This article highlights the scientific evidence on exercises like the seated leg extension, leg curl, and adduction machines to highlight their potential benefits on enhanced performance and potentially reducing injury risk.

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

How does a small-town boy from Mid Wales become the next NSCA President? Follow Ian Jeffreys’ inspiring journey, beginning with his introduction to the NSCA in 1989 as a professional rugby player hungry for knowledge to perform better. Listen as he recounts the thrill of his first conference and why NSCA events are so much more valuable than just what is presented on the main stage. Then, dive into Ian’s career-defining contributions to speed and agility, sparked by his reverse-engineering approach that leverages movement patterns and strong positioning to elevate game speed. Reflect on decades of evolution in our profession, including increased career paths plus the rise of technology and AI — and why they can never replace the true human heart of coaching. Lastly, learn Ian’s vision for the NSCA’s future, which involves both listening and leading to maintain the NSCA’s position as the worldwide authority in strength and conditioning. Connect with Ian by email at ian.jeffreys@nsca.com | Find Eric on Instagram: @ericmcmahoncscs or LinkedIn: @ericmcmahoncscs Join Ian’s inauguration at NSCACon 2024 in Baltimore, MD, July 10-13! Register at NSCA.com/NSCACon

Learn about a unique path into strength and conditioning from J. Aggabao, the Associate Athletic Director of Sports Performance at Santa Clara University (SCU). Aggabao shares insights on coaching pathways and hiring, with NSCA Coaching and Sport Science Program Manager, Eric McMahon, that includes service in the United States Navy, working in the National Football League (NFL), and progressing into a department leadership role at SCU. From networking in the strength and conditioning field to beyond the campus and athletic communities, this episode speaks to various career stages, from aspiring strength and conditioning coaches seeking their first jobs, to experienced professionals aiming to become effective leaders. Reach out to Coach Aggabao on Instagram: @j.aggabao, or by email at jaggabao@scu.edu | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

When collegiate athletes are also cadets, coaching requires adaptability and flexibility at its finest. In this Gatorade Performance Partner Special Episode, Scott Caulfield shares his coaching philosophy as the first Director of Strength and Conditioning at Norwich University, a senior military college. Coach Caulfield oversees 23 varsity teams and over 600 student-athletes — including Corps of Cadets members and civilians — while also serving as a campuswide resource and adjunct instructor. With field training taking precedence, he describes adapting to varying student needs, goals, and readiness levels. As a veteran and Vermont native, he reflects on returning home and the higher service component of preparing students for careers beyond sport. Coach Caulfield also brings his certified therapy dogs into the weight room, creating an “immediate barrier breakdown” that helps students feel at ease. He calls on coaches to get involved, take advantage of NSCA Foundation opportunities, and keep pushing the profession forward. Reach out to Coach Caulfield on Instagram at: @coachcaulfield, and see his weight room therapy dogs at: @atm_riv_g_therapydogs. Explore the latest from the Norwich weight room at: @norwichsc | Email Jon at: jonathan.jost@pepsico.com | Find Eric on Instagram: @ericmcmahoncscs or LinkedIn: @ericmcmahoncscs. Explore scholarships, grants, and assistantships at NSCA.com/Foundation. Apply for volunteer leadership opportunities by December 15 at NSCA.com/Volunteer. Read the free TSAC Report article on coaching philosophy to enhance communication between strength and conditioning professionals and firefighters, co-authored by Scott Caulfield. This special episode is brought to you in part by Gatorade Performance Partner. Learn more and join their community at GatoradePerformancePartner.com.

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

Brice Long, Director of Human Performance Experience at O2X, talks to the NSCA Coaching Program Manager, Eric McMahon, about O2X’s holistic approach for fire, police, military, and federal agencies. Topics under discussion include the value of training as a firefighter, physical tests and assessments in the National Guard, and being diverse in your skill sets as a coach. Find Brice on Instagram: @o2xhumanperformance or Twitter: @o2xhp | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Get to know Army Lieutenant Colonel Nick Barringer, Program Director for the United States Army-Baylor University Master’s in Nutrition. Barringer shares how he originally planned to become a strength and conditioning coach before a nutrition course inspired him to pursue dietetics. However, it was his Certified Strength and Conditioning Specialist® (CSCS®) credential that ultimately landed him his role as the first 75th Ranger Regiment (Army Rangers) Dietitian. He recounts drawing inspiration from the Navy SEALS to start the Ranger Athlete Warrior (RAW) program and seeing the Special Operations THOR3 program follow suit — laying the groundwork for the US Army Holistic Health and Fitness (H2F) system. Barringer and McMahon discuss the synergy between strength and conditioning coaches and dietitians, as well as cultural challenges and diverse training ages in tactical settings. The pair also stress the importance of sales and building relationships before discussing basic nutrition advice and pathways into tactical and dietetics careers. Connect with Nick on Instagram at: @nickbarringer.phd.rdn or by email: nickbarringer35@gmail.com | Find Eric on Instagram: @ericmcmahoncscs or LinkedIn: @ericmcmahoncscs

In this article, Mike Nelson addresses two stubborn myths associated with increased protein intake and negative effects: kidney issues and bone loss.

The importance of recognizing a closed-chain activity lies in the fact that the motions of multiple joints are coupled. Weakness at any one joint will consequently limit performance of the entire movement.