The efficiency of mechanical power development during muscular shortening and its relation to load
The efficiency of mechanical power development during muscular shortening and its relation to load
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肌肉缩短过程中机械动力发展的效率及其与负荷的关系
DOI：
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发表时间：
1964
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影响因子：
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通讯作者：
A. Hill
中科院分区：
文献类型：
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作者：
A. Hill
当在维持的等渗收缩期间发生缩短时，正如Aubert（1956）以恒定速度缩短时，“效率”在整个过程中仍然非常恒定，即使在相当大的长度范围内。 p = 0和p = p0（等轴测图）。讨论的是，当P/p0 = v/v0 = 0·= 0·3时，在缩短过程中开发的机械能力的最新发现是最大的。它的最大值。
When shortening occurs during a maintained isotonic contraction, as Aubert (1956) found during shortening at constant speed, the ‘efficiency’ remains very constant throughout, even over a considerable range of length. The efficiency varies largely with the load P, being zero at P = 0 and P = P0 (isometric). Near its maximum around P /P0 = 0·5 the efficiency (in frog sartorii at 0 °C) is consistently about 0·45. The form of the relation between efficiency and load is discussed, particularly in view of recent findings on the heat of shortening of muscle. The mechanical power developed during shortening is greatest when P/P0 = v/v0 = about 0·3; but the efficiency here is only 3 to 5% less than its maximum.