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.

The purpose of this article is to examine components that affect speed to determine the degree that speed is governed by skill versus genetic factors.

The purpose of this article is to provide strength and conditioning coaches with practical knowledge from the framework of self-determination theory to facilitate student-athlete motivation within the weight room across varying sports.

There is no argument that periodization is successful, and that different models can be applied with success in different fashions. The question of how shift work really affects a periodized program—more specifically firefighter shift work—is less clear.

This article discusses the importance of upper body power training for protective security personnel and its potential for an occupational performance marker.

From the 2021 NSCA’s Coaches Conference, Matthew Ibrahim, Co-Owner, Director of Strength and Conditioning, and Internship Coordinator at TD Athletes Edge, discusses how to help athletes develop the skills necessary to build the brakes in the athletic development process. Other topics covered include how to create a better understanding of the transfer from training in the weight room to sport performance.

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

To apply performance enhancement and injury prevention practices employed by today’s professional and collegiate athletics to the Army, a restructuring of training paradigms needs to be implemented across the force.

Tex McQuilkin, Director of Training for Power Athlete HQ, defines athleticism as a trainable performance variable at the 2019 Coaches Conference. McQuilkin illustrates the four phases of the competitive lifecycle for sport athletes and empowers coaches with strategies to best apply progressive overload and support the long-term trainability of novice athletes.