Relationship between Handleability of Slide-out Drawer and Upper Limb Load

  • SUGAMA Atsushi
    Graduate School of System Design, Tokyo Metropolitan University
  • SEO Akihiko
    Faculty of System Design, Tokyo Metropolitan University
  • DOI Kouki
    Faculty of System Design, Tokyo Metropolitan University

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Other Title
  • 引き出しの操作性と上肢負担の関係
  • ヒキダシ ノ ソウサセイ ト ジョウシ フタン ノ カンケイ

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Abstract

In this study, we investigated the relationship between handleability of slide-out drawer and the upper limb load. We used a slide-out drawer mock-up which fabricated from file cabinet. In this experiment, ten healthy male subjects were asked to pull out the slide-out drawer under the following nine conditions of slide-out drawer location with 20 N force : three installation height (vertical, horizontal and obliquely directions), three operational direction of the slide-out drawer (left 45 degrees from front, front and right 45 degrees from front). We estimated control force and the maximum torque ratio of the upper limb joints by six-axis load cell and 3 dimension attitude measurement sensor. We also measured upper limb and dorsal muscle activities with an electromyogram. Subjective easiness of pulling out the slide-out drawer and right upper limb load was recorded. The results showed that upper limb load influenced on subjective easiness of pulling out the slide-out drawer and right upper limb load.

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