d think. On the floor with your athletes, you’re in your element, but shifting audiences to administrators can have you second-guessing. Honing your communication and public speaking skills shouldn’t be saved until you’re eyeing a promotion — Coaching & Presentation Skills Coach Jenny Rearick advises getting in as many early reps as possible. Combining her experience as a collegiate athlete, strength and conditioning coach, and corporate marketer, Jenny founded Fit to Speak to empower fitness professionals in the “sport” of public speaking. Discover concrete strategies like the BLUF method to make sure your key message is heard. Learn how to seek out low-risk scenarios that can transform your speaking skills from just getting by to getting ahead. Plus, don’t miss her simple mindset shift to ease pre-presentation nerves. Connect with Jenny on Instagram at: @fit_to_speak or online at: fit-to-speak.com | Find Eric on Instagram: @ericmcmahoncscs or LinkedIn: @ericmcmahoncscs Check out Jenny’s episodes in the new NSCA Presenter Playbook series on NSCA TV. Ready to take the big stage? Apply online to speak at a 2025 NSCA event before the May 15 deadline. BONUS: Answer Bryan Mann’s “call to arms!” Get involved locally and give back to your strength and conditioning community at NSCA.com/Volunteer

Duncan French, Vice President of Performance at UFC Performance Institute, and Bo Sandoval, Director of Strength and Conditioning, talk to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about how they holistically support around 570 Ultimate Fighting Championship (UFC) athletes and push the boundaries of the UFC Performance Institute in Las Vegas. Topics under discussion include staying open to new ideas and perspectives, being adaptable as a coach, and the different ways they support their athletes. Find Duncan on Twitter: @DuncanFrench or Instagram: @dr_duncan_french | Find Bo on Twitter: @olystrength or Instagram: @bo.sandoval | Find Scott on Instagram: @coachcaulfield

Hear from the 2023 NSCA Assistant College Coach of the Year, Gary Calcagno, from Oklahoma State University. In this episode, Calcagno shares highlights from a more than 30-year strength and conditioning career and how being resourceful as a once aspiring coach prepared him for lasting professional success with NSCA Coaching and Sport Science Program Manager, Eric McMahon. Calcagno also discusses his long history with the NSCA, recent areas of progress across the profession, and the role of quality leadership in managing a successful strength and conditioning program. You can reach Gary by email at gary.calcagno@okstate.edu | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

In this special Season 4 podcast kick-off, NSCA’s Tactical Program Manager, Nate Palin, introduces the new NSCA Coaching Program Manager, Eric McMahon. McMahon discusses how he got into strength and conditioning, transitioning into new roles and the challenges it brings, and the direction that he wants to bring the NSCA with this new position as a bridge between strength coaches and the organization. Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs | Find Nate on Instagram: @natepalin

After almost leaving the profession entirely, Ashley Kowalewski landed her role as an Assistant Strength and Conditioning Coach at the prestigious Louisiana State University. Listen as she recounts the strength and conditioning coach who inspired her as a high-level athlete at Oklahoma State University, diverting her path away from pursuing a physical therapy career. Explore how her early experience as an NSCA intern and working with adaptive sports under the United States Olympic & Paralympic Committee expanded her network and strengthened her coaching. Discover where to tap into access points that can build mentors in your corner and the importance of being relationship-oriented in a field where collaboration is key. Kowalewski also speaks about checking her ego after a difficult career experience and the challenge of starting again at the intern level. Learn her guiding principle of providing over proving and how high-quality leadership can elevate a program’s impact and staff longevity. Connect with Ashley on Instagram at: @ashleykowalewski or by email: ashk@lsu.edu | Find Eric on Instagram: @ericmcmahoncscs or LinkedIn: @ericmcmahoncscs

Coaching elite mixed martial arts (MMA) athletes demands creativity, adaptability, and a global mindset. Gavin Pratt, Senior Director of Strength and Conditioning at the Ultimate Fighting Championship (UFC) Performance Institute, shares insights from his international career. Pratt reflects on preparing athletes for the Chinese National Games and managing strength and conditioning at the world’s first MMA academy in Shanghai. Applying a systems-based approach, he tackles MMA’s unique challenges — including unpredictable training schedules, diverse personalities and backgrounds, session intensity, and load management. Driven by passion rather than prestige, Pratt emphasizes he’s never been a "tracksuit hunter" — someone motivated primarily by titles or status. He highlights MMA’s innovation potential, especially when using individualized technology based on athletes' force or velocity deficiencies. Pratt contrasts the United States’ expertise in speed, agility, and change of direction with Australia’s early adoption of sports science. He also provides valuable interview advice to help coaches communicate effectively under pressure. Discover practical strategies to elevate your coaching impact. Connect with Gavin via email at gpratt@ufc.com and on Instagram: @gav_pratt | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs If this episode sparked your interest in MMA and other combat sports, take the next step by joining the NSCA Combat Sports Special Interest Group (SIG) on LinkedIn. Connect with a global network of professionals shaping the future of performance. Inspired by Nick Barringer’s recommendation? Register early to save on 2025 NSCA Tactical Annual Training. Catch Barringer’s talk on performance bloodwork and more nuggets of wisdom.