Biomechanical significance of cross-sectional geometry of avian long bones. Export

@article{citeulike:5986180, abstract = {Cortical area, maximum second moment of area and polar moment were calculated for the long bones of 39 species of birds. Regressions of all these parameters to body mass were established. At the same time, the orientations of the maximum second moment of area were statistically tested. The parameters calculated on humerus and ulna scaled according to the predictions derived from the geometric similarity hypothesis, while those calculated for the long bones of the leg showed higher exponents, very close to the predictions of the elastic similarity hypothesis. Confidence intervals calculated for radius parameters appeared to agree with both predictions. Only the for tarsometarsus was it impossible to establish a global orientation pattern for the maximum second moment of area. In the other cases, the orientation was: sagittal in the radius, posteromedial-anterolateral in the proximal long bones (humerus and femur) and posterolateral-anteromedial in the distal long bones (ulna and tibiotarsus). The implications of the present findings are discussed in terms of the possible correlations between the orientation patterns produced in the cross-sectional geometry of avian long bones and the load carried.}, author = {Cubo, J. and Casinos, A.}, citeulike-article-id = {5986180}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/9526136}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=9526136}, issn = {0924-3860}, journal = {European journal of morphology}, keywords = {biomechanics, bone\_geometry, femur, humerus, ulna}, month = {February}, number = {1}, pages = {19--28}, posted-at = {2009-10-22 18:52:29}, priority = {2}, title = {Biomechanical significance of cross-sectional geometry of avian long bones.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/9526136}, volume = {36}, year = {1998} }

TY - JOUR ID - citeulike:5986180 L3 - citeulike-article-id:5986180 N2 - Cortical area, maximum second moment of area and polar moment were calculated for the long bones of 39 species of birds. Regressions of all these parameters to body mass were established. At the same time, the orientations of the maximum second moment of area were statistically tested. The parameters calculated on humerus and ulna scaled according to the predictions derived from the geometric similarity hypothesis, while those calculated for the long bones of the leg showed higher exponents, very close to the predictions of the elastic similarity hypothesis. Confidence intervals calculated for radius parameters appeared to agree with both predictions. Only the for tarsometarsus was it impossible to establish a global orientation pattern for the maximum second moment of area. In the other cases, the orientation was: sagittal in the radius, posteromedial-anterolateral in the proximal long bones (humerus and femur) and posterolateral-anteromedial in the distal long bones (ulna and tibiotarsus). The implications of the present findings are discussed in terms of the possible correlations between the orientation patterns produced in the cross-sectional geometry of avian long bones and the load carried. IS - 1 JF - European journal of morphology SN - 0924-3860 EP - 28 TI - Biomechanical significance of cross-sectional geometry of avian long bones. VL - 36 SP - 19 KW - biomechanics KW - bone_geometry KW - femur KW - humerus KW - ulna AU - Cubo, J AU - Casinos, A PY - 1998/02// UR - http://view.ncbi.nlm.nih.gov/pubmed/9526136 ER -