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 covers commonly used terminology from United States of America Weightlifting (USAW), plus it contains illustrations of the basic positions for weightlifting exercises.

This TSAC Report article discusses why female firefighters need sex-specific training to improve biomechanics, reduce injury risk, and support career sustainability. Visit NSCA online to read more about exercise science and occupational readiness.

Learn about the framework for practical, functional, and sequential skill development for a “best practices” model. This model is designed to develop a movement vocabulary, physical literacy, and movement skills for improved athleticism.

This article serves to educate people about the menstrual cycle in the tactical female population. It provides a framework for how to work through the phases of menstruation to increase training response, and thus, overall success in military training.

This article provides considerations for preparing firefighters for the physical and psychological demands of their job, including pre-operational work specific training during their rest times.

Tex McQuilkin, Director of Training and Education at Power Athlete talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about Coach McQuilkin’s work at power athlete, his athletic background, and his start into Strength and Conditioning. Topics under discussion include: Power Athletes education program, Coach McQuilkin’s experiences working with athletes, his GA position,

This Kinetic Select from Developing the Core reviews the effects of muscle activity when performing exercises on unstable surfaces.

This article contains examples of how to periodize training programs to help aerobic endurance athletes reach their peak condition at the appropriate time of the year.

NSCA has a network of volunteer leaders who direct NSCA’s efforts at the state level. NSCA’s Southeast Regional Coordinator provides oversight and training to local state directors. Members in the Southeast Region can connect at local and regional events as well as on Facebook to others in this area.