Considering the great popularity of eccentric-based training, the purpose of this review is to first provide the scientific rationale for its use; second, summarize the eccentric-based training modalities that can be used; and finally, offer practical recommendations on how to implement eccentricbased modalities to enhance sports performance. The molecular and neural mechanisms underlying eccentric actions are partially distinct from those of concentric and isometric actions. During eccentric actions, theories suggest a strain-induced modulation of actin-myosin interactions at the crossbridge level, activation of structural protein titin, and winding of titin on actin. Eccentric acute physiological responses differ from concentric exercise responses, including variations in neuromuscular, metabolic, hormonal, and anabolic signaling. Eccentric training elicits greater improvements in muscle strength, power, and stretch-shortening cycle function compared with concentric-only or traditional resistance training. Therefore, eccentric-based training can lead to unique neuromuscular (e.g., improved coordination of motor units) and morphological (e.g., increased muscle fascicle length and enhanced distal cross-sectional area) adaptations that could play a key role in sport performance. Practitioners may implement eccentric exercises with external loads, fully eccentric-based exercises (e.g., Nordic hamstring curl), accentuated eccentric loading, flywheel resistance exercise, and plyometrics to develop specific physical adaptations in line with their goals. Eccentric work (e.g., for hamstrings) can be obtained during other exercises such as downhill running tasks, decelerations, and sprinting activities. Practitioners need to be aware that no single “silver bullet” training modality exists; consequently, practitioners should use a combination of eccentric-based training approaches with their athletes to obtain the desired adaptations.

This article is the second of a continuing series that examines pertinent and recent tactical strength and conditioning research reviews.

Paul Comfort, program leader for the Master’s degree in Strength and Conditioning at the University of Salford, talks to the NSCA Coaching Program Manager, Eric McMahon, about his desire to continuously learn through practical application and research in the field. Topics under discussion include creating the post graduate program for the University of Salford, being a founding member of the United Kingdom Strength and Conditioning Association (UKSCA), and the complexities of technology in the weight room. Find Paul on Twitter: @PaulComfort1975 or Instagram: @PaulComfort1975 | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

The National Strength and Conditioning Association (NSCA) is proud to announce the recipients of the organization’s 2024 Career and Service Awards. Given annually, the distinguished Career Awards honor individuals who have made significant contributions to the strength and conditioning community throughout their careers. Additionally, the Service Awards recognize those who have provided exceptional dedication and support to the NSCA’s journals or State and Provincial Director Program. Each winner will be formally recognized at the 2024 NSCA National Conference in Baltimore, MD, this July 10-13.

Each NSCA SIG has an executive council composed of a chair and at least two members. Applications are accepted from October 1 to December or January 15 annually. Check back during the application window for information on open positions.

This article will focus on the management of the physical training process of US Air Force Special Warfare candidates, with relevant information geared toward the specific demands seen within the first phases of a Special Warfare Operator’s development.

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.

Learn about the “Golden Age of Strength and Conditioning” from those who lived it. Former National Basketball Association (NBA) strength and conditioning coach, Chip Sigmon, joins retired longtime National Football League (NFL) strength and conditioning coach, Jerry Palmieri, on a journey back to the 1970s and 1980s. Sigmon and Palmieri share their experiences, mentors, and life influences that put them on a path towards meaningful strength and conditioning careers with the NSCA Coaching and Sport Science Program Manager, Eric McMahon. Hear how the book, The Golden Age of Strength and Conditioning was written to feature powerful stories of professional growth from the many who were there. Follow the link to read The Golden Age of Strength and Conditioning. You can also email Chip at chipsigmon@europasports.com and Jerry at jerrypalmieri910@gmail.com | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Adam Ross, Chair of and an Assistant Professor within the Kinesiology Department at Dallas Baptist University, talks to the NSCA Coaching Program Manager, Eric McMahon, about his unique dual role of strength coach and professor at the university. Topics under discussion include the NSCA Special Interest Groups (SIGs), building trust with athletes and students, and how his mentors and children have shaped his perspective of the field. Find Adam on Facebook: NSCA Baseball SIG or via Email: adamr@dbu.edu| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Want to break into tactical strength and conditioning? Start by understanding the physical and stress demands of tactical work. Whitney Tramel explains what coaches need to know before stepping into this space. Drawing on her experience across military, police, and fire settings, she outlines the training qualities tactical professionals need to stay ready. She also discusses the growing focus on “holistic health.” In her view, that means looking at the whole individual and supporting longevity across a demanding career. As Tactical Program Manager at the National Strength and Conditioning Association (NSCA) and a PhD candidate studying stress physiology, Tramel connects research with the realities of tactical coaching. She also addresses a side many coaches are not ready for: tactical athletes often trust their strength coach with conversations that reach far beyond training. Learn what the role requires, what coaches often miss, and how to enter the tactical field with clarity. Reach out to Whitney by email: whitney.tramel@nsca.com | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Looking to enter the tactical space or keep growing in it? Explore the Tactical Strength and Conditioning Facilitator® (TSAC-F®) certification and join us at 2026 NSCA Tactical Annual Training in Orlando this August 17 – 20.