05/10/2026
Growth, Maturation, and Physical Literacy in Youth Development
What is a Growth Spurt?
A growth spurt (GS) is a period during childhood and adolescence when the body grows much faster than it normally does over a relatively short period. It is characterized by rapid increases in height, body mass, and other physical characteristics.
Because the body is changing rapidly during this period, temporary changes in coordination, balance, movement efficiency, and consistency of motor skills may occur. A child who previously performed a movement comfortably may temporarily appear less coordinated as the body adapts to changes in limb length, body proportions, and mass.
What is Peak Height Velocity (PHV)?
Peak Height Velocity (PHV) refers to the period when an individual reaches their maximum rate of growth in height, usually measured in centimeters per year.
Before PHV, growth begins to accelerate. As the growth spurt progresses, the rate of height increase eventually reaches its peak at PHV. After PHV, the rate of height growth gradually decreases as the individual moves toward physical maturity.
Approximate Timing of Growth and PHV
The timing of growth and maturation varies considerably between individuals. The following ages are only general estimates:
Girls
* Pre-growth spurt: approximately 8–10 years
* Growth spurt: approximately 10–11 years
* PHV: approximately 11–12 years
* Post-PHV: approximately 12–14 years
* Later maturation: approximately 14–16 years
Boys
* Pre-growth spurt: approximately 9–11 years
* Growth spurt: approximately 11–12 years
* PHV: approximately 13–14 years
* Post-PHV: approximately 14–16 years
* Later maturation: approximately 16–19 years
These age ranges should not be treated as fixed categories. Gender, genetics, nutrition, environment, and individual biological maturation can all influence the timing of growth.
Why Does This Matter in Training?
Training should take the athlete’s growth and maturation status into consideration. The objective is not simply to train according to chronological age, but to understand the developmental stage of the child and adjust training variables accordingly.
As the body changes, training may need to be modified in terms of movement complexity, coordination demands, strength development, speed, agility, volume, intensity, and recovery.
The goal is to target the appropriate physical qualities at the appropriate stage of development.
Another important concept in youth development is PHYSICAL LITERACY.
Physical literacy can be understood as a child’s ability to move competently, confidently, and comfortably in a variety of physical activities and environments.
At the foundational level, this includes basic movement skills such as:
* Running
* Jumping
* Landing
* Balancing
* Throwing
* Catching
* Hopping
* Skipping
* Changing direction
As children develop, these movements can become more complex and require greater coordination, agility, perception, decision-making, and cognitive control.
For younger children,particularly around the early childhood years,the priority should therefore be developing a broad movement foundation rather than immediately specializing in one sport.
From a practical coaching perspective, children who spend large amounts of time engaged in sedentary screen-based activities may have fewer opportunities to develop fundamental movement experiences. This is one reason why structured and unstructured physical play are important during childhood.
Development Is a Process
Youth athletic development is a long-term process.
The objective should not be to create a highly specialized basketball player as early as possible. The objective is to build a child who is:
Physically literate.
Comfortable with movement.
Confident in movement.
Competent in a wide range of movements.
Adaptable to different physical challenges.
Basketball-specific skills can then be progressively layered onto this foundation.
In other words, we should build the athlete before we build the specialist.
The long-term goal is not simply to make a child good at basketball at an early age. It is to develop the physical, cognitive, and movement foundation that allows the child to continue learning, adapting, and performing as they mature.
