On the Muscular Composition of Lower Extremities of Apes Based on the Relative Weight
スポンサーリンク
概要
- 論文の詳細を見る
Characteristics of the muscular composition of the lower extremities of apes were made clear by comparison of relative weights of the lower extremities among several species of primates including man, and the significance of the characteristics was discussed.As materials, 10 specis, totalling 77 animals, were used: chimpazee, orang-utan, white handed gibbon, great siamang, hanuman langur, dusky lutong, wooly monkey, black spider monkey, Formosan monkey and Japanese monkey.To elucidate intra-species variation, many Japanese monkeys containing fetuses were examined. Adult Japanese monkeys do not show any remarkable individual, bilateral nor sexual differences. The relative weights of hip and thigh regions of fetus and infant are smaller than those of adult. While the relative weights of leg and foot are larger than those of adult. However, the differences in age are smaller than the differences between two species which have different locomotion pattern.In quadrupedal monkey including Japanese monkeys, the relative weight of biceps femoris, which is two joint muscle, is remarkably large, while in man, the bipedalist, biceps femoris is small and gluteus maximus, vastus intermedius, vastus medialis and soleus, which are one joint muscles, are large.As to apes, chimpanzees, gibbons and gorillas have small biceps femoris like man, and their gluteus maximus, vastus medialis and vastus intermedius, which are one joint muscles, are relatively larger than those of quadrupeds. The orang-utan has larger leg and foot muscles than do other species, but the relative weights of their muscles show the medium value between other apes and quadruped monkeys.The above characteristics of muscular compsition of apes are further discussed in comparison with the muscle actions clarified by EMG studies. This revealed that the muscular composition of apes are more similar to that of man which takes erect bipedalism than to that of quadrupeds.
- 日本人類学会の論文
日本人類学会 | 論文
- 静的姿勢の局所筋エネルギ-代謝量〔英文〕
- 局所筋エネルギ-代謝量の推定方法
- 寒冷適応に関する研究-1-心拍数変化および局所筋産熱の観点から
- 各種静的姿勢保持における筋活動量のエネルギ-代謝量及び拍数に及ぼす影響
- 現代ケニア人における抜歯風習