III. Growth In Heieht and WeiehtA. Growth Curves- 1r.'.rrt_iDistance curve - measurements taken at intervals are plotted against time to produce agraph ofprogress.Velocity curve - increments inthe rate of growth with time.are plotted against time to show the variation in) ' 'l ili , ,r,t2Longitudinal data - growth curve is derived from a single individual or from repeated /\measurements on the same goup of individuals over a period of many years. _/ \r_ .Cross-sectional data - measurements are made of several children in each age group, urd,*""u tJtthese are then combined to form a cross-sectional picture of the various age groups in thecommunity at the time of the investigation.B. Growth In HeightGrowth is a regular process, it doesn't proceed by stops and starts.Flom birth !o maturity. the most important difference between boys and girls is in the rateof maturity. Girls goy !]p- fa_stpf tha.4_b-pys - they reach 50 percent of their adult height atan earlier age (1.75 vs. 2.0 years), enter puberty earlier, and cease growing earlier. Halfway through the foetal period, the skeleton is already three
This is the end of the preview.
access the rest of the document.
Human height, adolescent growth spurt, peak height velocity, Peali height velocity, growth takeoff age