VELOCITY-LENGTH-TIME RELATIONS IN CANINE TRACHEAL SMOOTH-MUSCLE
VELOCITY-LENGTH-TIME RELATIONS IN CANINE TRACHEAL SMOOTH-MUSCLE
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DOI：
10.1152/jappl.1988.64.5.2053
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发表时间：
1988-05-01
影响因子：
3.3
通讯作者：
STEPHENS, NL
中科院分区：
文献类型：
--
作者：
SEOW, CY;STEPHENS, NL
Zero-load velocity (VO) as a function of the length of canine tracheal smooth muscle was obtained by applying zero-load clamps to isotonically contracting muscle under various loads. The load clamps were applied at a specific time after onset of contraction. The magnitude of the isotonic load therefore determines the length of the muscle at the moment of release or at the moment the unloaded shortening velocity was measured. A family of such VO-muscle length (L) curves was obtained at 1-s intervals in the time course of contraction. The Vo-L curve was fitted by a parabolic function with satisfactory goodness of fit. The maximum shortening velocity at opptimum muscle length varied with time, but the minimum length at which VO diminished to zero was time independent.
