May 30, 2025by Juan Gonzalez, PhD, CSCS, Jung-Il Oh, PhD, Sofia Alvarado-Valdez, Brianna Villarreal, Edgar De La Cruz, Daniela Barrera, and Nicole Trevino
The purpose of this article is to provide fitness professionals with best practices on creating a program that uses red light therapy to aid in weight loss and weight management.
Personal trainersExercise ScienceNutritionProgram design
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
Hear from Lacey Jahn, Head Strength and Conditioning Coach for the United States Marine Corps East School of Infantry. Jahn shares her unusual path into strength and conditioning with NSCA Coaching and Sport Science Program Manager, Eric McMahon, including stops in curriculum development and working as a lifeguard. Learn more about tactical strength and conditioning jobs, athletic qualities as they relate tactical performance in the military, and the how to approach attending strength and conditioning education events as a young coach.
You can reach out to Lacey on Instagram: @laceylyrla | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs
With almost one million people in the United States living with multiple sclerosis, this article aims to provide personal trainers with ideas for exercises to meet the needs of these individuals.
Personal trainersProgram designBasic Pathophysiology and Science of Health Status or Condition, Disorder, or Disease
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
Part 2 of this series on allostatic load theory will focus on how monitoring personnel holistically can contribute to a well-rounded health and performance model supporting the tactical athletes.
TSAC FacilitatorsExercise ScienceProgram designTesting and Evaluation
If the strength and conditioning field largely keeps to itself, or the knowledge base is not seen to transcend the training facility, it seems reasonable to think that this will present a problem for strength and conditioning coaches. This article examines some actions strength and conditioning coaches can take to increase the awareness of the good work they do on a daily basis.
CoachesOrganization and AdministrationProfessional Development
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.