BIOLOGICAL MATURATION

Biological Maturation

As part of Northern NSW Football’s competitions policy, players that are potentially disadvantaged from a physical perspective due to later biological maturity may be eligible to play in a lower age-group.

Although players may be similar in terms of chronological age, their biological age can vary substantially due to the timing of their adolescent growth spurt. Late developers can be significantly disadvantaged from a physical standpoint (height, weight, speed, strength).

To identify those who may be late-developing players, Northern NSW Football has worked with Football NSW and Dr Ric Lovell (PhD) to develop a two-step process.

Eligibility

The below age groups will have the Biological Maturation principle apply for the 2022 season:

NPL NNSW (13s, 14s, 15s)
NPLW (13s, 15s)
HIT 106.9 Northern League One (13s, 14s, 15s)
Junior Development Leagues (JDL) (12s)


Pre-screening

Firstly, clubs and/or parents can use the online self-assessment tool below to determine whether a player could potentially be deemed as a late developer.

If the player is deemed as a late developer according to the online assessment tool then they can be registered for the second step of the process, which is a verification assessment conducted by Northern NSW Football.

The below online assessment tool is only the first stage of the process. All players are required to attend one of the advertised NNSWF assessment dates before being able to register to play down an age group officially.

Video Tutorials

The three short video tutorials shown below will assist you on how to conduct these measurements correctly, which are necessary to estimate the player’s biological maturation category. Accurate measurements of the player’s height, weight and their sitting height are required, in addition to the player’s date of birth, gender and the date in which the measurements are collected.

Thank you to Football NSW and Ric Lovell (PhD) Associate Professor (Sport and Exercise) Western Sydney University for allowing NNSWF to utilise these demonstrative videos.

How to Measure: Standing Height 

How to Measure: Seated Height

How to Measure: Body Mass


Are you Eligible?

The below calculator will provide two results: the estimated age at peak height velocity (APHV) and the maturation category which will be classed as either early, on-time or late developer.

The age at APHV is an estimate of when the player did or is predicted to go through the most intensive phase of the adolescent growth spurt. Some players will have already been through the growth spurt, whereas some others are yet to do so.

To categorise their maturation status, the APHV is cross-referenced with normative data for boys and girls. The age criteria used to categorise biological maturation is as follows:

Boys:
APHV <13.5 = early
APHV 13.5-14.5 = on-time
APHV >14.5 = late

Girls:
APHV <11.5 = early
APHV 11.5-12.5 = on-time
APHV >12.5 = late

Should the player be classified as a late developer according to this online assessment, the player can register for a verification assessment with NNSWF.

If the player is officially confirmed as a late-developer during the assessment with NNSWF, the player has the option to register in a lower-age group. However, we recommend that before a decision is made that the technical directors, coaches, players and parents consider carefully the implications of competing at a lower age category.

In borderline cases where the player is close to the late maturer cut-off (APHV >14.3 for boys and > 12.3 for girls) players can also register for a verification assessment with NNSWF.

Biological Maturity Calculator

Please click on the link below and carefully follow the procedures shown in the videos to double check that the data entered into the calculator is accurate, as subtle errors can have a significant effect on the results.


CALCULATOR


Biological Maturation Testing for 2022

All players must register via the link below in order to be verified if calculated to be either borderline or a late developer.

REGISTER HERE


Due to the current restrictions, NNSWF will advise registered players of the testing dates once they become available.

For any enquiries please contact NNSWF Talented Player Programs Administrator Rebecca Nee:

Phone: 02 4941 7200 | Email: RNee@northernnswfootball.com.au

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