Wednesday, December 31, 2008

PosturePrint™ is Now a Validated Posture Analysis

By Denise Perron, BS, DC
Dr. Perron presently is Vice President of Business Development for Biotonix, a technology company in Montreal, Quebec, Canada. She received her DC degree from Palmer College in 1985. Before deciding to help advance Biotonix‚s entry into healthcare markets, she had a high volume chiropractic practice for 15 years. For the past 8 years, Dr. Perron has been a member of the Board of Directors of Somiper Inc., which owns assets in the biotechnology, pulp and paper and aviation industries. She has lectured on Postural analysis and protocols of care at many different chiropractic colleges and universities, including Parker, CMCC, UQTR, as well as medical institutions such as Stanford, and University of Pittsburgh Medical Center. Since 2002, Dr Perron has also been involved with lecturing to Chiropractors and healthcare practitioners in Japan.

There are a few Posture Analysis programs available for clinical use in Chiropractic practice, but none have published research, except one system: the PosturePrint™.1,2 PosturePrint™ is a Internet computer analysis system offered by Biotonix, a Montreal, Quebec, Canada Company.
In December 2004, at the University of Quebec at Three Rivers’ Biomechanics Laboratory under the supervision of Professor Martin Normand, over 700 digital photographs of a mannequin head, rib cage, and pelvis were obtained in different measured postures.
The PosturePrint™ system requires a three photographic set (left lateral, AP, and right lateral). These photographs were processed through the Biotonix PosturePrint™ program and the measurements in degrees of rotation and millimeters of translation were compared to the known positioned mannequin parts. The errors were less than 1.5 mm and less than 1.5 degrees for measuring the head, rib cage, and pelvis in 3-D as rotations (Rx, Ry, Rz) and translations (Tx, Tz). This accuracy is phenomenal considering that we are not using a $200,000 University computer program with 4-6 simultaneous camera settings.
References
1) Harrison DE, Janik TJ, Cailliet R, Harrison DD, Normand MC, Black P, Perron DL. Validation of an algorithm to estimate 3-D rotations and translations of the rib cage in upright posture from three 2-D digital images. 8th Biennial Congress of the World Federation of Chiropractic, International Conference on Chiropractic Research, Sydney, Australia, June 16-18, 2005:328-9.
2) Harrison DE, Janik TJ, Cailliet R, Harrison DD, Normand MC, Black P, Perron DL. Validation of an algorithm to estimate 3-D rotations and translations of the head in upright posture from three 2-D images. 8th Biennial Congress of the World Federation of Chiropractic, International Conference on Chiropractic Research, Sydney, Australia, June 16-18, 2005:332-3.

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