Physiological and perceptual responses to load-carrying in female subjects using internal and external frame backpacks

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      <subfield code="a">Physiological and perceptual responses to load-carrying in female subjects using internal and external frame backpacks</subfield>
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      <subfield code="a">The intent of the present study was to compare the metabolic, cardiorespiratory, and perceptual responses to carrying a US Army internal frame backpack in female subjects. To date, no previous studies have compared the physiological stresses encountered by females carrying two different types of frame packs</subfield>
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      <subfield code="t">Ergonomics</subfield>
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      <subfield code="g">Vol. 35, nº 4, April 1992 ; p. 445-455</subfield>
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