The essential details of fatigue processes as they develop in a properly prepared protoplasmic system like that of a frog muscle, are conveniently transcribed by the writing lever either upon a kymograph drum revolving comparatively rapidly, or one going very slowly and these records furnish data for subsequent analysis. In each procedure some facts' are obtained as to amplitude, enhancing and diminution of responses under a given rate of stimulation and under certain physical and physiological conditions, but unfortunately neither method alone suffices for the proper analysis of the whole process. Although details of mechanical devices differ somewhat in the two methods the muscle is usually mounted in a moist chamber in such a way as to move at each response a counter-poised muscle lever which in turn transcribes its movement upon the surface of the drum.
Proceedings of the Iowa Academy of Science
©1922 Iowa Academy of Science, Inc.
Baldwin, Francis Marsh
"Simultaneous Fast and Slow Drum Records of Fatigue,"
Proceedings of the Iowa Academy of Science, 29(1), 199-209.
Available at: https://scholarworks.uni.edu/pias/vol29/iss1/48