This article briefly explains the two principles necessary for muscle growth.

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.

This excerpt from Developing the Core briefly defines closed- and open-chain exercises and their respective roles in training.

Hunter Schurrer, Contracted Human Performance Specialist for Fort Lewis Washington 1st Special Forces Group talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about Coach Schurrer’s experience working with collegiate athletes, his mentors at the beginning of his S&C career, and his transition from D1 athletics to Tactical Strength and Conditioning. Topics under discussion include coaching colligate athletes, transitioning to the tactical setting, and training special forces groups.

This Personal Training Quarterly article shares hospitality­driven approaches to help personal trainers build connections with clients. Visit NSCA online to read more on fitness, hospitality, and health news.

This excerpt briefly explains myofascial release, self-myofascial release strategies, and benefits of these techniques.

The effects of alcohol on athletic performance vary depending on quantity, demographics, and type of exercise, making it difficult to determine specific recommendations. From an athletic performance standpoint, the acute use of alcohol can influence motor skills, hydration status, aerobic performance, as well as aspects of the recovery process.

This article argues that strength and conditioning coaches should investigate the subdisciplines of kinesiology as an approach to strength and conditioning for primarily anaerobic sports such as football and volleyball.

This article discusses how personal trainers can utilize the strength zone training system in order to develop true full range of motion strength, and thus help clients perform better and further reduce injury risk.

This article presents information about assessing speed and agility in a controlled environment with a test that is similar to the actual demands of a specific sport.