Question 1

What is peak height velocity and why does it matter?

Accepted Answer

It is the fastest rate of growth in stature during the adolescent growth spurt, and it is used to class a young athlete as pre-, circa- or post-PHV. It matters because injury risk, training tolerance and performance track maturity rather than age, and expert consensus links the period during and for around 12 months after PHV with higher maturity-related injury risk.

Question 2

What is the difference between the relative age effect and maturity selection bias?

Accepted Answer

The relative age effect concerns birth date within the selection year: children born soon after the cut-off are nearly a year older than those born just before it and are over-represented in squads. Maturity selection bias concerns biological age: among children of the same age, early maturers are preferentially selected for a physical advantage that is temporary.

Question 3

What is bio-banding intended to achieve?

Accepted Answer

It groups athletes by maturity status rather than age, most often by percentage of predicted adult height, so early maturers meet a physically comparable challenge and late maturers can express skill without being overwhelmed. It supplements age group competition rather than replacing it, and technical and psychological readiness should be considered alongside size.

Question 4

Why is a twisting knee injury in a skeletally immature athlete assessed differently?

Accepted Answer

Mechanisms that cause ligament injury in adults can cause physeal injury in a skeletally immature athlete. Presuming a sprain risks missing a growth plate fracture, so tenderness over the growth plate after a twisting injury needs careful assessment.

Growth and Maturation in Young Athletes

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