Reliability of the mechanomyogram detected with an accelerometer during voluntary contractions
Medical and Biological Engineering and Computing, ISSN: 0140-0118, Vol: 41, Issue: 2, Page: 198-202
2003
- 66Citations
- 55Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations66
- Citation Indexes66
- 66
- CrossRef52
- Captures55
- Readers55
- 55
Article Description
The accelerometer is used for mechanomyogram (MMG) recordings of muscle contractions. Although the mechanical characteristics of other MMG transducers have been determined with reference to the accelerometer, mechanical aspects of the accelerometer itself, including the weight of the transducer, have not been verified. This study was designed to reinvestigate the mechanical variable of the MMG signal detected with an accelerometer, with reference to a laser distance sensor (LDS), and then to clarify the influence of the accelerometer weight on the MMG recording during muscle contractions. The study was performed during mechanical sinusoidal vibrations and during voluntary contractions of the quadriceps muscle. Maximum differences in the amplitude spectral density functions between the LDS signal and the double integral of the accelerometer signal were approximately 4μm. The results verified that the MMG signal from the accelerometer accurately reflected the acceleration of body surface vibration. However, the MMG signal was gradually distorted when weight was added to the accelerometer: the addition of 4.0 g (total 6.0 g, including 2.0 g of accelerometer) substantially attenuated the MMG signal. The results suggest that the appropriate weight for the accelerometer should be less than 5.0 g for measurements of the quadriceps muscle and indicate that the transducer weight must be taken into account for accurate measurement of muscles of different sizes.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0037356499&origin=inward; http://dx.doi.org/10.1007/bf02344888; http://www.ncbi.nlm.nih.gov/pubmed/12691440; https://link.springer.com/10.1007/BF02344888; https://dx.doi.org/10.1007/bf02344888; https://link.springer.com/article/10.1007/BF02344888; http://www.springerlink.com/index/10.1007/BF02344888; http://www.springerlink.com/index/pdf/10.1007/BF02344888
Springer Science and Business Media LLC
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