| Autor: |
Rafolt, Dietmar, Gallasch, Eugen, Fend, Martin, Bijak, Manfred, Lanmüller, Hermann, Mayr, Winfried |
| Předmět: |
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| Zdroj: |
Artificial Organs; Mar2002, Vol. 26 Issue 3, p244-247, 4p |
| Abstrakt: |
A new tonometric test system to assess surface stiffness over relaxed and activated calf muscles was developed. The mechanical arrangement consists of a skin indentor driven by a torque motor (galvo-drive) that is rigidly connected to an ankle dynamometer. The indentation depth is measured by a displacement transducer. Software routines for cyclic indentation (recording of stiffness curves), static indentation (sensing of twitch responses), and vibration (skin resonance) were implemented. A visual interface is used to capture surface stiffness during target contractions and during controlled relaxation. For functional electrical stimulation (FES) applications, the software includes a pulse train synthesizer to generate arbitrary stimulation test patterns. The system's performance was tested in FES and voluntary contraction procedures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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