This excerpt from NSCA's Essentials of Tactical Strength and Conditioning explains the importance of third-party certifications on supplements in the tactical population.

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 effects of alcohol on athletic performance vary depending on quantity, demographics, and type of exercise, making it difficult to determine specific recommendations. From an athletic performance standpoint, the acute use of alcohol can influence motor skills, hydration status, aerobic performance, as well as aspects of the recovery process.

Monitoring training load is essential for determining if athletes are adapting positively or negatively to their training program. This article goes over the various measurement metrics and includes recommendations to monitor training load for football athletes.

This episode unites strength and conditioning perspectives across three continents. David Joyce and Dan Lewindon, the co-editors of High-Performance Training for Sports, discuss their new book, including the high-caliber list of expert contributors from around the world. Discussion centers on the expansion of performance environments to include new perspectives, and the increased need for professional collaboration to deliver maximally effective training programs. Learn about “Zombie Killers,” as Joyce and Lewindon share with NSCA Coaching and Sport Science Program Manager, Eric McMahon, in an episode that provides insight into everyday coaching practices. Find David on Twitter: @DavidGJoyce | Find Dan on Twitter: @DanLewindon | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

High-intensity strength training paired with explosive, high-velocity movements is suggested to enhance endurance performance. It is recommended that a practical approach be taken when implementing this model of strength training, which would involve a thorough preparatory period.

The purpose of this article is to examine components that affect speed to determine the degree that speed is governed by skill versus genetic factors.

There are many factors, both personal and environmental, that play a role in the success of a training and diet program for an individual client. This article looks at the factors to be aware of and some solutions to finding the best fit program for an individual client.

Some research has found that static stretching can have detrimental effects on subsequent performance. This is not to say that static stretching should be eliminated from an athlete’s program, but it should be sensibly incorporated into the daily training regimen since chronic stretching can enhance the range of motion around a joint and potentially improve strength and power performance.

This article presents two football-specific speed drills in detail—the single-leg box explosion and the mountain climber.