Objective The aim of this study was to explore the efficacy of two different passive back-support exoskeleton (BSE) designs during repetitive lifting in different postures. Background Although BSEs have been proposed as a potential intervention for reducing physical demands, limited information is available about the impacts of different exoskeleton designs in diverse work scenarios. Method Eighteen participants (gender-balanced) performed lab-based simulations of repetitive lifting tasks. These tasks were performed in 12 different conditions, involving two BSEs and a control condition, two levels of lifting symmetry (symmetric and asymmetric), and two postures (standing and kneeling). Outcome measures described muscle activity and energy expenditure, along with perceived discomfort, balance, and usability. Results Using both BSEs significantly reduced peak activity of the trunk extensor muscles (by 10%-28%) and energy expenditure (by 4%-13%) in all conditions tested. Such reductions, though, were task dependent and differed between the two BSEs. In most of the tested conditions, using BSEs positively affected subjective responses regarding perceived exertion and usability. Conclusion Our results suggest that the beneficial effects of a BSE are task specific and depend on the specific BSE design approach. More work is needed, though, to better characterize this task specificity and to determine the generalizability of BSE effects on objective and subjective outcomes for a wider range of conditions and users. Application Our results provide new evidence to guide the selection and application of passive BSE designs in diverse lifting tasks.
机构:
Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Alemi, Mohammad Mehdi
Geissinger, Jack
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Virginia Polytech Inst & State Univ, Dept Comp Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Geissinger, Jack
Simon, Athulya A.
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Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Simon, Athulya A.
Chang, S. Emily
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Virginia Polytech Inst & State Univ, Dept Biomed Engn & Mech, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Chang, S. Emily
Asbeck, Alan T.
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Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
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Rehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Baltrusch, S. J.
van Dieen, J. H.
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Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
van Dieen, J. H.
Bruijn, S. M.
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Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Bruijn, S. M.
Koopman, A. S.
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Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Koopman, A. S.
van Bennekom, C. A. M.
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Rehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
van Bennekom, C. A. M.
Houdijk, H.
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Rehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
机构:
Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Alemi, Mohammad Mehdi
Geissinger, Jack
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h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Comp Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Geissinger, Jack
Simon, Athulya A.
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h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Simon, Athulya A.
Chang, S. Emily
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h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Biomed Engn & Mech, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
Chang, S. Emily
Asbeck, Alan T.
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机构:
Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USAVirginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA
机构:
Rehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Baltrusch, S. J.
van Dieen, J. H.
论文数: 0引用数: 0
h-index: 0
机构:
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
van Dieen, J. H.
Bruijn, S. M.
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h-index: 0
机构:
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Bruijn, S. M.
Koopman, A. S.
论文数: 0引用数: 0
h-index: 0
机构:
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Koopman, A. S.
van Bennekom, C. A. M.
论文数: 0引用数: 0
h-index: 0
机构:
Rehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
van Bennekom, C. A. M.
Houdijk, H.
论文数: 0引用数: 0
h-index: 0
机构:
Rehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands
Vrije Univ Amsterdam, Fac Behav & Movement Sci, Dept Human Movement Sci, Amsterdam, NetherlandsRehabil Ctr Heliomare, Dept Res & Dev, NL-1940 Wijk Aan Zee, Netherlands