Validity of self-reporting and video-recording for measuring knee-straining work postures
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<subfield code="a">The aim of this study was to compare the validity of self-reporting and video-recording as methods of measuring the duration of knee-straining work postures , and to evaluate the reproducibility of timings of the video-recordings. Estimation of self-reported knee-straining work collected by interview showed good correlation with measurements of video-recordings. When judging the repeatability of timings of knee-straining work from the video-recordings, a high level of agreement was seen between the two observers in the 13 anual measurements of time spent in knee-straining work positions.</subfield>
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<subfield code="g">Vol. 43 nº 3, March 2000 ; p. 310-316</subfield>
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