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.

Andrew C. Fry, Mel Siff, and Mike Arthur recognized for their career accomplishments.

Building athletes who are strong, healthy, and resilient requires more than sets and reps, starting with a shift in mindset. Christi Edson, Head of Performance for the Orlando Pride in the National Women’s Soccer League (NWSL), shares how she integrates strength and conditioning with sport science to sustain athlete health and performance. She reflects on the field’s evolution from the well-known “Bigger, Faster, Stronger” program to a training culture emphasizing resilience, active recovery, and durability. Drawing from her experience coaching high school athletes to NWSL professionals, Edson highlights the adaptability and creativity coaches need. Those qualities help her to develop athletes who can thrive through a demanding 11-month season. She details how tools like GPS, force plates, and velocity-based training sharpen communication and reshape expectations in the gym. Her story points coaches toward the future of athlete development: collaboration, precise load management, and long-term health as the foundation of strength. Connect with Christi on Instagram: @christiedson and LinkedIn: @christiana-edson | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Read the article, “A Creative Mind in the Professional Development of a Strength and Conditioning Coach,” from NSCA Coach, 11(1), February 2024 — referenced in this episode’s return-to-play discussion. NSCA Members enjoy full publication access. Interested in bridging coaching and sport science? The Certified Performance and Sport Scientist (CPSS) credential can help you expand your qualifications, open new career paths, and strengthen cross-department collaboration.

The purpose of this article is to provide education surrounding the importance of recovery in tactical populations, identify key aspects of the mental recovery process, and identify strategies Tactical Strength and Conditioning Facilitators® (TSAC-F®) can implement to promote mental recovery when working with athletes.

Learn about the basics of the high school strength and conditioning coach profession: description, responsibilities, qualifications, pay, advantages, and challenges.

This excerpt from Developing the Core briefly defines closed- and open-chain exercises and their respective roles in training.

This NSCA Coach article provides a framework for strength and conditioning professionals to support athletes in accessing appropriate mental health services. Visit NSCA online to read more on mental health and sport performance.