This article aims to explain why integrating multiple tests such as Anaerobic Speed Reserve (ASR), Intermittent Fitness Test (IFT), and Maximum Aerobic Speed (MAS) can provide a comprehensive evaluation of soccer players’ fitness levels and help to design effective training programs tailored to their individual needs.

Coaches can also benefit from understanding the concepts of positive and negative reinforcement and positive and negative punishment as they relate to motivation. Although coaches use a mixture of both reward and punishment, using rewards and a positive approach is arguably the best approach because it focuses on what athletes should do and what they did right.

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

Optimize readiness & resilience at the 2026 NSCA Tactical Annual Training in Orlando, FL. Apply tactical performance research hands-on, connect, & earn 2.0 CEUs.

Learn about expanding developmental pathways and career opportunities within Major League Soccer (MLS) in this episode of the NSCA Coaching Podcast. The Charlotte FC Head of Performance, Adam Parr, shares his experience with NSCA Coaching and Sport Science Program Manager, Eric McMahon, including the key relationships between strength and conditioning coaches, sport scientists, and international influences on the growth of soccer within North America. As athletes today become more accustomed to data feedback on their performance, Parr explains the process of effectively embedding technology in the team setting. Listen in to learn more about how you can break into a growing area of the field in professional soccer. You can connect with Adam on Instagram: @aparrfitness or LinkedIn: @adamcparr| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

High-Intensity Resistance and High-Impact Training and Bone Mineral Density—a Narrative Review: Part 1

Bert Sorin, President and Co-Owner of Sorinex Exercise Equipment, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about Bert Sorin’s upbringing and his experience being a collegiate athlete, how Sorinex is contributing to the field, and how TSAC is continuing to grow and improve.

This excerpt briefly explains the steps to create a resistance training plan for endurance athletes.

The NSCA Coaches Conference joins NSCACon, a key event for strength and conditioning coaches. Explore career insights, recertification, and expanded awards ceremony.