This article discusses how high-intensity interval training may be an effective metabolic training method for soldiers trying to maintain physical preparedness during deployment.

Scientific research has identified lactate threshold (LT) and maximal exercise performance as being very important contributors to endurance performance. A well-designed endurance training program can lead to improvement in both LT and maximal exercise performance within a single season and from season to season.

This excerpt explains the importance of optimal nutritional strategies in conjunction with good sleep hygiene and how that can help mitigate damaging effects of deployment and shift work on 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.

This excerpt from Developing Speed describes an agility drill that aims to develop change of direction.

As a personal trainers business and clients grow a limitation of time and number of clients one can fit into a day is often dealt with by charging more per session or offering more time slots. This article goes over how to implement group training to maximize results for clients and profitability for a personal trainer,

Duncan French, Vice President of Performance at UFC Performance Institute, and Bo Sandoval, Director of Strength and Conditioning, talk to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about how they holistically support around 570 Ultimate Fighting Championship (UFC) athletes and push the boundaries of the UFC Performance Institute in Las Vegas. Topics under discussion include staying open to new ideas and perspectives, being adaptable as a coach, and the different ways they support their athletes. Find Duncan on Twitter: @DuncanFrench or Instagram: @dr_duncan_french | Find Bo on Twitter: @olystrength or Instagram: @bo.sandoval | Find Scott on Instagram: @coachcaulfield

This is an excerpt from NSCA's Essentials of Sport Science by NSCA -National Strength & Conditioning Association, Duncan N. French & Lorena Torres-Ronda.

This article from TSAC 76, describes first responder wellness and the effects of PPE on occupational performance. Visit NSCA online to learn about exercise science and tactical fitness.

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