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Spectral properties of H-reflex recordings after an acute bout of whole-body vibration

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dc.creator Kipp, Kristof
dc.creator Johnson, Samuel T.
dc.creator Hoffman, Mark A.
dc.date.accessioned 2012-08-20T21:11:55Z
dc.date.available 2013-10-15T22:18:26Z
dc.date.issued 2012-07
dc.identifier.citation Kipp, K., Johnson, S. T., & Hoffman, M. A. (2012, July). Spectral properties of H-reflex recordings after an acute bout of whole-body vibration. Journal of Strength and Conditioning Research, 26(7), 1915-1919. doi:10.1519/JSC.0b013e3182392ae9 en_US
dc.identifier.uri http://hdl.handle.net/1957/32631
dc.description This is a non-final version of an article published in final form in Kipp, K., Johnson, S. T., & Hoffman, M. A. (2012, July). Spectral properties of H-reflex recordings after an acute bout of whole-body vibration. Journal of Strength and Conditioning Research, 26(7), 1915-1919. doi:10.1519/JSC.0b013e3182392ae9. You can find the journal here: http://journals.lww.com/nsca-jscr/pages/default.aspx
dc.description.abstract Although research supports the use of whole-body vibration (WBV) to improve neuromuscular performance, the mechanisms for these improvements remain unclear. The purpose of this study was to identify the effect of WBV on the spectral properties of electrically evoked H-reflex recordings in the soleus (SOL) muscle. The H-reflex recordings were measured in the SOL muscle of 20 participants before and after a bout of WBV. The H-reflexes were evoked every 15 seconds for 150 seconds after WBV. A wavelet procedure was used to extract spectral data, which were then quantified with a principle components analysis. Resultant principle component scores were used for statistical analysis. The analysis extracted 1 principle component associated with the intensity of the myoelectric spectra and 1 principle component associated with the frequency. The scores of the principle component that were related to the myoelectric intensity were smaller at 30 and 60 milliseconds after WBV than before WBV. The WBV transiently decreased the intensity of myoelectric spectra during electrically evoked contractions, but it did not influence the frequency of the spectra. The decrease in intensity likely indicates a smaller electrically evoked muscle twitch response, whereas the lack of change in frequency would indicate a similar recruitment pattern of motor units before and after WBV. en_US
dc.language.iso en_US en_US
dc.publisher National Strength and Conditioning Association en_US
dc.relation.ispartofseries Journal of Strength and Conditioning Research en_US
dc.relation.ispartofseries Vol. 26 no. 7 en_US
dc.subject Neuromuscular en_US
dc.subject Frequency en_US
dc.subject Motor unit en_US
dc.subject Vibration en_US
dc.title Spectral properties of H-reflex recordings after an acute bout of whole-body vibration en_US
dc.type Article en_US
dc.description.peerreview yes en_US
dc.identifier.doi 10.1519/JSC.0b013e3182392ae9
dc.description.embargopolicy Repository Administrators


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