The goal of this article is to understand contralateral and ipsilateral loading, how to set-up loaded carries, electromyography activity during exercises, and how to apply these exercises into the strength training program.

The Strength and Conditioning Journal is the professional journal for strength coaches, personal trainers, physical therapists, athletic trainers, and other health professionals working in the strength and conditioning field. The journal's mission is to publish articles that report both the practical applications of research findings and the knowledge gained by experienced professionals.

The purpose of this article is to discuss the different opinions regarding the validity of early sport specialization as opposed to diversification, specifically the effect these two methods have on injuries, motor development, skill acquisition, and social and psychological aspects.

This article provides high school strength and conditioning coaches with a comprehensive guide for implementing plyometric training for high school athletes effectively.

This article will examine the physical demands of soccer players and discuss why repeated sprint ability (RSA) is considered highly important in the performance of these athletes.

The purpose of this article is to justify the importance and advantage to properly incorporate upper body power (UBP) training in Mixed Martial Arts (MMA) athletes.

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.

This award is given to a TSAC-Facilitator who has made noteworthy contributions to the tactical field of strength and conditioning. Main job function (75% of time) must be in an active role within the military, law enforcement, or emergency services (firefighter/EMS) with a secondary job of leading strength and conditioning program for your agency/department.

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 strongly suggest and offer a pragmatic and stepwise approach that takes into account the ideas and concepts of shared decision making that allows for the “best practices,” pre-participation screenings, evaluations, and stratification flow charts for safe and effective return to play for athletes.