[Man and the chair - radiography of the lumbar vertebrae and pelvis in sitting position].
Radiographs of the lumbar spine in sitting and standing positions demonstrate sliding movements of the vertebral bodies to an unexpected extent, as a sign of the instability of the lumbar spine. These observations suggest some ideas for the construction of chairs.
D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D010384:Pelvic Bones / Q000000981:diagnostic imaging*; D011187:Posture; D011859:Radiography; D013122:Spinal Diseases / Q000000981:diagnostic imaging
Mensch und Stuhl - Lendenwirbel- und Beckenaufnahmen im Sitzen.