Definition. Labor induction â also known as inducing labor â is a procedure used to stimulate uterine contractions during pregnancy before labor begins on its own. Successful labor induction leads to a vaginal birth.
Rate of change in height (height velocity) is a more sensitive measure of growth than time-specific height measures. In general, healthy term infants and children grow about 2.5 cm/mo between birth and 6 mo, 1.3 cm/mo from 7 to 12 mo, and about 7.6 cm/yr between 12 mo and 10 yr.
 . . . a yearly increase in sprint velocity has been noted from age 5 years until age 16 years for boys, and until age 13 to 15 years for girls. The rate of development of speed seems to accelerate in two phases.