This article briefly reviews the importance of the stretch-shortening cycle in power production.

Athletes in field and court sports require reactive agility—they must accelerate, decelerate, and change direction in a constantly changing environment. These requirements result in technical differences between sprinting in a field or court sport and sprinting the 100-m.

Darnell Clark, Director of Strength and Conditioning at Charlotte Country Day School in Charlotte, NC, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about his path to becoming a high school strength and conditioning coach, the structure of his high school (Charlotte Country Day) strength and conditioning program, and giving back to the industry.

Lawrence Herrera, owner and founder of LH Performance, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about how strong is strong enough, keeping the training simple, and relating to athletes and coaches.

Tactical jobs are fast-paced, physically and psychologically intense, and failure can have tragic consequences, making it vital to train tactical athletes to perform better under stress.

The ability to manage the adaptive response, handle accumulated fatigue, and capitalize on the aftereffects established from training is central to the training process.

This article emphasizes environmental and nutritional dimensions in which there is enough robust evidence to make meaningful recommendations for sustainable nutrition practices.

Mike Snowden, University of Alabama Men’s Basketball Strength Coach, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about having a genuine relationship with head sport coaches. Topics under discussion include building players into the program, creating buy-in, and embracing new and unique career opportunities. Find Mike on Instagram: @mike__snowden or Twitter: @Mike__Snowden | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Molly Galbraith, Woman-in-Charge at Girls Gone Strong, talks to the former NSCA Head Strength and Conditioning Coach, Scott Caulfield, about the history of bringing Girls Gone Strong to fruition and filling the void of fitness information geared towards women. Topics under discussion include getting involved with the fitness industry and the NSCA, how to better coach women in a fitness setting, and creating educational content to support those who want to learn more. Find Molly on Instagram: @themollygalbraith or @thegirlsgonestrong

In the final part of this four-part series on proper movement, the author recommends that the US Marine Corps screen the movement quality of each Marine and educate them on how to move correctly in order to reduce the risk of injury.