Rome Lawrence C., Lindstedt Stan L.
Department of Biology of the University of Pennsylvania, Philadelphia, PA 19104.
News Physiol Sci. 1998 Dec;13:261-268. doi: 10.1152/physiologyonline.1998.13.6.261.
Vertebrate sound-producing muscles can contract at frequencies greater than 100 Hz, a feat impossible in locomotory muscles. This is not accomplished by unique proteins or structures but by qualitative shifts in isoforms and quantitative reapportionment of structures. Speed comes with costs and trade-offs, however, that restrict how a muscle can be used.
脊椎动物的发声肌肉能够以高于100赫兹的频率收缩，这在运动肌肉中是不可能实现的壮举。这并非通过独特的蛋白质或结构达成，而是通过同工型的质性转变和结构的定量重新分配来实现。然而，速度是有代价和权衡的，这限制了肌肉的使用方式。
