I want to compare youth football players of different ages and I just have the chronological age and wheight & height. it's possible to compare them with the control of maturation process?
Thank you all for your time!
Hi Bruno
This paper may be of use to you. You can obtain a maturity offset by using just age and height.
Moore, SA., McKay, HA., MacDonald, H., Nettlefold, L., Baxter-Jones, AD., Cameron, N., & Brasher, PM. (2015). 'Enhancing a Somatic Maturity Prediction Model'. Medicine and Science in Sports and Exercise. 47(8):1755-64. doi: 10.1249/MSS.0000000000000588.
Be sure to also look at the research taking place in the filed of growth and maturation in sport and exercise: https://www.researchgate.net/project/Growth-and-Maturation-in-Sport-and-Exercise
Regards
Owen
Bruno,
especialista nesse assunto é o MALINA. Possui vários trabalhos sobre esse tema.
https://issuu.com/phorteeditora/docs/crescimento_maturacao
http://www.revistamotricidade.com/arquivo/2011_vol7_n3/v7n3a08.pdf
VOCÊ também pode estabelecer a maturação por cálculo matmeático.
Dear Dr Ferreira,
this is a really interesting question. Maybe the following reference will be relevant for you:
Article BMI as a Mediator of the Relationship between Muscular Fitne...
Apparently it can be accessed via researchgate.
It not only makes reference to age and weight, but also to muscular fitness and BMI.
Yours sincerely,
Rainer
dear doctor bruno, I recommend you look at table 2, the study attached, a few years ago we are working on a similar line of research, so we can collaborate with pleasure.
Article Análisis Comparativo de la Condición Física Aeróbica en func...
Hi Bruno, we recently looked at school children's BMI values relative to their chronological and biological (maturational) ages. What we found was that somewhere between 20-30% of kids identified as overweight/obese for their chronological were actually reclassified down a category overweight/normal when assessed relative to biological age. The paper is in the project page Owen suggested you look at.
All you have to do is place the child's BMI values relative to their chronological and biological ages on the traditional BMI WHO growth curves. We used the Khamis Roche method to determine % of adult stature attained as an index of somatic maturation and then translated this value to the age at which the specific % value would be expected to be attained in boys or girls from the UK 1990 data set. The great thing about the UK 1990 data set is that it can be used to determine the % values for all ages up to 18 at almost every 0.1 of a year in age. You could apply this same strategy much more easily if you had a measure of skeletal age via a hand wrist x rays. If you are simply wanting to control for maturity in a simple test of differences across age groups then all you would need to do is assess maturation and treat it as a covariate.
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