There are seven stages within the basic LTAD model:
Stages 1, 2 and 3 develop physical literacy before puberty so children have the basic skills to be active for life. Physical literacy also provides the foundation for those who choose to pursue elite training in one sport or activity after age 12.
Stages 4, 5 and 6 provide elite training for those who want to specialize in one sport and compete at the highest level, maximizing the physical, mental and emotional development of each athlete.
Stage 7 is about staying Active for Life through lifelong participation in competitive or recreational sport or physical activity.