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.

One of the most common questions received is, "How do I prepare for the CSPS exam"? Since candidates come from wide and varied backgrounds, we recommend a few different approaches to studying for the CSPS exam. Learn more about preparing for the CSPS exam.

The National Strength and Conditioning Association is governed by a Board of Directors that is elected by the NSCA membership. The board is comprised of eight members of the NSCA and one elected public member.

Attend a unique NSCA-CPT Exam Prep Live Clinic and receive a comprehensive review of the knowledge, skills, and abilities required to successfully pass the NSCA-CPT certification exam. Qualified industry professionals will take you through the information as outlined in the Detailed Content Outline and answer your questions in this 2-day online clinic. Strive for success – sign up today for this NSCA Exam Prep Clinic.

Learn, participate and network with colleagues at (location) while earning CEUs. Hosted by the state, provincial and regional directors, this local event brings cutting-edge research and application to your backyard.

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 Personal Training Quarterly article presents time-efficient fitness strategies to maintain physical and mental health during early parenthood. Visit NSCA online to read more on nutrition, health science, and fitness news.

What's behind enduring success at the highest level of college athletics? Kate Smith, Head Strength and Conditioning Coach at the University of Michigan, shares insights from nearly 14 years of experience coaching multiple sports in a competitive collegiate environment. Smith emphasizes sustained excellence through adaptability, genuine curiosity, and openness to opportunities — even outside of athletics. Drawing on her private-sector experiences, she explains how diverse roles helped shape her flexible, athlete-centered philosophy. Smith candidly addresses current collegiate challenges, including navigating Name, Image, and Likeness (NIL) distractions and adjusting motivational strategies across team cultures and generations. As a Certified Performance and Sport Scientist® (CPSS®), Smith highlights how integrating data-driven insights helps her create a more effective training environment. This expertise uniquely positions her to bridge athletics with academics, deepening collaboration on campus-wide performance initiatives. Learn how to implement practical strategies for keeping athletes engaged amidst external pressures, leverage performance data meaningfully, and continually refresh your coaching approach. Connect with Kate via email at kannehay@umich.edu and on Instagram: @katehaycock | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs