Rainoldi, Alberto and Cescon, Corrado and Bottin, Andrea and Casale, Roberto and Caruso, Ignazio (2004) Surface EMG alterations induced by underwater recording. Journal of Electromyography and Kinesiology, 14 (3). pp. 325-331. ISSN 1050-6411
Full text not available from this repository.Abstract
Background and Purpose: This study aims to verify if amplitude and spectral characteristics of surface EMG signal are modified due to recording in a wet environment. Methods: Isometric contractions of the biceps brachii muscle of ten subjects were performed in several different set-up combinations, both in dry (D) and in water from hydrotherapy pools (PW), with (PWM) or without moving the pool water and with (T) or without water-resistant adhesive taping. Results: In PW condition the amplitude of the recorded signal is reduced to 5–10% of the corresponding signal recorded in D condition. In PWM the power spectrum is drastically reduced and altered by the water movement that introduces an increase of spectral power in the frequency range 0–20 Hz. The use of T modality allows to record signals with both amplitude and spectral frequencies comparable with those obtained in the D conditions. Discussion and Conclusion: This work demonstrates the need for water resistant taping when EMG signals are recorded in water. Signals recorded without such a protective film are strongly affected in their amplitude and frequency characteristics by the conductivity and the movement of water.
| Item Type: | Scientific journal article, Newspaper article or Magazine article |
|---|---|
| Uncontrolled Keywords: | Adult, Artifacts, Bandages, Electrodes, Electromyography, Electromyography: instrumentation, Electromyography: methods, Equipment Failure Analysis, Equipment Failure Analysis: methods, Humans, Immersion, Isometric Contraction, Isometric Contraction: physiology, Male, Muscle, Reproducibility of Results,Sensitivity and Specificity, Skeletal,Skeletal: physiology,Water |
| Subjects: | Engineering > General engineering > Bioengineering, biomedical engineering & clinical engineering |
| Department/unit: | Dipartimento economia aziendale, sanità e sociale > Laboratorio di ricerca in riabilitazione |
| Depositing User: | Corrado Cescon |
| Date Deposited: | 13 Sep 2013 10:03 |
| Last Modified: | 14 May 2021 11:00 |
| URI: | http://repository.supsi.ch/id/eprint/2741 |
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