The catecholamines—primarily epinephrine, but also norepinephrine and dopamine—are secreted by the adrenal medulla and are important for the acute expression of strength and power because the hormones act as central motor stimulators and peripheral vascular dilators to enhance enzyme systems and calcium release in muscle.

Various methods of eccentric training that aim to increase muscle mass or reduce ground contact time during a landing task have been extensively researched and practically examined. However, multiple methods to implement eccentric training currently exist; they differ in execution and intended training adaptions. There is a clear differentiation between an eccentric muscle action and an eccentric motion whereby a motion alludes to a downward movement of an exercise. The proposed eccentric motions are dissipating eccentrics, deceleration eccentrics, overcoming eccentrics, maximal eccentrics, and rebound eccentrics. These motions formulate into training methods and cues to allow practitioners to clearly differentiate the various eccentric training methods used in research and practice. This review proposes a new conceptual framework that clearly outlines the different forms of eccentric motions that fall into a desired eccentric training method.

This article discusses using the principle of specificity as an important component in tactical training programs to enhance performance, decrease injuries, and improve functional longevity of a tactical athlete.

Omega-3 fatty acids not only have positive impacts on the eyes, heart, brain, and joints, but also on muscle tissue. Omega-3 is a very important nutrient that can help an individual achieve optimal health and performance.

This NSCA Coach article discusses training modalities in bench press training and incorporating accessories to improve rate of force development (RFD) among athletes. Visit NSCA online to read more on strength training and exercise science.

This excerpt from NSCA’s Guide to Sport and Exercise Nutrition explains branched-chain amino acids

The following information provides an overview of what microdosing (MD) is, the limitations in utilizing it as a programming method, and the structure of an MD training session along with examples of in-season and off-season training microcycles.

This article explores biomechanics through the lens of a fulcrum and lever system, providing personal trainers with strategies to reduce injury risk and improve performance. Visit NSCA online to learn more about personal training and program strategies for fitness.

Understanding how the body adapts to the overload of aerobic exercise is critical to designing effective exercise training programs, monitoring exercise responses and progress, and assessing training outcomes.

A study that investigated the effect of modified German volume training on muscular hypertrophy and strength concluded that the modified German volume training program is no more effective than performing five sets per exercise for increasing muscle hypertrophy and strength. To maximize hypertrophic training effects, it is recommended that 4 – 6 sets per exercise be performed.