The effect of camera location on observation-based posture estimation

References

• Abu-Rajab , R.B. , Marsh , A. , Young , D. and Rymaszewski , L.A. 2010 . Visual estimation of joint angles at the elbow . European Journal of Orthopaedic Surgery and Traumatology , 20 : 463 – 467 .
   Web of Science ®Google Scholar
• Andrews , D.M. , Arnold , T.A. , Weir , P.L. , Van Wyk , P.M. and Callaghan , J.P. 2008 . Errors associated with bin boundaries in observational-based posture assessment methods . Occupational Ergonomics , 8 : 11 – 25 .
   Google Scholar
• Baluyut , R. , Genaidy , A.M. , Davis , L.S. and and Shell , R.L. 1995 . Use of visual perception in estimating static postural stress: magnitudes and sources of errors . Ergonomics , 38 ( 9 ) : 1841 – 1850 .
   PubMed Web of Science ®Google Scholar
• Banskota , B. , Lewis , J. , Hossain , M. , Irvine , A. and Jones , M.W. 2008 . Estimation of the accuracy of joint mobility assessment in a group of health professionals . European Journal of Orthopaedic Surgery and Traumatology , 18 : 287 – 289 .
   Web of Science ®Google Scholar
• Bao , S. , Howard , N. , Spielholz , P. and Silverstein , B. 2007 . Two posture analysis approaches and their application in a modified Rapid Upper Limb Assessment evaluation . Ergonomics , 50 ( 12 ) : 2118 – 2136 .
   PubMed Web of Science ®Google Scholar
• Barton , N.J. , Hooper , G. , Noble , J. and Steel , W.M. 1992 . Occupational causes of disorders in the upper limb . British Medical Journal , 304 : 309 – 311 .
   PubMed Web of Science ®Google Scholar
• Burdorf, A., Derksen, J., Naaktgeboren, B., and van Riel, M., 1992. Measurement of trunk bending during work by direct observation and continuous measurement. Applied Ergonomics, 23 (4), 263–267
   Google Scholar
• Chao , E. Y. 1978 . “ Experimental methods for biomechanical measurements of joint kinematics ” . In CRC handbook for engineering in medicine and biology , Edited by: Barry , B. N. and Fleming , D. G. 385 – 411 . Vol. 1. New York : CRC Press .
   Google Scholar
• Chung , M. K. , Lee , I. and Kee , D. H. 2003 . Assessment of postural load for lower limb postures based on perceived discomfort . International Journal of Industrial Ergonomics , 31 : 17 – 32 .
   Web of Science ®Google Scholar
• Croxford , P. , Jones , K. and Barker , K. 1998 . Inter-tester comparison between visual estimation and goniometric measurement of ankle dorsiflexion . Physiotherapy Theory and Practice , 14 : 107 – 113 .
   Google Scholar
• David , G. C. 2005 . Ergonomic methods for assessing exposure to risk factors for work-related musculoskeletal disorders . Occupational Medicine , 55 : 190 – 199 .
   PubMed Web of Science ®Google Scholar
• De Looze , M.P. , Toussaint , H.M. , Ensink , J. and and Mangnus , C. 1994 . The validity of visual observation to assess posture in a laboratory-simulated, manual material handling task . Ergonomics , 37 ( 8 ) : 1335 – 1343 .
   PubMed Web of Science ®Google Scholar
• Descatha , A. , Roquelaure , Y. , Caroly , S. , Evanoff , B. , Cyr , D. , Mariel , J. and Leclerc , A. 2009 . Self-administered questionnaire and direct observation by checklist: comparing two methods for physical exposure surveillance in a highly repetitive tasks plant . Applied Ergonomics , 40 : 194 – 198 .
   PubMed Web of Science ®Google Scholar
• Dunk , N.M. , Chung , Y.Y. , Compton , D.S. and Callaghan , J. 2004 . The reliability of quantifying upright standing posture as a baseline diagnostic clinical tool . Journal of Manipulative and Physiological Therapeutics , 27 ( 2 ) : 91 – 96 .
   PubMed Web of Science ®Google Scholar
• Edwards , J.Z. , Greene , K.A. , Davis , R.S. , Kovacik , M.W. , Noe , D.A. and Askew , M.J. 2004 . Measuring flexion in knee arthroplasty patients . The Journal of Arthroplasty , 19 ( 3 ) : 369 – 372 .
   PubMed Web of Science ®Google Scholar
• Ericson , M. , Kilbom , A. , Wiktorin , C. and Winkel , J. Validity and reliability in the estimation of trunk, arm and neck inclination by observation . Proceeding of the 11th Congress of the International Ergonomics Association . July 15–20 1991 . pp. 245 – 247 . France : IEA .
   Google Scholar
• Esch , D. and Lepley , M. 1974 . Evaluation of joint motion: methods of measurement and recording , Minnesota : University of Minnesota Press .
   Google Scholar
• Fransson-Hall , C. , Gloria , R. , Kilbom , A. and Winkel , J. 1995 . A portable ergonomics observation method (PEO) for computerized on-line recording of postures and manual handling . Applied Ergonomics , 26 ( 2 ) : 93 – 100 .
   PubMed Web of Science ®Google Scholar
• Frymoyer , J.W. , Pope , M.H. , Clements , J.H. , Wilder , D.G. , MacPherson , B. and Ashikaga , T. 1983 . Risk factors in low-back pain, an epidemiological survey . The Journal of Bone and Joint Surgery , 65 ( 2 ) : 213 – 218 .
   PubMed Web of Science ®Google Scholar
• Genaidy , A.M. , Simmons , R.J. , Guo , L. and Hidalgo , J.A. 1993 . Can visual perception be used to estimate body part angles? . Ergonomics , 36 ( 4 ) : 323 – 329 .
   PubMed Web of Science ®Google Scholar
• Hayes , K. , Walton , J.R. , Szomor , A.L. and Murrell , G.A.C. 2001 . Reliability of five methods for assessing shoulder range of motion . Australian Journal of Physiotherapy , 47 : 289 – 294 .
   PubMed Web of Science ®Google Scholar
• Hermanns , I. , Raffler , N. , Ellegast , R.P. , Fischer , S. and Göres , B. 2008 . Simultaneous field measuring method of vibration and body posture for assessment of seated occupational driving tasks . International Journal of Industrial Ergonomics , 38 : 255 – 263 .
   Web of Science ®Google Scholar
• Hignett , S. and McAtamney , L. 2000 . Rapid Entire Body Assessment (REBA) . Applied Ergonomics , 31 : 201 – 205 .
   PubMed Web of Science ®Google Scholar
• Hwang , J. , Kong , Y. K. and Jung , M. C. 2010 . Posture evaluations of tethering and loose-housing systems in dairy farms . Applied Ergonomics , 42 : 1 – 8 .
   PubMed Web of Science ®Google Scholar
• Keyserling , W. M. , Brouwer , M. and Silverstcin , B. A. 1992 . A checklist for evaluating ergonomic risk factors resulting from awkward postures of the legs, trunk and neck . International Journal of Industrial Ergonomics , 9 : 283 – 301 .
   Google Scholar
• Keyserling , W.M. , Stetson , D.S. , Silverstein , B.A. and Brouwer , M.L. 1993 . A checklist for evaluating ergonomic risk factors associated with upper extremity cumulative trauma disorders . Ergonomics , 36 ( 7 ) : 807 – 831 .
   PubMed Web of Science ®Google Scholar
• Lafond , D. , Descarreaux , M. , Normand , M.C. and Harrison , D.E. 2007 . Postural development in school children: a cross-sectional study . Chiropractic & Osteopathy , 15 ( 1 ) : 1 – 7 .
   PubMedGoogle Scholar
• Li , G. Y. and Buckle , P. 1999 . Current techniques for assessing physical exposure to work-related musculoskeletal risks, with emphasis on posture-based methods . Ergonomics , 42 ( 5 ) : 674 – 695 .
   PubMed Web of Science ®Google Scholar
• Liu , Y. , Wu , A. D. and Zumbo , B. D. 2010 . The impact of outliers on Cronbach's coefficient alpha estimate of reliability: ordinal/rating scale item responses . Educational and Psychological Measurement , 70 ( 1 ) : 5 – 21 .
   Web of Science ®Google Scholar
• Liu , Y. L. , Zhang , X. D. and Chaffin , D. 1997 . Perception and visualization of human posture information for computer-aided ergonomic analysis . Ergonomics , 40 ( 8 ) : 818 – 833 .
   PubMed Web of Science ®Google Scholar
• Low , J. L. 1976 . The reliability of joint measurement . Physiotherapy , 62 : 227 – 229 .
   PubMedGoogle Scholar
• McAtamney , L. and Corlett , E. N. 1993 . RULA: a survey method for the investigation of work-related upper limb disorders . Applied Ergonomics , 24 ( 2 ) : 91 – 99 .
   PubMed Web of Science ®Google Scholar
• McDonald , G. F. , Lord , S. M. and Nikolai , B. 1999 . Long-term follow-up of patients treated with cervical radiofrequency neurotomy for chronic neck pain . Technique Assessments , 45 ( 1 ) : 61 – 68 .
   Google Scholar
• Menadue , C. , Raymond , J. , Kilbreath , S.L. , Refshauge , K.M. and and Adams , R. 2006 . Reliability of two goniometric methods of measuring active inversion and eversion range of motion at the ankle . BMC Musculoskeletal Disorders , : 7:60, 1–8
   Web of Science ®Google Scholar
• Mergner , T. , Siebold , C. , Schweigart , G. and Becker , W. 1991 . Human perception of horizontal trunk and head rotation in space during vestibular and neck stimulation . Experimental Brain Research , 85 : 389 – 404 .
   PubMed Web of Science ®Google Scholar
• Milosavljeciv , S. , Milburn , P. D. and Knox , B. 2005 . The influence of occupation on lumbar sagittal motion and posture . Ergonomics , 48 ( 6 ) : 657 – 667 .
   PubMed Web of Science ®Google Scholar
• Perry , M. , Smith , A. , Straker , L. , Coleman , J. and O'Sullivan , P. 2008 . Reliability of sagittal photographic spinal posture assessment in adolescents . Advances in Physiotherapy , 10 : 66 – 75 .
   Google Scholar
• Rachkidi , R.R. , Ghanem , I. , Kalouche , I. , Hage , S.E. , Dagher , F. and Kharrat , K. 2009 . Is visual estimation of passive range of motion in the pediatric lower limb valid and reliable . BMC Musculoskeletal Disorders , 10 ( 126 ) : 1 – 10 .
   PubMed Web of Science ®Google Scholar
• Saad , K. R. , Colombo , A. S. and Amado João , S.M. 2009 . Reliability and validity of the photogrammetry for scoliosis evaluation: a cross-sectional prospective study . Journal of Manipulative and Physiological Therapeutics , 32 ( 6 ) : 423 – 430 .
   PubMed Web of Science ®Google Scholar
• Silva , A.G. , Punt , T.D. , Sharples , P. , Vilas-Boas , J.P. and and Johnson , M.I. 2009 . Head posture and neck pain of chronic nontraumatic origin: a comparison between patients and pain-free persons . Archives of Physical Medicine and Rehabilitation , 90 : 669 – 674 .
   PubMed Web of Science ®Google Scholar
• Watson , A. W. and MacDoncha , C. 2000 . A reliable technique for the assessment of posture: assessment criteria for aspects of posture . Journal of Sports Medicine and Physical Fitness , 40 : 260 – 270 .
   PubMed Web of Science ®Google Scholar
• Weir , P.L. , Holmes , A.M. , Andrews , D.M. , Albert , W.J. , Azar , N.R. and Callaghan , J.P. 2007 . Determination of the just noticeable difference (JND) in trunk posture perception . Theoretical Issues in Ergonomics Science , 8 ( 3 ) : 185 – 199 .
   Google Scholar
• Wiktorin , C. , Karlqvist , L. and Winkel , L. 1993 . Validity of self-reported exposures to work postures and manual materials handling . Scandinavian Journal of Work, Environment & Health , 19 : 208 – 214 .
   PubMed Web of Science ®Google Scholar
• Youdas , J. W. , Carey , J. R. and Garrett , T. R. 1991 . Reliability of measurement of cervical spine range of motion-comparison of three methods . Physical Therapy , 71 : 98 – 104 .
   PubMed Web of Science ®Google Scholar