Arm movement and EMG mean power frequency in the trapezius muscle: a comparison between surface and intramuscular recording techniques.


In a previous study it has been shown that there is a systematic variation of the EMG mean power frequency recorded under dynamic conditions with surface electrodes from non-fatigued trapezius muscle. The variation was most pronounced in relation to shoulder joint angle. The aim of the present study was to find out whether this variation was caused by… (More)


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