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- Title
Not all Oscillations are Rubbish: Forward Simulation of Quick-Release Experiments.
- Authors
Siebert, Tobias; Wagner, Heiko; Blickhan, Reinhard
- Abstract
Quick-release experiments often produce noticeable oscillations on the measured force and length data in the first few milliseconds after the force release. We measured oscillations in experiments with several species (Rattus norvegicus, Galea musteloides, Rana pipiens) and different experimental setups. These oscillations are generally ignored as artifacts. This study investigates the cause of the oscillations. A biomechanical model of the experimental setup was developed consisting of a geometric model describing the setup and a Hill-type muscle-tendon model including the force-length-velocity relation and a linear spring in series. Muscle properties of each muscle were determined by the ISOFIT method. Model calculations and forward simulations of quick-release experiments based on experimentally determined muscle properties reveal that the observed oscillations are not artifacts (instrument and control), but the result of interactions of muscle-tendon properties with the inertia of muscles, bones and lever system.
- Subjects
MUSCLES; OSCILLATIONS; EXPERIMENTAL design; RATS
- Publication
Journal of Mechanics in Medicine & Biology, 2003, Vol 3, Issue 1, p107
- ISSN
0219-5194
- Publication type
Article
- DOI
10.1142/S0219519403000648