Publication
Title
Controlled auxotonic twitch in papillary muscle : a new computer-based control approach
Author
Abstract
Based on new advancements in digital technology, we developed a PC- and DSP-based measurement and control system for isolated papillary muscle cxperiments. High flexibility was obtained through a three level control. Length or force was controlled real-time with a sample frequency of 5000 Hz. Muscle length and up to three Segment lengths were measured simultaneously and each of these lengths could he chosen as feedback variable. Individual algorithms were implemented for different twitch types. Batches of twitches were organized in experiment protocols. The system included a new twitch type, namely a controlled auxotonic twitch. In this twitch, the muscle acted against a virtual ideal spring. giving a proportional change in developed force and shortening. The value of the virtual spring constant could he set on-line or defined in the experiment protocol. An increasing virtual spring constant represented a smooth transition from isotonic to isometric conditions. (C) 2000 Academic Press.
Language
English
Source (journal)
Computers and biomedical research. - New York, N.Y.
Publication
New York, N.Y. : 2000
ISSN
0010-4809
Volume/pages
33:6(2000), p. 398-415
ISI
000166266500004
Full text (Publishers DOI)
Full text (publishers version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 03.01.2013
Last edited 26.05.2017
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