This NSCA Coach article provides a proposes a framework for standardizing SEB resistance training based on principles of kinetic and potential energy. Visit NSCA online to read more on exercise science and sport performance.

Some research has found that static stretching can have detrimental effects on subsequent performance. This is not to say that static stretching should be eliminated from an athlete’s program, but it should be sensibly incorporated into the daily training regimen since chronic stretching can enhance the range of motion around a joint and potentially improve strength and power performance.

This NSCA Coach article examines the importance of hip-shoulder separation on performance in baseball pitching. Visit NSCA online to read more on athletic performance and sport science.

Specificity of training involves an analysis of physiological, anatomical, and psychological needs for an activity. This article explains how to create a well-designed program that takes exercise specificity into account.

Gary Boros, Assistant Sport Performance Coach at the University of Denver, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about being flexible in your programming and with your staff, not always grinding your athletes into the ground, and the need to learn from others.

It is important for tactical athletes to be aware of their fluid intake and hydration status when training for or performing job duties. This article explains several ways this can be accomplished.

Strength and conditioning coaches who systematically progress specific training variables, including games, can help youth improve performance and reduce the risk of injury.

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.