Measurement of scapular kinematics with the moiré fringe projection technique

Journal of Biomechanics
Pollyanna F GomesLuci Fuscaldi Teixeira-Salmela

Abstract

The aim of this study was to investigate the applicability of the moiré fringe projection technique (MFPT) to quantify the scapular motions relative to the thorax. This system was composed of a LCD projector, a digital photographic camera, and a microcomputer. To automatically obtain the scapular profiles, the phase shifting method was combined with the MFPT. Four fringes were projected on the scapula and four on the reference planes. By the simple subtraction of the reference values from the scapular phase maps, the map due to the moiré fringes could be digitally obtained. After the phase decoding, the tridimensional (3D) profiles were obtained without prior information about the samples and the calculations of the scapular kinematics were carried out using dedicated software. On average, the movements of lateral rotation ranged from -1.8+/-6.1 degrees to -26.5+/-3.5 degrees; the protraction from 28.4+/-4.7 degrees to 27.7+/-6.8 degrees, and the posterior tilt from -6.4+/-7.8 degrees to -21.7+/-6.1 degrees, during the arm elevation in the scapular plane performed by six healthy subjects. For the test-retest reliability, the intra-class correlation coefficients ranged from 0.92 to 0.997 and the maximum estimated error was 0.8%....Continue Reading

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Citations

Oct 4, 2012·Computer Methods in Biomechanics and Biomedical Engineering·F LeboeufO Remy-Neris
Jun 19, 2012·Journal of Bodywork and Movement Therapies·Lucas Rodrigues NascimentoLuci Fuscaldi Teixeira-Salmela
Jan 27, 2017·International Orthopaedics·Bertrand BoyerFrederic Farizon
May 17, 2014·Shoulder & Elbow·Ronald W HoardJack R Engsberg
May 20, 2015·JMIR Rehabilitation and Assistive Technologies·Cristina Roldan-JimenezPaul Bennett
Jun 4, 2017·International Orthopaedics·Bertrand BoyerFrederic Farizon
Feb 21, 2014··Min-shuang HuangJun-fen Huang

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