a b/Docs/Applications/Daily-activities-and-ergonomics/SeatedHuman.md 

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---





  
  

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gallery_title: "Seated Human"





  
  

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gallery_image: "/Applications/images/SeatedHuman.webp"





  
  

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---





  
  

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(sphx-glr-auto-examples-adls-and-ergonomics-plot-seatedhuman-py)=





  
  

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(example_seatedhuman)=





  
  

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# Seated Human





  
  

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````{sidebar} **Example**





  
  

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<img src="/Applications/images/SeatedHuman.webp" width="70%" align="center">





  
  

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````





  
  

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A model of a seated human consisting of the full body model, a chair, and an





  
  

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interface between the two.





  
  

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:::{seealso}





  
  

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**Main file location in AMMR:**





  
  

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{menuselection}`Application --> Examples --> SeatedHuman -->





  
  

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SeatedHuman.Main.any`





  
  

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:::





  
  

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The Seated Human is a family of models resulting from a





  
  

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research project involving the furniture industry. This





  
  

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model is a human sitting in a generic chair where the seat,





  
  

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backrest, arm rests, foot rest and head rest can be adjusted





  
  

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and their influence on the forces in the human body can be





  
  

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investigated.





  
  

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:::{note}





  
  

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The contact conditions are conditional with





  
  

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respect to the distance between the body and the surface





  
  

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in question so that they are only active when the contact





  
  

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pair is close to each other.





  
  

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:::





  
  

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The contact between the human body and the chair is by means





  
  

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of contact elements that can only provide compression and





  
  

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friction but no tension. The available friction is proportional





  
  

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to the normal force and the user can supply a friction





  
  

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coefficient for each surface such that the effect of different





  
  

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surface fabrics can be investigated.





  
  

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