GROWTH-RELATED CHANGE IN SPECIFIC FORCE BUT NOT IN SPECIFIC POWER OF RAT FAST SKELETAL-MUSCLE

被引：5

作者：

DEHAAN, A ^{[1
]}

DERUITER, CJ ^{[1
]}

LIND, A ^{[1
]}

SARGEANT, AJ ^{[1
]}

机构：

[1] UNIV AMSTERDAM,DEPT NEUROPHYSIOL,1105 AZ AMSTERDAM,NETHERLANDS

来源：

EXPERIMENTAL PHYSIOLOGY | 1992年 / 77卷 / 03期

关键词：

D O I：

10.1113/expphysiol.1992.sp003611

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

The effect of growth on the dynamic performance of rat medial gastrocnemius muscle was studied. From approximately 1.5 to 5 months of age specific force increased by 18 %. Reductions were found in both optimal stimulation frequency (from 120 to 100 Hz) and optimal shortening velocity (by 16 %) indicating that the fibres became slower. Specific power did not change during growth but was obtained at a lower shortening velocity. Possible mechanisms for the observed changes are discussed.

引用

页码：505 / 508

页数：4

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