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.

This article in NSCA Coach examines practical strategies to mitigate LEA and enhance performance in female soccer players. Visit NSCA online to learn more on sports science and exercise research.

This article explores the critical role of nutrient timing in optimizing energy levels, supporting recovery, and enhancing overall physiological responses.

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.

The steps on this page will help you select the right certification that fits your career goals.

As the prevalence of disordered eating in sport continues to increase, sports dietitians and all medical personnel must learn to identify it properly and follow evidence-based practice, including sound judgment, when treating athletes with these issues.

Colin Wilborn and Bret Contreras are elected to the NSCA Board of Directors. Joining the Nomination Committee are Shawn Arent and Jenevieve Roper.

By following the guidelines of the American Dietetic Association, a vegan or whole food, plant-based diet can be a viable option for athletes as well as non-athletes to maintain health, support athletic performance, and positively impact the environment.

This article explains the use of structured functional fitness programs for injury prevention and enhanced job performance in fire service personnel.

Why are some behaviors so easy to change while others are so excruciatingly difficult? In this session from the 2015 NSCA Personal Trainers Conference, Annette Lang explains how to identify specific components that have contributed to success—or lack thereof—in changing behaviors and ultimately, habits.