Acceleration (human development)

Acceleration in human development process is the phenomenon which has been registered in many populations around the world. This applies equally to the growth of certain anthropometric parameters and the speed of reaching sexual maturity. These facts illustrate the results of secular changes in body height and appearance of the first menstruation (menarche).[3][4][5]

Secular trend in decrease in age of menarche in Western European and North American girls
After:[1]
Stature comparison between American-born children of European descent and earlier populations of the same heritage
After:[2]

Increases in human stature are a main indicator of improvements in the average health of populations. The newest data set for the average height of adult male birth cohorts, from the mid-nineteenth century to 1980, in 15 European countries was studied (in the populations listed).

During a century average height increased by 11 cm representing a dramatic improvement of this phenomenon. The apparent acceleration of body height occurred during the periods around the two World Wars and after the Great Depression.

In the mid-nineteenth century European girls' menarche occurred at the average age of 16.5 years. One hundred years later, this age was reduced to under 12 years.[6]

  • Increase in adult height of birth cohorts (cm/decade)[7]
Population 1871–1875
to
1976–1980		 1871–1875
to
1911–1915		 1911–1915
to
1951–1955		 1951–1955
to
1976–1980
Austria 1.11 0.59 1.50 1.32
Belgium 1.08 0.41 1.59 1.32
Bosnia and Herzegovina[8] 2.00
Denmark 1.24 0.58 1.83 1.37
Finland 0.84
France 0.91 0.57 1.10 1.16
Germany 1.25 1.20
Great Britain 0.93 1.14 0.99 0.50
Greece 1.55
Ireland 0.80 1.00
Italy 1.06 0.72 1.14 1.50
Netherlands 1.41 1.34 1.32 1.67
Norway 0.93 0.79 1.49 0.26
Portugal 0.94 1.72
Spain 1.19 0.74 0.79 2.53
Sweden 0.97 0.68 1.25 1.00
Average 1.08 0.76 1.27 1.26
Standard Deviation 0.18 0.28 0.31 0.54

See also

References
  1. Boaz N. T. (1999): Essentials of biological anthropology. Prentice Hall, New Jersey, ISBN 0-13-080793-1.
  2. Boaz N. T. (1999): Essentials of biological anthropology. Prentice Hall, New Jersey, ISBN 0-13-080793-1.
  3. Hatton T. J. (2013): "How have Europeans grown so tall?"; Oxf. Econ. Pap., 2013: 112–138. doi: 10.1093/oep/gpt030.
  4. Boaz N. T. (1999): Essentials of Biological Anthropology. New Jersey: Prentice Hall, ISBN 0-13-080793-1.
  5. Hadžiselimović R. (2005): Bioanthropology – Diversity of Recent Man. Sarajevo: INGEB (Institut za genetičko inženjerstvo i biotehnologiju u Sarajevu), ISBN 9958-9344-2-6, In Bosnian.
  6. Boaz N. T. (1999): Essentials of Biological Anthropology. New Jersey: Prentice Hall, ISBN 0-13-080793-1.
  7. Hatton T. J., Bray E. (2010): "Long run trends in the heights of European men, 19th and 20th centuries". Economics and Human Biology, 8:405–413.
  8. Hadžiselimović R. (2005): Bioanthropology – Diversity of recent man. Sarajevo: INGEB, ISBN 9958-9344-2-6, In Bosnian.
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