MODELING THE MUSCLES OF THE SCAPULA MORPHOMETRIC AND COORDINATE DATA AND FUNCTIONAL IMPLICATIONS

Modelling of the shoulder mechanism is dependent upon reliable data on the morphometry and points of attachment of the relevant muscles. In this paper. the authors present coordinate data which have been derive d from the radiography of dissected cadavers. All of the coordinates h ave been normalised with respect to reference dimensions of the releva nt segments (humerus, scapula, clavicle and trunk). Similarly the meas urements of physiological cross-section area (PCSA) have been normalis ed with respect to that of deltoid. The measurements of PCSA have been shown to agree largely with the work of Veeger et al. [J. Biomechanic s 24, 615-629 (1991)] and Karlsson and Peterson [J. Biomechanics 25, 1 89-199 (1992)]. While the majority of the descriptions of morphometry concur with accepted texts there are some notable disagreements, parti cularly concerning trapezius. Copyright (C) 1996 Elsevier Science Ltd.