Estimation of the human

The research question was to find if anthropometric properties, the design of the chair and the performed activity has influence on the back contour of a person.  This research indicates that the maximum variation of these contours occur on the upper back, neck and head. By dividing the data in four groups, based on the upper body length, the height at which significant difference occurs was determined.

Test setup

The test set-up used for determining the head, neck and back contour of the participants.
Meting: Using the kyphometer to determine the back contour in two different airplane chairs.


  • N. Nijholt
  • T. Tuinhof