The daily energy requirements of tactical personnel are highly variable, depending on gender, body composition, activities performed, age, and environmental conditions.

This excerpt from Developing Speed looks at how a fundamental understanding of the biomechanical principles that affect speed can assist coaches and athletes in developing running speed.

Hear from Lacey Jahn, Head Strength and Conditioning Coach for the United States Marine Corps East School of Infantry. Jahn shares her unusual path into strength and conditioning with NSCA Coaching and Sport Science Program Manager, Eric McMahon, including stops in curriculum development and working as a lifeguard. Learn more about tactical strength and conditioning jobs, athletic qualities as they relate tactical performance in the military, and the how to approach attending strength and conditioning education events as a young coach. You can reach out to Lacey on Instagram: @laceylyrla | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This NSCA Coach article examines strength and conditioning strategies for collegiate distance runners to build performance for outdoor competition. Visit NSCA online to read about sport science.

This article in NSCA Coach explores how developmental psychology enhances coaching in high school strength settings. Visit us online to learn more on high school strength training and exercise science.

This excerpt from Developing Agility and Quickness explains a twelve-station agility circuit for basketball athletes.

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.

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.

Because habits are contextually linked, it is reasonable to suggest that modifying the environment may disrupt the habit process and allow conscious intention to guide behavior. This article focuses on providing practical recommendations to aid individuals with intentions to exercise and eat healthy to reach their goals in the face of undesirable habits.