This article defines and reviews the allostatic load theory in tactical personnel.

Tom Williams’ journey to Head of Performance and Sport Science for Major League Soccer (MLS) powerhouse, the Los Angeles (LA) Galaxy, began at a crossroads: pursue traditional coaching or medical pathways. As a soccer “Swiss Army knife,” he embraced early sport science alongside coaching, building a career defined by collaboration and innovation. At the Galaxy, Williams is part of a web of support that uses rich data storytelling tailored to stakeholders and players, guiding decisions and infusing value in every encounter. This system drives their three key pillars: winning championships — including their recent record-breaking sixth MLS Cup — developing a robust academy pipeline, and leading innovation. In MLS’s “cultural melting pot,” Williams balances diverse backgrounds and short-term demands like fixture congestion while employing sustainable long-term strategies. With a unique full-time cognitive department and creative approaches like dodgeball warm-ups, he combines trust and ingenuity to elevate performance and presents a blueprint for those exploring emerging sport science. Reach out to Tom on LinkedIn: @tom-williams and X/Twitter: @Williams26Tom | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Did you know MLS has a newly mandated Certified Performance and Sport Scientist® (CPSS®) role? Engage with NSCA’s Pro Sport Partner, the Professional Soccer Performance Association (PSPA), on social media to learn more: Instagram: @pspa_performance X/Twitter: @PSPA_perform LinkedIn: @professional-soccer-performance-association

The purpose of this article is to give an overview and theoretical framework on the concept of periodized nutrition—with an emphasis on adequate carbohydrate intake to enhance performance.

Lanier Coleman coaches from a simple truth: intent drives intensity. Now in his role as Assistant Strength and Conditioning Coach for the National Football League (NFL) Jacksonville Jaguars, Coleman brings the same determination he embodied as a collegiate defensive lineman. He shares how early adversity shaped his standards, teaching him to lead with discipline, cultivate deeper relationships, and “build a fire” in every athlete he coaches. During his coaching tenure at Florida State University, mental and emotional endurance became cornerstones of team development — these are lessons he now carries into professional football. Coleman describes the shift from building collegiate foundations to coaching with precision at the NFL level, where he fine-tunes elite qualities to manage injury risk. He also stresses the importance of unified performance staffs to support athletes through this fast-paced and demanding sport. Gain inspiration to strengthen daily purpose, be a spark in your facility, and support athlete readiness across high-performance environments. Reach out to Lanier via Instagram: @l_coleman98 | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Join the NSCA Football Special Interest Group (SIG) and explore 24 other specialized communities designed to support your development on the Special Interest Groups page.

Expectations for strength and conditioning coaches now extend far beyond the weight room. Athletes and sport coaches demand better data, deeper insight, and stronger performance. Faith Brown, Associate Director of Strength and Conditioning at George Mason University, supports women’s basketball and volleyball while collaborating with the Patriot Performance Lab. Brown describes balancing teams, testing, and athlete monitoring as a “circus act.” At the heart of her coaching is one goal: be the coach she wishes she had as a college track athlete. She demonstrates ways strength and conditioning coaches can contribute as scientists, creating impact and value outside the weight room walls. Brown shares how GPS, heart rate monitoring, and force plates support workload monitoring. However, she believes that technology should only be used when it answers a real question. Learn how to turn data into better training decisions, translate sport science so sport coaches buy in, and reach out to other coaches to refine your program. Connect with Faith on Instagram: @faithsabrown, LinkedIn: @faith-brown, or by email: fbrown20@gmu.edu | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs From the Episode: Explore NSCA’s Essentials of Sport Science, a foundational text defining the field and the role of sport scientists in high-performance environments. It also supports preparation for the Certified Performance and Sport Scientist® (CPSS®) certification exam.

This episode features Glenn Revell, the Head Strength and Conditioning Coach at Central Catholic High School in San Antonio, TX. “Coach Rev” shares insights and advice with NSCA Coaching and Sport Science Program Manager, Eric McMahon, from his transition to high school strength and conditioning from the college setting. This is a great episode for all coaches, teachers, and leaders to realize their value and impact within their community. Tune in to learn about important areas to develop knowledge and skills outside of the traditional strength and conditioning education. Find Glenn on Twitter: @glennrevell | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Football is evolving fast, and the coaches who keep pace are the ones who control what they can and win the little details. Ted Rath, Director of Sports Performance for the New Orleans Saints, reflects on over 15 years in the National Football League (NFL). He explains how training times, availability, and sheer athleticism have shifted with the game's expansion. Rath makes the case for gaining a well-rounded experience by coaching different sports, seeking knowledge, and being patient on your path. He also shares his linear progression approach to sport science that keeps new tools actionable and avoids technology overload. With players now arriving more educated and invested in their data, creating understanding and buy-in remains essential. Rath reveals that his coaching philosophy and culture starts with “leading yourself,” emphasizing ownership and helping others. Apply his perspective to protect availability, dial in the little details, and integrate sport science with purpose. Reach out to Ted on Instagram: @tedrathstrengthcoach | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Catch Ted’s session, “The Future of Training in Professional Football,” at the 2026 NSCA National Conference in New Orleans, July 8–11. Sign up early and save at NSCA.com/NSCACon.

In this episode, we catch up with 2014 NSCA Assistant College Strength and Conditioning Coach of the Year, Caitlin Quinn, about her current position at Toyota Racing. Quinn shares her path from working for over a decade in collegiate athletics at Florida State University to taking a leap into unfamiliar territory in National Association for Stock Car Auto Racing (NASCAR) with NSCA Coaching and Sport Science Program Manager, Eric McMahon. Learn about her needs analysis for working with youth developmental drivers, as well as physiological, behavioral, and nutritional factors that impact racing performance. This episode shares an alternative view on strength and conditioning culture and the expectations that we place on ourselves as coaches. Quinn opens up about creating harmony between professional and personal lives, as well as seeking out the best environment to continue development as strength and conditioning professionals. You can connect with Caitlin on Instagram: @thequinn.44 | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

In this episode, Lilly Bernardi, Assistant Strength and Conditioning Coach at Hofstra University, talks to Eric McMahon, the NSCA Coaching and Sport Science Program Manager, about her journey from being an athlete to becoming a coach. Bernardi shares sentiments over losing her senior lacrosse season as a college athlete during the COVID-19 pandemic, and how it has fueled her motivational approach in coaching. The episode highlights the importance of building confidence as a young professional and adopting a growth mindset for career development. Additionally, the conversation delves into social media etiquette for coaches in the age of information sharing. Connect with Lilly on Instagram: @lilly_bernardi1 or by email: lilly.a.bernardi@hofstra.edu| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This article is part of a continuing series on practical, evidence-based approaches to reducing the risk of injury while developing tactical strength and conditioning.