Druzinsky R E
Department of Anatomy and Cell Biology, University of Illinois, Chicago 60612.
J Theor Biol. 1993 Feb 21;160(4):427-40. doi: 10.1006/jtbi.1993.1028.
For a sample of 26 extant mammalian species, a significant relationship between body mass and chewing frequency was found, in which chewing frequency is proportional to body mass to the -0.128 power. This relationship is similar to previously published data relating stride frequency and body mass in quadrupedal mammals. It was also found that jaw length is proportional to body mass to the 0.312 power, which is consistent with geometric scaling of jaw length. The period of the chewing cycle was found to be proportional to jaw length to the 0.383 power. These results demonstrate that chewing frequency does not scale as metabolic rate, and support the suggestion that the natural frequency of the chewing rhythm may be derived from masses and lengths of the components of the masticatory apparatus alone.
对于26种现存哺乳动物的样本,发现体重与咀嚼频率之间存在显著关系,其中咀嚼频率与体重的-0.128次方成正比。这种关系类似于先前发表的关于四足哺乳动物步频与体重关系的数据。还发现颌骨长度与体重的0.312次方成正比,这与颌骨长度的几何缩放一致。咀嚼周期被发现与颌骨长度的0.383次方成正比。这些结果表明,咀嚼频率与代谢率不成比例,并支持这样的观点,即咀嚼节奏的自然频率可能仅源于咀嚼器官各组成部分的质量和长度。