SCALING OF LIMB JOINT SURFACE-AREAS IN ANTHROPOID PRIMATES AND OTHER MAMMALS
SCALING OF LIMB JOINT SURFACE-AREAS IN ANTHROPOID PRIMATES AND OTHER MAMMALS
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DOI：
10.1111/j.1469-7998.1991.tb04391.x
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发表时间：
1991-04-01
影响因子：
2
通讯作者：
GOMBERG, N
中科院分区：
文献类型：
--
作者：
GODFREY, L;SUTHERLAND, M;GOMBERG, N
最近有报道称，灵长类动物的四肢关节表面积与体重呈正异速生长。这归因于负重的生物力学：较大的动物必须需要相对较大的关节表面来承受关节上相对较大的与体重相关的应力。我们的肱骨和股骨的几何形状和关节表面积的数据属于6个哺乳动物目（包括灵长类动物）的73种证明，正异速生长的关节表面积不是一个普遍的现象，哺乳动物和不能有它的基础之间的Anthropoidea在生物力学的承重。我们认为，在一定程度上，积极的异速生长缩放的关节表面积发生在灵长类动物，这是一个人工制品的位置行为之间的差异，不同的分类群体，也发生了很大的不同体重。此外，我们认为，在从运动狐猴到大熊猫的各种体型的哺乳动物中，功能相似的群体往往表现出：（1）线性尺寸（特别是直径和轴周长），彼此成正比;（2）关节表面积，线性尺寸的平方和体重的2/3次方成正比。换句话说，功能相似动物的四肢骨骼符合几何相似性（或骨骼等距）的理论模型。关节表面积相对大小的差异与功能不同的动物组之间力传递和运动潜力的差异有关。
Recently it was reported that limb joint surface areas scale positively allometrically with body weight in anthropoid primates. This was attributed to the biomechanics of weight bearing: larger animals must require relatively larger joint surfaces to withstand relatively greater weight-related stresses on the joints. Our data on humeral and femoral geometry and joint surface areas in 73 species belonging to six mammalian orders (including primates) demonstrate that positive allometry of joint surface areas is not a general phenomenon for mammals and cannot have its basis among Anthropoidea in the biomechanics of weight bearing. We argue that, to the extent that positive allometric scaling of joint surface areas occurs in anthropoid primates, it is an artifact of differences in positional behaviour among distinct taxonomic groups that also happen to differ widely in body weight. Furthermore, we argue that, among mammals ranging in body size from sportive lemurs to giant pandas, functionally similar groups tend to exhibit: (1) linear dimensions (especially diameters and shaft circumferences) that scale in direct proportion to each other; and (2) joint surface areas that scale in direct proportion to the squares of linear dimensions and to the 2/3 power of body mass. In other words, limb bones of functionally similar animals fit the theoretical model of geometric similarity (or skeletal isometry). Differences in relative sizes of joint surface areas are related to differences in force transmission and movement potential among functionally distinct groups of animals.