With the rapid development of technology, the daily demands for physical activity are significantly reduced. This article details four distinct phases for personal trainers to implement when working with clients coming from sedentary lifestyles.

For emerging athletes to move properly and develop athletic skills, they must first develop proficiency in fundamental motor skills. The ABCs of athleticism, therefore, must reflect the development of fundamental motor skills first, and specific athletic skills second.

It is incumbent on all youth coaches to provide youth with the very best opportunities to succeed and develop to the best of their potential. The 10 pillars of long-term athletic development and recommendations provide coaches with the information they need to help all youth reach their potential.

The following article provides a list of tests that could comprise a fitness assessment to measure overall fitness and health prior to, during, and after an academy training program.

This article sets out to address and dispel these myths, offering evidence-based insights into the significance, safety, and multifaceted benefits of strength training for youth.

This brief excerpt breaks down agility into different target movement patterns to help develop an effective agility and quickness program.

This article will focus on the management of the physical training process of US Air Force Special Warfare candidates, with relevant information geared toward the specific demands seen within the first phases of a Special Warfare Operator’s development.

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.

Deceleration in court and field sports, such as football and soccer, is an important component of speed and agility. This book excerpt looks at how to train for effective deceleration.

Long-Term Athletic Development (LTAD) models have provided a youth sport framework for more than 2 decades, aimed at improving skill progression, training outcomes, and athlete preparation. Although influential, traditional LTAD approaches are limited by their sport-centric orientation, linear design, and focus on elite performance, leaving them less relevant for most youth and adults who do not pursue competitive sport. In response, we propose reframing LTAD as Long-Term Activity Development (LTActD), an accessible and flexible model designed to promote lifelong engagement in physical activity, including recreation, exercise, and sport. LTActD emphasizes 5 dynamic phases—Explore, Develop, Apply, Sustain, and Thrive—that accommodate diverse pathways, periods of inactivity, and opportunities to re-enter active living at any age. Represented as a curvy road, the new model underscores that participation in physical activity is rarely linear, more like a winding journey shaped by health, motivation, environment, and social context. LTActD bridges sport science and public health, positioning physical activity as a lifelong resource for health, independence, and fulfillment. LTActD offers a practical framework to empower individuals of all ages and abilities to discover meaningful ways to move, re-engage, and embrace active living throughout the life course.