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Related Experiment Videos

Leg-crossing: incidence and inheritance

M Reiss1

  • 1Universitätsklinikum Carl Gustav Carus, Technischen Universität Dresden, ENT Department, Germany.

Neuropsychologia
|June 1, 1994
PubMed
Summary
This summary is machine-generated.

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Most people prefer crossing their right leg over their left. Familial studies suggest leg-crossing behavior may be influenced by genetic factors, potentially similar to handedness inheritance.

Area of Science:

  • Human behavior genetics
  • Anthropometry
  • Population studies

Background:

  • Leg-crossing is a common sitting posture where individuals place one leg over the other.
  • Prevalence varies, with a majority exhibiting a preference for crossing one leg over the other.

Purpose of the Study:

  • To investigate the prevalence of leg-crossing preferences in a population.
  • To explore potential genetic influences on leg-crossing behavior.
  • To compare inheritance patterns with other asymmetric traits.

Main Methods:

  • Population-based survey to determine leg-crossing preferences (right-over-left, left-over-right, no preference).
  • Analysis of familial data to assess inheritance patterns.
  • Comparison with established genetic models for handedness, hand-clasping, and arm-folding.

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Main Results:

  • Approximately 62% of the population are right leg-crossers.
  • 26% are left leg-crossers, and 12% have no preference.
  • Familial data suggest a genetic component, though not fitting simple Mendelian models.

Conclusions:

  • Leg-crossing preference shows a right-sided bias in the studied population.
  • The inheritance pattern is complex and may involve mechanisms similar to fluctuating asymmetry seen in other human traits.
  • Further research into genetic models for asymmetric traits is warranted.