Link System of the Human Torso
Abstract
The objective of the study was to develop a quantitative description of the mobility of the human torso. This was accomplished by a systematic multi- disciplinary investigation involving techniques of cadaver dissection, anthropometry, radiography and cinefluoroscopy, photogrammetric, and computer analysis. Seventy-two anthropometric dimensions were obtained on 28 male volunteers, including bone lengths of the extremities and vertebral landmarks. These subjects were statistically matched for both stature and weight to a 1967 USAF antropometric survey of 2385 adult males. Both radiographs and photographs from different viewing angles were then taken of the subjects while they performed specific reach motions. Statistical regressions were obtained which describe how specific surface markers and bone reference points move in relation to the elbow position for both seated and standing subjects. The major results of the study are, prediction equations and graphs for a large range of body positions and specific anthropometric variables; prediction equations and graphs describing how the base of the spine reference point moves in relation to defined seated and standing reference points for given reaches; a statistical tabulation with illustrations of 72 anthropometric dimensions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1972
- Accession Number
- AD0754924
Entities
People
- Don B. Chaffin
- Richard G. Snyder
- Rodney K. Schutz
Organizations
- University of Michigan