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EMG analysis of type IIb muscle fibe...

Sachs, Christina.

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EMG analysis of type IIb muscle fibers correlated with blood lactate accumulation.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	EMG analysis of type IIb muscle fibers correlated with blood lactate accumulation./
作者:	Sachs, Christina.
面頁冊數:	79 p.
附註:	Source: Masters Abstracts International, Volume: 42-04, page: 1247.
Contained By:	Masters Abstracts International42-04.
標題:	Health Sciences, Nutrition. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1418061
ISBN:	0496228420

EMG analysis of type IIb muscle fibers correlated with blood lactate accumulation.
Sachs, Christina.

EMG analysis of type IIb muscle fibers correlated with blood lactate accumulation. - 79 p.

Source: Masters Abstracts International, Volume: 42-04, page: 1247.

Thesis (M.A.)--University of Missouri - Columbia, 2003.

Purpose. It is hypothesized that recruitment of type IIb fibers leads to lactic acid accumulation. The recruitment hypothesis implies an increase of blood lactate concentration by increasing both activation and firing frequency of type IIb MUs. Therefore, the purpose of this study is to identify changes in the integrated EMG and EMG power spectrum that may signify a transition from type IIa to IIb recruitment. Results. Significant EMG changes were observed at lactate levels of greater than onset of blood lactate accumulation for integrated EMG for the distal channel, 0--50Hz for the distal channel, and 50--100Hz for the proximal and distal channels. No observable trends were found for mean power frequency or median power frequency for either channel. No significant differences were found among fitness levels. Conclusions. Results of the present investigation have implications that the recruitment of type IIb muscle fibers can be observed at onset of blood lactate accumulation using surface EMG analysis. (Abstract shortened by UMI.)

ISBN: 0496228420Subjects--Topical Terms:

1017801
Health Sciences, Nutrition.

EMG analysis of type IIb muscle fibers correlated with blood lactate accumulation.
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245 1 0 $a EMG analysis of type IIb muscle fibers correlated with blood lactate accumulation.
300 $a 79 p.
500 $a Source: Masters Abstracts International, Volume: 42-04, page: 1247.
500 $a Supervisor: Tom Thomas.
502 $a Thesis (M.A.)--University of Missouri - Columbia, 2003.
520 $a Purpose. It is hypothesized that recruitment of type IIb fibers leads to lactic acid accumulation. The recruitment hypothesis implies an increase of blood lactate concentration by increasing both activation and firing frequency of type IIb MUs. Therefore, the purpose of this study is to identify changes in the integrated EMG and EMG power spectrum that may signify a transition from type IIa to IIb recruitment. Results. Significant EMG changes were observed at lactate levels of greater than onset of blood lactate accumulation for integrated EMG for the distal channel, 0--50Hz for the distal channel, and 50--100Hz for the proximal and distal channels. No observable trends were found for mean power frequency or median power frequency for either channel. No significant differences were found among fitness levels. Conclusions. Results of the present investigation have implications that the recruitment of type IIb muscle fibers can be observed at onset of blood lactate accumulation using surface EMG analysis. (Abstract shortened by UMI.)
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