IMG_NEW_0045 - The standard deviation for age at peak...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
The standard deviation for age at peak height velocity is slightly less than one year. The peak height velocity is highest in early-maturing children and lowest in late-maturing children. Since the peak height velocity may occrr as much as two years earlier or later than the average within each sex, a six year difference in the event between an early maturing girl and a late maturing boy is quite possible. The conclusion of the growth spurt is followed by a rapid slowing of growth. In USA cross-sectional studies, boys with a mean takeoff age of 1 1 years reached their final heights by 17-18 years of age, and girls with a mean takeoff age of 9 years reached their final heights by 14-15 years of age. However, there is a wide variation around these means - plus or minus two years' irr.i; ,, ir^ ^ {1 r i r { l Boys end=up-b"-tqg.!g,11qf lhgn grtls b-gcau,s,e tlrgyhave two- -more years of growth before tnegowt6.sp"4. ou.itrg ttt"r- two extra y.ursof prepubert"r g"*irr U ft$, irraj.Z, "., growing relatively
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/29/2011 for the course KIN 142 taught by Professor Asmundson during the Fall '09 term at Simon Fraser.

Ask a homework question - tutors are online