As the final article of the three-part series on long-term athletic development (LTAD), this article will focus on enhancing physical fitness and participation in LTAD programs that promote physical fitness and physiological wellbeing, regardless of age, ability, and aspirations.

There can be no doubt that protein is important and this article reviews the current research to help further understand the recommendations for protein intake.

Dr. Tim Suchomel, Assistant Professor at Carroll University and Wisconsin State Director for the NSCA, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about the emerging role of sport science in strength and conditioning. Topics under discussion include Suchomel’s growing involvement with the NSCA, as well as weightlifting derivatives and their benefits for more individualized performance adaptations. Find Dr. Suchomel on Twitter: @DrTSuchomel or Instagram: @drtsuchomel or NSCA Sport Science and Performance Technology Special Interest Group | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

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 the TSAC Report shares dietary guidance, customized exercise programs, and strategies for integrating whole health for veterans. Visit NSCA online to learn more about exercise science.

This article from Personal Training Quarterly looks at training plans based on menstrual health to help personal trainers better support female clients. Visit NSCA online to read more on athletic performance, health, and fitness.

An organized, science-based, and evidence-based periodized program that is guided by capable and competent professionals is the most efficient and effective way to accomplish the task of returning from a shoulder injury to full active duty. The concepts of periodization paired with evidence-based strength and conditioning interventions provides the framework needed for tactical facilitators to accomplish this task.

This excerpt from NSCA’s Guide to Sport and Exercise Nutrition briefly analyzes some of the research behind creatine and its application to sport performance.

This article reviews the use of heart rate as a way to program cardiovascular exercise.

Knowing when to train and how much time to devote to training each of the three energy systems is an important ingredient of success in endurance sports. This knowledge is also reflected in a well-designed and scientifically-based training plan.