Subjective and objective evaluation of shoulder muscle fatigue

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      <subfield code="a">In order to relate EMG signs of localized muscle fatigue to subjectively perceived muscle fatigue, a study was undertaken on 20 healthy volunteers exposing their right trapezius muscle by raising the arm to 90º of abduction. Every person performed two contractions: 0 Kg hand load during 5 min and 2 Kg hand load during 2-5 min. Surface EMG was recorded and analysed with respect to RMS amplitude and mean power frequency (MPF)</subfield>
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      <subfield code="a">Ergonomics</subfield>
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      <subfield code="t">Ergonomics</subfield>
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      <subfield code="g">Vol. 37, nº 8, August 1994 ; p. 1323-1333</subfield>
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