Before implementing an agility training program, baseline measures of change of direction ability should be assessed. This article presents norms for three tests that can be used to assess change of direction ability.

Annette Zapp, Lieutenant Firefighter in Chicago, talks to the Former NSCA Head Strength and Conditioning Coach, Scott Caulfield, about strength and conditioning in the firefighting niche. Topics under discussion include the perks of being a firefighter who is also a Certified Strength and Conditioning Specialist® (CSCS®) and Tactical Strength and Conditioning Facilitator® (TSAC-F®), the typical lifestyles and attitudes of firefighters in general, and common issues that they face both physically and mentally. Find Annette on Twitter: @FireSQFitness or Instagram: @FireSQFitness

For Keith Swift, coaching is completely effort based, but it starts with camaraderie and education. As Director of Strength and Conditioning at Wofford College, his philosophy is clear: educate, heal, and enhance. While playing collegiate football and studying exercise science, Swift learned early to question the “why” behind training and encourages his student-athletes to do the same. At an academically rigorous institution, his educational focus fits right in, fostering curiosity, technical precision, and peer coaching. Swift shares how his experiences across professional baseball, the private sector, and collegiate programs each shaped his foundation while making it his own. Amid collegiate challenges — from the National Collegiate Athletic Association (NCAA) transfer portal to the growing authority of student-athletes — Swift holds firm that “there is no substitute for hard work.” His goal is simple: help student-athletes leave with both a degree and a championship ring, setting them up for success in sport and life. Reach out to Coach Swift on Instagram: @worqueowt and @wofford_strength, Twitter/X: @CoachSwift93, LinkedIn: @keithswift, or by email: swiftkd@wofford.edu | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Discover how salaries have evolved across collegiate athletics and other work settings in strength and conditioning in the 2025 NSCA Salary Survey at NSCA.com/Salary.

The third and final article in this series will introduce the practical and technical elements of heart rate variability (HRV) monitoring in greater depth and detail.

This article will analyze and compare squats with different loading positions to draw out practical applications for the personal trainer.

This Personal Trainers Quarterly article explains why personal trainers should understand how GLP-1 medications work. Visit NSCA online to read more on health science and fitness news.

Acceleration and maximal velocity are two factors that are key for any position in football and can determine success in many situations out on the field. This article will review several aspects of sprint mechanics and training to enhance linear (straight-ahead) speed for football players.

Learn about the emerging field of biomechanics in professional baseball from Georgia Giblin, the Director of Performance Science for the Detroit Tigers Major League Baseball (MLB) team. Giblin shares her professional journey with NSCA Coaching and Sport Science Program Manager, Eric McMahon, from working with Olympic athletes in Australia to educating coaches on emerging technology tools within MLB. This episode features discussion on the recent growth of athletic performance departments, the current state of sport science in the United States, and the helpful role of strength and conditioning coaches in supporting sport science initiatives. Connect with Georgia on Twitter: @GeorgiaGiblin| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Sam Moore’s path into sport science is defined by taking risks and chasing meaningful questions. After a devastating knee injury as a collegiate athlete, Moore not only returned to compete, but she also discovered her calling in strength and conditioning. She recounts her coaching, sport science, and hybrid roles prior to leaving a full-time position to pursue her PhD at the University of North Carolina at Chapel Hill. Moore describes sport science as problem-solving and drawing evidence across disciplines to drive innovation. She discusses her research on female athlete availability in elite settings, including nuances like body composition, recovery, and high speed exposure in training. Moore advises young professionals to remain open-minded, pitch their ideal position if it does not exist, and go “all in”— knowing one decision does not define forever. Whether you are a coach or researcher, this episode delivers real-world insights on navigating your career with courage and curiosity. Connect with Sam on Instagram: @sammoorestrong and Twitter/X: @SamMooreStrong | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs

In this episode, Lilly Bernardi, Assistant Strength and Conditioning Coach at Hofstra University, talks to Eric McMahon, the NSCA Coaching and Sport Science Program Manager, about her journey from being an athlete to becoming a coach. Bernardi shares sentiments over losing her senior lacrosse season as a college athlete during the COVID-19 pandemic, and how it has fueled her motivational approach in coaching. The episode highlights the importance of building confidence as a young professional and adopting a growth mindset for career development. Additionally, the conversation delves into social media etiquette for coaches in the age of information sharing. Connect with Lilly on Instagram: @lilly_bernardi1 or by email: lilly.a.bernardi@hofstra.edu| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs