Detailed Phase Information

To understand how best to work with athletes in each developmental phase we want to better understand the physical, cognitive and psycho-social factors in their development. For each of the six phases of the USSA Training Systems you'll find more information below. Keep in mind that physical, cognitive and psycho-social development do not always fall in line with each other. For example, some athletes may be more physically mature than their same age peers, but their psycho-social development is not ahead of their same age peers. The coach, athlete or parent should consider all of these factors when making decisions for training and competition programming.


Phase 1 | Ages 2-6 | Pre-Puberty

Phase 1 is marked by a fun introduction to sport. Read more.


Phase 2 | Ages 6-10 | Pre-Puberty

Phase 2 is a period of rapid development across many sports. Read more.


Phase 3 | Girls ages 10-13; Boys ages 11-14 | Pre-Puberty

Phase 3 is a very important developmental period for skiers and riders to develop a broad base of skills and acquire proper movement patterns for their sport. Read more.


Phase 4 | Girls ages 11-14; Boys ages 12-15 | Puberty

Phase 4 is marked by the growth spurt with many implications for training and competition expectations. Read more.


Phase 5 | Girls ages 12-16; Boys ages 14-17 | Post-Puberty

Phase 5 follows the growth spurt and is marked by gains in strength and power. Read more.


Phase 6 | Girls ages 16+: Boys ages 17+ | Full Maturation

Phase 6 represents an athlete's full maturation and is a time to really focus on competition performance. Read more.