Effects of Two Passive Back-Support Exoskeletons on Muscle Activity, Energy Expenditure, and Subjective Assessments During Repetitive Lifting

被引:83
作者
Alemi, Mohammad Mehdi [1 ]
Madinei, Saman [2 ]
Kim, Sunwook [2 ]
Srinivasan, Divya [2 ]
Nussbaum, Maury A. [2 ]
机构
[1] Harvard Med Sch, Dept Orthoped Surg, Boston, MA 02115 USA
[2] Virginia Tech, Ind & Syst Engn, Blacksburg, VA USA
关键词
exoskeleton usability; wearable technology; electromyography; metabolic demand; asymmetric lifting; OXYGEN-CONSUMPTION; ASSISTIVE DEVICE; PHYSICAL WORK; PREVENTION; PAIN; EMG; INTERVENTIONS; PERCEPTION; DISCOMFORT; WORKPLACE;
D O I
10.1177/0018720819897669
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
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.
引用
收藏
页码:458 / 474
页数:17
相关论文
共 45 条
  • [1] The effect of on-body lift assistive device on the lumbar 3D dynamic moments and EMG during asymmetric freestyle lifting
    Abdoli-E, Mohammad
    Stevenson, Joan M.
    [J]. CLINICAL BIOMECHANICS, 2008, 23 (03) : 372 - 380
  • [2] An on-body personal lift augmentation device (PLAD) reduces EMG amplitude of erector spinae during lifting tasks
    Abdoli-E, Mohammad
    Agnew, Michael J.
    Stevenson, Joan M.
    [J]. CLINICAL BIOMECHANICS, 2006, 21 (05) : 456 - 465
  • [3] Alemi M. M., MODELING METAB UNPUB
  • [4] Alemi MM., 2019, THESIS, V5, P1
  • [5] A passive exoskeleton reduces peak and mean EMG during symmetric and asymmetric lifting
    Alemi, Mohammad Mehdi
    Geissinger, Jack
    Simon, Athulya A.
    Chang, S. Emily
    Asbeck, Alan T.
    [J]. JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 2019, 47 : 25 - 34
  • [6] [Anonymous], 2018 LIB MUT WORKPL
  • [7] The effect of a passive trunk exoskeleton on metabolic costs during lifting and walking
    Baltrusch, S. J.
    van Dieen, J. H.
    Bruijn, S. M.
    Koopman, A. S.
    van Bennekom, C. A. M.
    Houdijk, H.
    [J]. ERGONOMICS, 2019, 62 (07) : 903 - 916
  • [8] Exercise for the Primary, Secondary and Tertiary Prevention of Low Back Pain in the Workplace: A Systematic Review
    Bell, Julie Ann
    Burnett, Angus
    [J]. JOURNAL OF OCCUPATIONAL REHABILITATION, 2009, 19 (01) : 8 - 24
  • [9] High-quality controlled trials on preventing episodes of back problems: systematic literature review in working-age adults
    Bigos, Stanley J.
    Holland, John
    Holland, Carole
    Webster, John S.
    Battie, Michele
    Malmgren, Judith A.
    [J]. SPINE JOURNAL, 2009, 9 (02) : 147 - 168
  • [10] Bilzon JLJ, 2001, ERGONOMICS, V44, P766, DOI 10.1080/00140130118253