HOW TO ESTIMATE HOW TALL YOU ARE LIKELY TO BE AS AN ADULT
From the time we are born, we are destined to grow to a certain height mainly based on our parents genes.
However, as we grow other factors chip in to redefine our final height destination and such factors largely fall under environmental factors that is if we are born perfectly healthy because some congenital health conditions may still have a say. More on those later.
From the time you are born, anything you do right that encourages your body to grow will enable your body to grow to it’s full potential and whatever you do that negatively affects growth will retard your growth and you end up being shorter than you should.
It’s extremely important to have a rough idea of how tall you should expect to be especially if you are not comfortable with your height and you are the type trying to increase your height by manipulating the environment, then you will know what you are up against.
So, how can your final height be predicted?
First of all you need to understand that no single method can be 100% accurate when it comes to height prediction due to factors like genes, nutrition, the environment in which one grows and most importantly, health.
1…The Bone age method
Bone age is a measure of the degree of skeletal maturity of a child, i.e. how far the child has advanced in its development of the skeleton and normally determined from an X-ray image of the hand.
Bone age is measured in years, most often using the Greulich-Pyle bone age scale.
If a child has bone age 10 years it means that the child maturation is as advanced as the average of the 10-year old children from Ohio in 1930-1940 that were studied by Greulich and Pyle.
Present-day Western-European children mature approx 2-4 months later than the very healthy children studied by Greulich and Pyle, so the average bone age of 10-year-old children is approx. 9.7 years.
The standard deviation of bone age at a given age is approx 1 year, which implies that in a random group of 7 boys of the same age, there is on average 3 years difference between the most and the least mature boy, i.e. the most advance boy has puberty 3 years before the least advanced.
The growth spurt of boys occurs on average at 13.5 years of bone age, and the girls have menarche at bone age 13.2 years, on average.
2..The other commonly quoted formula uses parental height and gender to predict adult height (in inches)
(height of mother + height of father + 5 inches/ 13 cm ) / 2
(height of mother + height of father – 5 inches/ 13 cm ) / 2
with this formula, your final adult heights will end up at + or – 2 to 3 inches. Depending on environmental factors.
3..Predicting height from childhood
Professor David Ravine from the Western Australian Institute for Medical Research, said: ‘As a rough rule, adult height can be estimated pretty well by doubling the height that was achieved at two years of age.’
Double a boy’s height at age two or a girl’s height at 18 months.
Most children will reach an adult height within 4in (10cm) of this estimation.
To Sum it up;
If you are like most healthy people, your height is similar to that of your parents, closer to your father’s if you are male, closer to your mother’s if you are female.
Nutrition in-utero and in the first few years of life have an impact on the height a child will grow to.
Also to note, Science shows that height tends to decrease in younger siblings.