Medizinische Universität Graz - Research portal
Selected Publication:
Rafolt, D; Gallasch, E; Fend, M; Bijak, M; Lanmüller, H; Mayr, W.
Functional electrical stimulation-induced surface muscle stiffness captured by computer-controlled tonometry.
Artif Organs. 2002; 26(3): 244-247.
Doi: 10.1046/j.1525-1594.2002.06943.x
Web of Science
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- Co-authors Med Uni Graz
- Gallasch Eugen
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- Abstract:
- 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.
- Find related publications in this database (using NLM MeSH Indexing)
- Biomechanics -
- Computer Systems -
- Humans -
- Leg -
- Muscle Contraction - physiology
- Muscle Relaxation - physiology
- Muscle, Skeletal - physiology
- Research Support, Non-U.S. Gov't - physiology
- Tonometry, Ocular - physiology
- Transcutaneous Electric Nerve Stimulation - physiology
- Find related publications in this database (Keywords)
- electrostimulation
- indentation
- muscle belly
- tissue mechanical properties