Fathering Magazine for fathers, dads, family

NOTICE: This website is FOR SALE. Buy Now!

What's New
Beginners' Tour
True Stories
True Soap

New Fathers
The Joy of Fathering
Importance of Fathers
Fathers & Sons
Fathers & Daughters
Single Fathers
Second Wives -
   Second Families
Gender & Fathers
Custody & Divorce
Father Custody
Child Support
Cyber Bullying
Sex Bullies
Family Vacation
Father's Day
Mother's Day

Book Reviews
Fathering Poems
Fathering Fiction
Cooking Recipes
Science Fair Project
US Constitution

Female Offenders
Juvenile Offenders

Child Health
New Baby
Signs of Puberty
Car Hazards
Child Obesity
Teen Smoking
Teen Drinking

Men's Health
Hair Loss
Muse ED Review

Stephen Baskerville
Michael Childers
Kirk Daulerio
John Gill
Paul Goetz
Sam Harper
Jim Loose
Mark Phillips
Fred Reed
Carey Roberts
Glenn Sacks
Clyde Verner
Archie Wortham

Child Support Policy
Child Support Math
Commercial Justice
Abuse Hysteria
Missing Child Money
Gender Equality?

Legal Disclaimer
When Willie Wet the Bed
Fathering poetry about a classic problem.

When adult control fails, the resulting power vacuum is filled by gangs and bullies. By Clyde Verner.

Teaching Children the Importance of Winning
Encouraging in our children the drive to win can be just as important as teaching them to lose gracefully. By Chris Call.

Suggestions for the New Single Father
Russel Wayne provides some immensely practical childcare tips for the man who has to go it alone.

Promoting Your Child's Balanced Development
Giving your children the opportunity to develop a special talent can provide them with a sense of their uniqueness and be a healthy enhancement to their self esteem. By Gerald Alpern.

Classical Fathering versus the Judeo-Christian Model
We interview historian Frederick Hodges about raising children with classical Western values by avoiding the methods imposed on the West by Middle-Eastern religions.

What Fathers Do
by Jack Kammer.

The Fathering Advisor
Selected Reader Mail Gets Our Response

Follow on

Home > Puberty > Timing

adult height projection calculation formula and bone age in puberty

Target height in cm for a boy = [(mother's height in cm + 13) + father's height in cm)]/2

father 176cm
mother 157cm

157 + 13= 170
170 + 176 = 346 346 / 2 = 173cm

son's projected height is 173cm, assuming his puberty comes at the normal time

  • The height projection must be adjusted according to when puberty occurs. Early puberty causes a rapid growth spurt that ends prematurely, causing short height in adulthood.
  • If the boy's growth spurt and puberty happens early, he will be tall in pubescent years but shorter than projected in adulthood, due to early closure of the bone growth plates.
  • If the boy's growth spurt and puberty happens late, he will be short in pubescent years but taller than projected in adulthood, due to a prolonged growth period before closure of the bone growth plates.
  • Growth hormone has no further effect on height once the bone growth plates have closed.

  • timing of onset of puberty is related more to bone age than to chronologic age.

    The earliest triggers of puberty usually start by the time the bone age reaches 12 years of age in boys.

    Maturity Assessment by skeletal age
    Determination method must be stated along with bone age assessment. The methods most commonly used are the Greulich and Pyle Atlas and the Tanner-Whitehouse (TW2) method. In addition, other methods such as the FELS-method are also available. A result by the Greulich and Pyle method is generally about 1 'year' less than that as assessed by the Tanner-Whitehouse technique. The TW2 system has been transformed recently by the original author into a computerized image analysis system using a continuous scale Computer-Assisted Skeletal Age System: CASAS.

    Back to puberty index page

    Copyright © 2003 - 2018
    FatherMag.com. All rights reserved.

    The on-line magazine for men with families.

    Must parents accept early puberty as normal? How early puberty wrecks your child's health.

    Is the new baby a boy, or a girl? One out of every two thousand births presents parents with a sudden gender dilemma.

    Fertility, Circumcision, Prostate Cancer

    Protect Your Son
    How a father discovered, too late, that circumcision is not a good thing. By Rio Cruz.

    Children in Single-Mom Households "at Risk"
    The fact that children raised by single mothers are at increased risk is found over and over again. Trev Martin asks, "What do we do about it?"

    In Search of a History
    "The Preamble, the Declaration of Independence, and the Gettysburg Address are the sacred scriptures of this nation." By Richard Hiatt.

    Day Care - A Dangerous Experiment in Child-Rearing?
    "Social science confirms that children raised in day-care centers and similar institutions are often emotionally maladjusted and mentally impaired." - The Wall Street Journal