1
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Mohamed Refai MI, Moya-Esteban A, van Zijl L, van der Kooij H, Sartori M. Benchmarking commercially available soft and rigid passive back exoskeletons for an industrial workplace. Wearable Technol 2024; 5:e6. [PMID: 38510984 PMCID: PMC10952052 DOI: 10.1017/wtc.2024.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/22/2023] [Accepted: 01/19/2024] [Indexed: 03/22/2024]
Abstract
Low-back pain is a common occupational hazard for industrial workers. Several studies show the advantages of using rigid and soft back-support passive exoskeletons and exosuits (exos) to reduce the low-back loading and risk of injury. However, benefits of using these exos have been shown to be task-specific. Therefore, in this study, we developed a benchmarking approach to assess exos for an industrial workplace at Hankamp Gears B.V. We assessed two rigid (Laevo Flex, Paexo back) and two soft (Auxivo Liftsuit 1.0, and Darwing Hakobelude) exos for tasks resembling the workplace. We measured the assistive moment provided by each exo and their respective influence on muscle activity as well as the user's perception of comfort and exertion. Ten participants performed four lifting tasks (Static hold, Asymmetric, Squat, and Stoop), while their electromyography and subjective measures were collected. The two rigid exos provided the largest assistance during the Dynamic tasks. Reductions in erector spinae activity were seen to be task-specific, with larger reductions for the two rigid exos. Overall, Laevo Flex offered a good balance between assistive moments, reductions in muscle activity, as well as user comfort and reductions in perceived exertion. Thus, we recommend benchmarking exos for intended use in the industrial workplace. This will hopefully result in a better adoption of the back-support exoskeletons in the workplace and help reduce low-back pain.
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Affiliation(s)
| | - Alejandro Moya-Esteban
- Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands
| | - Lynn van Zijl
- Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands
| | - Herman van der Kooij
- Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands
| | - Massimo Sartori
- Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands
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2
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Musso M, Oliveira AS, Bai S. Influence of an upper limb exoskeleton on muscle activity during various construction and manufacturing tasks. Appl Ergon 2024; 114:104158. [PMID: 37890312 DOI: 10.1016/j.apergo.2023.104158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/31/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023]
Abstract
Musculoskeletal disorders (MSDs) significantly impact workers in the manufacturing and construction sectors. One solution that has gained interest to reduce MSDs incidence is the use of exoskeletons. In this study, the influence of an upper limb exoskeleton on muscle activity was investigated experimentally for three commonly performed tasks in the manufacturing and construction sectors. The tasks tested were overhead assembly, bricklaying, and box moving tasks. Eighteen males participated in the tests. The results showed a reduction in shoulder flexor muscle activation during all three tasks (up to -45.46 ± 4.52% for the anterior deltoid), but increased extensor activation (up to 15.47 ± 8.01% for the latissimus dorsi) was observed when the task was not primarily performed above shoulder level. The results revealed the dependence of the upper-body exoskeleton on tasks and arm posture, which should be considered for both in-field applications and designing new exoskeletons for performance enhancement.
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Affiliation(s)
- Matteo Musso
- Department of Material and Production, Aalborg University, Fredrik Bajers Vej 7K, Aalborg, 9220, Denmark.
| | - Anderson Souza Oliveira
- Department of Material and Production, Aalborg University, Fredrik Bajers Vej 7K, Aalborg, 9220, Denmark.
| | - Shaoping Bai
- Department of Material and Production, Aalborg University, Fredrik Bajers Vej 7K, Aalborg, 9220, Denmark.
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3
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Rafique S, Rana SM, Bjorsell N, Isaksson M. Evaluating the advantages of passive exoskeletons and recommendations for design improvements. J Rehabil Assist Technol Eng 2024; 11:20556683241239875. [PMID: 38524246 PMCID: PMC10958811 DOI: 10.1177/20556683241239875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 03/01/2024] [Indexed: 03/26/2024] Open
Abstract
Construction and manufacturing workers undertake physically laborious activities which put them at risk of developing serious musculoskeletal disorders (MSDs). In the EU, millions of workers are being affected by workplace-related MSDs, inflicting huge financial implications on the European economy. Besides that, increased health problems and financial losses, severe shortages of skilled labor also emerge. The work aims to create awareness and accelerate the adoption of exoskeletons among SMEs and construction workers to reduce MSDs. Large-scale manufacturers and automobile assemblers are more open to adopt exoskeletons, however, the use of exoskeletons in small and medium enterprises (SMEs) is still not recognized. This paper presents an experimental study demonstrating the advantages of different exoskeletons while performing workers' tasks. The study illustrates how the use of certain upper and lower body exoskeletons can reduce muscle effort. The muscle activity of the participants was measured using EMG sensors and was compared while performing designated tasks. It was found that up to 60% reduction in human effort can be achieved while performing the same tasks using exoskeletons. This can also help ill workers in rehabilitation and putting them back to work. The study concludes with pragmatic recommendations for future exoskeletons.
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Affiliation(s)
- Sajid Rafique
- Department of Electrical Engineering, Mathematics, and Science, University of Gävle, Gävle, Sweden
| | - Shaikh Masud Rana
- Department of Electrical Engineering, Mathematics, and Science, University of Gävle, Gävle, Sweden
| | - Niclas Bjorsell
- Department of Electrical Engineering, Mathematics, and Science, University of Gävle, Gävle, Sweden
| | - Magnus Isaksson
- Faculty of Health and Occupational Studies, University of Gävle, Gävle, Sweden
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4
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Hussain M, Kong YK, Park SS, Shim HH, Park J. Exoskeleton Usability Questionnaire: a preliminary evaluation questionnaire for the lower limb industrial exoskeletons. Ergonomics 2023:1-10. [PMID: 38111360 DOI: 10.1080/00140139.2023.2289856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 11/26/2023] [Indexed: 12/20/2023]
Abstract
Exoskeleton robots are a promising solution to reduce musculoskeletal disorders (MSDs) in different work environments, but a specific usability scale for evaluating them is lacking. This study aimed to develop and verify a preliminary Exoskeleton Usability Questionnaire (EUQ) for the lower limb exoskeletons by creating a draft survey questionnaire from existing questions in prior studies. An experiment was conducted with 20 participants who performed a specific task while wearing three lower limb robots and provided subjective feedback using the developed questionnaire. Data were analysed using exploratory and confirmatory factor analysis (CFA), resulting in a usability evaluation questionnaire for exoskeleton robots clustered into four main factors: mobility, adjustability, handling and safety. This study's findings are expected to be useful in evaluating the usability of the lower limb exoskeletons in both general production sites and agricultural work, which can aid in reducing the prevalence of lower limb MSDs.Practitioner Summary: This study developed a preliminary subjective usability evaluation questionnaire for exoskeleton robots. The questionnaire is clustered into four main factors: mobility, adjustability, handling and safety. These findings provide a valuable tool for assessing exoskeleton usability, potentially reducing musculoskeletal disorders (MSDs) in various work environments.
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Affiliation(s)
- Muhammad Hussain
- Department of Computer Science, University of York, York, UK
- Department of Industrial and Management Engineering, Incheon National University (INU), Incheon, Republic of Korea
| | - Yong-Ku Kong
- Department of Industrial Engineering, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Sang-Soo Park
- Department of Industrial Engineering, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Hyun-Ho Shim
- Department of Industrial Engineering, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Jaehyun Park
- Department of Industrial and Management Engineering, Incheon National University (INU), Incheon, Republic of Korea
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5
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Kim S, Ojelade A, Moore A, Gutierrez N, Harris-Adamson C, Barr A, Srinivasan D, Rempel DM, Nussbaum MA. Understanding contributing factors to exoskeleton use-intention in construction: a decision tree approach using results from an online survey. Ergonomics 2023:1-14. [PMID: 38085690 DOI: 10.1080/00140139.2023.2289859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023]
Abstract
Work-related musculoskeletal disorders (WMSDs) are a major health concern in the construction industry. Occupational exoskeletons (EXOs) are a promising ergonomic intervention to help reduce WMSD risk. Their adoption, however, has been low in construction. To understand the contributing factors to EXO use-intention and assist in future decision-making, we built decision trees to predict responses to each of three EXO use-intention questions (Try, Voluntary Use, and Behavioural Intention), using online survey responses. Variable selection and hyperparameter tuning were used respectively to reduce the number of potential predictors and improve prediction performance. The importance of variables in each final tree was calculated to understand which variables had a greater influence. The final trees had moderate prediction performance. The root node of each tree included EXOs becoming standard equipment, fatigue reduction, or performance increase. Important variables were found to be quite specific to different decision trees. Practical implications of the findings are discussed.Practitioner summary: This study used decision trees to identify key factors influencing the use-intention of occupational exoskeletons (EXOs) in construction, using online survey data. Key factors identified included EXOs becoming standard equipment, fatigue reduction, and performance improvement. Final trees provide intuitive visual representations of the decision-making process for workers to use EXOs.
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Affiliation(s)
- Sunwook Kim
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Aanuoluwapo Ojelade
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Albert Moore
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Nancy Gutierrez
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | | | - Alan Barr
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Divya Srinivasan
- Department of Industrial Engineering, Clemson University, Clemson, SC, USA
| | - David M Rempel
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Maury A Nussbaum
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, USA
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Hybart R, Ferris D. Gait variability of outdoor vs treadmill walking with bilateral robotic ankle exoskeletons under proportional myoelectric control. PLoS One 2023; 18:e0294241. [PMID: 37956157 PMCID: PMC10642814 DOI: 10.1371/journal.pone.0294241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Lower limb robotic exoskeletons are often studied in the context of steady-state treadmill walking in laboratory environments. However, the end goal of these devices is often adoption into our everyday lives. To move outside of the laboratory, there is a need to study exoskeletons in real world, complex environments. One way to study the human-machine interaction is to look at how the exoskeleton affects the user's gait. In this study we assessed changes in gait spatiotemporal variability when using a robotic ankle exoskeleton under proportional myoelectric control both inside on a treadmill and outside overground. We hypothesized that walking with the exoskeletons would not lead to significant changes in variability inside on a treadmill or outside compared to not using the exoskeletons. In addition, we hypothesized that walking outside would lead to higher variability both with and without the exoskeletons compared to treadmill walking. In support of our hypothesis, we found significantly higher coefficients of variation of stride length, stance time, and swing time when walking outside both with and without the exoskeleton. We found a significantly higher variability when using the exoskeletons inside on the treadmill, but we did not see significantly higher variability when walking outside overground. The value of this study to the literature is that it emphasizes the importance of studying exoskeletons in the environment in which they are meant to be used. By looking at only indoor gait spatiotemporal measures, we may have assumed that the exoskeletons led to higher variability which may be unsafe for certain target populations. In the context of the literature, we show that variability due to robotic ankle exoskeletons under proportional myoelectric control does not elicit different changes in stride time variability than previously found in other daily living tasks (uneven terrain, load carriage, or cognitive tasks).
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Affiliation(s)
- Rachel Hybart
- J. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Gainesville, Florida, United States of America
| | - Daniel Ferris
- J. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Gainesville, Florida, United States of America
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Massardi S, Briem K, Veneman JF, Torricelli D, Moreno JC. Re-defining wearable robots: a multidisciplinary approach towards a unified terminology. J Neuroeng Rehabil 2023; 20:149. [PMID: 37936173 PMCID: PMC10631060 DOI: 10.1186/s12984-023-01269-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 10/17/2023] [Indexed: 11/09/2023] Open
Abstract
Effective communication is especially important in the wearable robots (WRs) community, which encloses a great variety of devices across different application domains, e.g., healthcare, occupational, and consumer. In this paper we present a vocabulary of terms with the aim to create a common understanding of terms and concepts among the different fields of expertise relevant in the WRs community. Our goal is to develop shared documentation that could serve as a reference to facilitate the use of accepted definitions in the field. The presented vocabulary is the result of different focus group discussions among experts in the field. The resulting document was then validated by presenting it to the WR community through an online survey. The results of the survey highlight a strong agreement in terms of acceptance of the vocabulary, its usefulness, and applicability of the proposed definitions as well as an overall appreciation for its purpose and target. This work represents a pilot study providing unique material for the WR community, encouraging the use of shared agreed definitions. The reported version of the vocabulary has been made available as a live document in a github repository, for public commenting and further improvements.
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Affiliation(s)
- Stefano Massardi
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain
- Department of Mechanical and Industrial Engineering (DIMI), University of Brescia, Brescia, Italy
| | - Kristín Briem
- Centre of Movement Science, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | | | - Diego Torricelli
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain.
| | - Juan C Moreno
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain
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8
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Golabchi A, Riahi N, Fix M, Miller L, Rouhani H, Tavakoli M. A framework for evaluation and adoption of industrial exoskeletons. Appl Ergon 2023; 113:104103. [PMID: 37499526 DOI: 10.1016/j.apergo.2023.104103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023]
Abstract
Work-related Musculoskeletal Disorders (WMSDs) account for a significant portion of worker illnesses and injuries, resulting in high costs and productivity losses to employers globally. In recent years, there has been an increased interest in the use of exoskeleton technology to reduce rates of WMSDs in industrial worksites. Despite the potential of exoskeletons to mitigate the risks of WMSDs, the required steps to properly assess and implement the technology for industrial applications are not clear. This paper proposes a framework that can help organizations successfully evaluate and adopt industrial exoskeletons. Through a focus group of industry professionals, researchers, and exoskeleton experts, and by building on existing literature, an overarching adoption framework is developed. The identified stages and tasks within the framework enable an organization to evaluate and adopt exoskeletons through a systematic approach and to identify the existing gaps in their technology adoption process. The findings also highlight the areas where further studies are needed to promote the adoption of industrial exoskeletons, including large-scale field studies and long-term monitoring.
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Affiliation(s)
- Ali Golabchi
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada; EWI Works International Inc, Edmonton, Alberta, T6G 1H9, Canada.
| | - Negar Riahi
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Mackenzie Fix
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Linda Miller
- EWI Works International Inc, Edmonton, Alberta, T6G 1H9, Canada
| | - Hossein Rouhani
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Mahdi Tavakoli
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
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9
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Fournier DE, Yung M, Somasundram KG, Du BB, Rezvani S, Yazdani A. Quality, productivity, and economic implications of exoskeletons for occupational use: A systematic review. PLoS One 2023; 18:e0287742. [PMID: 37368889 DOI: 10.1371/journal.pone.0287742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
The objective of this systematic review was to synthesize the current state of knowledge on the quality and productivity of workers and their work while wearing exoskeletons, as well as the economic implications of exoskeletons for occupational use. Following the PRISMA guidelines, six databases were systematically searched for relevant journal articles, written in English, and published since January 2000. Articles meeting the inclusion criteria had their quality assessed using JBI's Checklist for Quasi-Experimental Studies (Non-Randomized Experimental Studies). A total of 6,722 articles were identified and 15 articles focusing on the impact of exoskeletons on quality and productivity of exoskeleton users while performing occupational tasks were included in this study. None of the included articles evaluated the economic implications of exoskeletons for occupational use. This study revealed several quality and productivity measures (e.g., endurance time, task completion time, number of errors, number of task cycles completed) used to evaluate the impact of exoskeletons. The current state of the literature suggests that quality and productivity impacts of exoskeleton use are dependent on task characteristics that should be considered when adopting exoskeletons. Future studies should evaluate the impact of exoskeleton use in the field and on a diverse pool of workers, as well as its economic implications to better support decision-making in the adoption of exoskeletons within organizations.
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Affiliation(s)
- Daniel E Fournier
- Canadian Institute for Safety, Wellness & Performance, School of Business, Conestoga College Institute of Technology and Advanced Learning, Ontario, Canada
| | - Marcus Yung
- Canadian Institute for Safety, Wellness & Performance, School of Business, Conestoga College Institute of Technology and Advanced Learning, Ontario, Canada
| | - Kumara G Somasundram
- Canadian Institute for Safety, Wellness & Performance, School of Business, Conestoga College Institute of Technology and Advanced Learning, Ontario, Canada
| | - Bronson B Du
- Canadian Institute for Safety, Wellness & Performance, School of Business, Conestoga College Institute of Technology and Advanced Learning, Ontario, Canada
| | - Sara Rezvani
- Canadian Institute for Safety, Wellness & Performance, School of Business, Conestoga College Institute of Technology and Advanced Learning, Ontario, Canada
| | - Amin Yazdani
- Canadian Institute for Safety, Wellness & Performance, School of Business, Conestoga College Institute of Technology and Advanced Learning, Ontario, Canada
- School of Public Health and Health Systems, University of Waterloo, Ontario, Canada
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Li-Baboud YS, Virts A, Bostelman R, Yoon S, Rahman A, Rhode L, Ahmed N, Shah M. Evaluation Methods and Measurement Challenges for Industrial Exoskeletons. Sensors (Basel) 2023; 23:5604. [PMID: 37420770 DOI: 10.3390/s23125604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 07/09/2023]
Abstract
In recent years, exoskeleton test methods for industrial exoskeletons have evolved to include simulated laboratory and field environments. Physiological, kinematic, and kinetic metrics, as well as subjective surveys, are used to evaluate exoskeleton usability. In particular, exoskeleton fit and usability can also impact the safety of exoskeletons and their effectiveness at reducing musculoskeletal injuries. This paper surveys the state of the art in measurement methods applied to exoskeleton evaluation. A notional classification of the metrics based on exoskeleton fit, task efficiency, comfort, mobility, and balance is proposed. In addition, the paper describes the test and measurement methods used in supporting the development of exoskeleton and exosuit evaluation methods to assess their fit, usability, and effectiveness in industrial tasks such as peg in hole, load align, and applied force. Finally, the paper includes a discussion of how the metrics can be applied towards a systematic evaluation of industrial exoskeletons, current measurement challenges, and future research directions.
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Affiliation(s)
- Ya-Shian Li-Baboud
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Ann Virts
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Roger Bostelman
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Smart HLPR LLC, Troutman, NC 28166, USA
| | - Soocheol Yoon
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Institute for Soft Matter, Georgetown University, Washington, DC 20057, USA
| | - Amaan Rahman
- Department of Electrical Engineering, Albert Nerken School of Engineering, The Cooper Union for the Advancement of Science and Art, New York, NY 10003, USA
| | - Lucia Rhode
- Department of Electrical Engineering, Albert Nerken School of Engineering, The Cooper Union for the Advancement of Science and Art, New York, NY 10003, USA
| | - Nishat Ahmed
- Department of Electrical Engineering, Albert Nerken School of Engineering, The Cooper Union for the Advancement of Science and Art, New York, NY 10003, USA
| | - Mili Shah
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Department of Mathematics, Albert Nerken School of Engineering, The Cooper Union for the Advancement of Science and Art, New York, NY 10003, USA
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11
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Mahmud D, Bennett ST, Zhu Z, Adamczyk PG, Wehner M, Veeramani D, Dai F. Identifying Facilitators, Barriers, and Potential Solutions of Adopting Exoskeletons and Exosuits in Construction Workplaces. Sensors (Basel) 2022; 22:s22249987. [PMID: 36560355 PMCID: PMC9785667 DOI: 10.3390/s22249987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 05/31/2023]
Abstract
Exoskeletons and exosuits (collectively termed EXOs) have the potential to reduce the risk of work-related musculoskeletal disorders (WMSDs) by protecting workers from exertion and muscle fatigue due to physically demanding, repetitive, and prolonged work in construction workplaces. However, the use of EXOs in construction is in its infancy, and much of the knowledge required to drive the acceptance, adoption, and application of this technology is still lacking. The objective of this research is to identify the facilitators, barriers, and corresponding solutions to foster the adoption of EXOs in construction workplaces through a sequential, multistage Delphi approach. Eighteen experts from academia, industry, and government gathered in a workshop to provide insights and exchange opinions regarding facilitators, barriers, and potential solutions from a holistic perspective with respect to business, technology, organization, policy/regulation, ergonomics/safety, and end users (construction-trade professionals). Consensus was reached regarding all these perspectives, including top barriers and potential solution strategies. The outcomes of this study will help the community gain a comprehensive understanding of the potential for EXO use in the construction industry, which may enable the development of a viable roadmap for the evolution of EXO technology and the future of EXO-enabled workers and work in construction workplaces.
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Affiliation(s)
- Dilruba Mahmud
- Wadsworth Department of Civil and Environmental Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Sean T. Bennett
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Zhenhua Zhu
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Peter G. Adamczyk
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Michael Wehner
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Dharmaraj Veeramani
- Department of Industrial and Systems Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Fei Dai
- Wadsworth Department of Civil and Environmental Engineering, West Virginia University, Morgantown, WV 26506, USA
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12
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Musso M, Oliveira AS, Bai S. Modeling of a Non-Rigid Passive Exoskeleton-Mathematical Description and Musculoskeletal Simulations. Robotics 2022; 11:147. [DOI: 10.3390/robotics11060147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
There is a growing application of passive exoskeletons in the industrial sector with the purpose to reduce the incidence of work-related musculoskeletal disorders (MSDs). Nowadays, while many passive shoulder exoskeletons have been developed to support overhead tasks, they present limitations in supporting tasks such as load lifting and carrying. Further developments are therefore needed to have a wider application of these devices in the industrial sector. This paper presents a modelling procedure of a passive non-rigid exoskeleton for shoulder support that can be used to evaluate the device in its development phase. The modelling began with the definition of the equations to describe the exoskeleton kinematics and dynamics to obtain the support force profile provided by the device over the shoulder flexion angle. A musculoskeletal simulation software was then used to evaluate the effect of the device on the human body. The computed support force profile is in agreement with the purpose of the device, with the maximal support force obtained for a shoulder flexion angle of 85–90°. The maximum support force value had the same magnitude as the one reported by the device user manual (3.5 kg). In particular, for a determined exoskeleton configuration, the maximum support force value computed was 34.3 N, equal to the reported by the manufacturer. The subsequent musculoskeletal simulation showed the ability of the device to reduce the muscular activation of agonist muscles such as the anterior deltoid (−36.01%) compared to the case when the exoskeleton is not used. The musculoskeletal results showed a positive effect of the device on the joint reaction forces at the glenohumeral joint with a reduction up to 41.91%. Overall the methodology and the mathematical model proposed can be used to further develop these devices, making them suitable for a wider range of tasks.
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13
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Shi Y, Dong W, Lin W, Gao Y. Soft Wearable Robots: Development Status and Technical Challenges. Sensors (Basel) 2022; 22:7584. [PMID: 36236683 PMCID: PMC9573304 DOI: 10.3390/s22197584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/25/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
In recent years, more and more research has begun to focus on the flexible and lightweight design of wearable robots. During this process, many novel concepts and achievements have been continuously made and shown to the public, while new problems have emerged at the same time, which need to be solved. In this paper, we give an overview of the development status of soft wearable robots for human movement assistance. On the basis of a clear definition, we perform a system classification according to the target assisted joint and attempt to describe the overall prototype design level in related fields. Additionally, it is necessary to sort out the latest research progress of key technologies such as structure, actuation, control and evaluation, thereby analyzing the design ideas and basic characteristics of them. Finally, we discuss the possible application fields, and propose the main challenges of this valuable research direction.
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Schalk M, Schalk I, Bauernhansl T, Siegert J, Schneider U. Influence of Exoskeleton Use on Cardiac Index. Hearts 2022; 3:117-128. [DOI: 10.3390/hearts3040014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
This study aims to assess the whole-body physiological effects of wearing an exoskeleton during a one-hour standardized work task, utilizing the Cardiac Index (CI) as the target parameter. N = 42 young and healthy subjects with welding experience took part in the study. The standardized and abstracted one-hour workflow consists of simulated welding and grinding in constrained body positions and was completed twice by each subject, with and without an exoskeleton, in a randomized order. The CI was measured by Impedance Cardiography (ICG), an approved medical method. The difference between the averaged baseline measurement and the averaged last 10 min was computed for the conditions with and without an exoskeleton for each subject to result in ∆CIwithout exo and ∆CIwith exo. A significant difference between the conditions with and without an exoskeleton was found, with the reduction in CI when wearing an exoskeleton amounting to 10.51%. This result corresponds to that of previous studies that analyzed whole-body physiological load by means of spiroergometry. These results suggest a strong positive influence of exoskeletons on CI and, therefore, physiological load. At the same time, they also support the hypothesis that ICG is a suitable measurement instrument to assess these effects.
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Diamond-Ouellette G, Telonio A, Karakolis T, Leblond J, Bouyer L, PhD KB. Exploring the change in metabolic cost of walking before and after familiarization with a passive load-bearing exoskeleton: A case series. IISE Trans Occup Ergon Hum Factors 2022; 10:161-172. [DOI: 10.1080/24725838.2022.2124325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- G. Diamond-Ouellette
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre intégré universitaire de santé et de service sociaux de la Capitale-Nationale, Quebec City, Canada
| | | | - T. Karakolis
- Operational Health and Performance Section, Defence Research and Development Canada, Toronto, Canada
| | - J. Leblond
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre intégré universitaire de santé et de service sociaux de la Capitale-Nationale, Quebec City, Canada
| | - L.J. Bouyer
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre intégré universitaire de santé et de service sociaux de la Capitale-Nationale, Quebec City, Canada
- Department of Rehabilitation, Université Laval, Quebec City, QC, Canada
| | - K.L. Best PhD
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre intégré universitaire de santé et de service sociaux de la Capitale-Nationale, Quebec City, Canada
- Department of Rehabilitation, Université Laval, Quebec City, QC, Canada
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Estrada-muñoz C, Madrid-casaca H, Salazar-sepúlveda G, Contreras-barraza N, Iturra-gonzález J, Vega-muñoz A. Musculoskeletal Symptoms and Assessment of Ergonomic Risk Factors on a Coffee Farm. Applied Sciences 2022; 12:7703. [DOI: 10.3390/app12157703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In Honduras, some coffee farms must comply with strict standards of social, economic, and environmental sustainability, due to their organic, gender and fair-trade certifications. The principal research aim is to evaluate the musculoskeletal risks in occupations in a Honduran coffee farm certified in sustainable environments and to know the status of its workers within the farm. Musculoskeletal symptom perception during the last twelve months was consulted, assessing exposure to risk factors for work-related musculoskeletal disorders using the Quick Exposure Check method. Data regarding 48 workers were analyzed to provide the results. Within the body regions where discomfort is concentrated, the back, shoulders, wrists, knees, and feet stand out, and the highest risk exposures are presented for the coffee cutters at the neck level and in the wrist/hand segment, in the coffee pickers at the back, shoulder–arm segment, and wrist/hand segment, and in the processors in the back area and shoulder–arm segment. It is concluded that, in all the coffee fruit harvesting processes, the people who work in these jobs are exposed to ergonomic risks.
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Abstract
Musculoskeletal Disorders (MSDs) remain a major concern for workers in the healthcare industry. Healthcare workers are at high risk of work-related MSDs mainly caused by overexertion from manually handling patients. Exoskeletons may be a useful tool to help reduce the risk of MSDs during patient handling. As a review study, we surveyed articles focusing on applying exoskeletons to patient handling tasks specifically. We also reviewed relevant government databases and other studies related to Safe Patient Handling and Mobility (SPHM) programs and exoskeleton applications in general. The exoskeletons specifically designed for patient handling were found to be sparse. To have a better understanding of the needs and challenges of developing and using exoskeletons for reducing risks of work-related MSDs in healthcare workers during patient handling, this critical review (1) provided an overview of the existing issues and projected future burdens related to work-related MSDs during patient handling tasks, (2) recognized current and potential roles and applications of existing exoskeletons, and (3) identified challenges and needs for future exoskeleton products. In conclusion, we do not expect exoskeletons to replace the existing SPHM programs, but rather play a complementary role to these multi-pronged programs. We expect that emerging exoskeleton products can be introduced to uncontrolled or specialized healthcare environments. There are various expectations and requirements for an exoskeleton used in different healthcare settings. Additionally, introducing certain types of exoskeletons for patients to assist them during treatment and rehabilitation may help reduce the MSD risks to the healthcare workers.
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Affiliation(s)
- Liying Zheng
- Health Effects Laboratory Division, National Institute for
Occupational Safety and Health, Morgantown, WV, USA
- Corresponding author.
(L. Zheng)
| | - Ashley L. Hawke
- Health Effects Laboratory Division, National Institute for
Occupational Safety and Health, Morgantown, WV, USA
| | - Kimeran Evans
- Division of Physical Therapy, School of Medicine, West
Virginia University, Morgantown, WV, USA
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Schwerha D, McNamara N, Kim S, Nussbaum MA. Exploratory Field Testing of Passive Exoskeletons in Several Manufacturing Environments: Perceived Usability and User Acceptance. IISE Trans Occup Ergon Hum Factors 2022; 10:71-82. [PMID: 35354354 DOI: 10.1080/24725838.2022.2059594] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OCCUPATIONAL APPLICATIONSResults of the current exploratory study suggest that use of an exoskeleton (EXO) has the potential to be accepted by workers as an intervention in diverse manufacturing environments. Also evident were that the major factors contributing to EXO-use-intention are perceived comfort, task-technology fit, perceived safety, and perceived usefulness. A user's perception of perceived usability may be established by using an exoskeleton during actual job tasks, yet some aspects of perceived usability likely require multiple exposures to an EXO for an accurate assessment. Many negative comments regarding EXO use were related to physical constraints (e.g., restricted movements, bulkiness), and to the EXO interface (e.g., straps, cuff designs), suggesting a need for further research on EXO design to minimize discomfort. In practice, there is likely value in having workers use and explore candidate EXOs during their actual job, both to accurately assess the usefulness of an EXO and to find the most effective EXO.
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Affiliation(s)
- Diana Schwerha
- Department of Industrial & Systems Engineering, Liberty University, Lynchburg, VA, USA
| | - Nathan McNamara
- Department of Industrial & Systems Engineering, Ohio University, Athens, OH, USA
| | - Sunwook Kim
- Department of Industrial & Systems Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Maury A Nussbaum
- Department of Industrial & Systems Engineering, Virginia Tech, Blacksburg, VA, USA
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Kim S, Nussbaum MA, Smets M. Usability, User Acceptance, and Health Outcomes of Arm-Support Exoskeleton Use in Automotive Assembly: An 18-month Field Study. J Occup Environ Med 2022; 64:202-211. [PMID: 34873132 DOI: 10.1097/jom.0000000000002438] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Examine arm-support exoskeleton (ASE) user experience over time, identify factors contributing to ASE intention-to-use, and explore whether ASE use may influence the number of medical visits. METHODS An 18-month, longitudinal study with ASE (n = 65) and control groups (n = 133) completed at nine automotive manufacturing facilities. RESULTS Responses to six usability questions were rather consistent over time. ASE use perceived effective in reducing physical demands on the shoulders, neck, and back. Perceived job performance, and overall fit and comfort, appeared to be key determinants for ASE intention-to-use. Based on medical visits among both groups, ASE use may decrease the likelihood of such visits. CONCLUSIONS These field results support the potential of ASEs as a beneficial ergonomic intervention, but also highlight needs for further research on ASE designs, factors driving intention-to-use, and health outcomes.
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Affiliation(s)
- Sunwook Kim
- Department of Industrial & Systems Engineering, Virginia Tech, Blacksburg, Virginia (Dr Kim, Dr Nussbaum); Manufacturing Technology Development, Ford Motor Company, Glendale, Michigan (Mr Smets)
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McDevitt S, Hernandez H, Hicks J, Lowell R, Bentahaikt H, Burch R, Ball J, Chander H, Freeman C, Taylor C, Anderson B. Wearables for Biomechanical Performance Optimization and Risk Assessment in Industrial and Sports Applications. Bioengineering (Basel) 2022; 9:33. [PMID: 35049742 PMCID: PMC8772827 DOI: 10.3390/bioengineering9010033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 11/23/2022] Open
Abstract
Wearable technologies are emerging as a useful tool with many different applications. While these devices are worn on the human body and can capture numerous data types, this literature review focuses specifically on wearable use for performance enhancement and risk assessment in industrial- and sports-related biomechanical applications. Wearable devices such as exoskeletons, inertial measurement units (IMUs), force sensors, and surface electromyography (EMG) were identified as key technologies that can be used to aid health and safety professionals, ergonomists, and human factors practitioners improve user performance and monitor risk. IMU-based solutions were the most used wearable types in both sectors. Industry largely used biomechanical wearables to assess tasks and risks wholistically, which sports often considered the individual components of movement and performance. Availability, cost, and adoption remain common limitation issues across both sports and industrial applications.
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Affiliation(s)
- Sam McDevitt
- Department of Electrical & Computer Engineering, Mississippi State University, Starkville, MS 39765, USA; (S.M.); (H.H.); (J.B.)
| | - Haley Hernandez
- Department of Electrical & Computer Engineering, Mississippi State University, Starkville, MS 39765, USA; (S.M.); (H.H.); (J.B.)
| | - Jamison Hicks
- Department of Industrial & Systems Engineering, Mississippi State University, Starkville, MS 39765, USA; (J.H.); (R.B.)
| | - Russell Lowell
- Neuromechanics Laboratory, Department of Kinesiology, Mississippi State University, Starkville, MS 39765, USA; (R.L.); (H.C.)
| | - Hamza Bentahaikt
- Department of Mechanical Engineering, Mississippi State University, Starkville, MS 39765, USA;
| | - Reuben Burch
- Department of Industrial & Systems Engineering, Mississippi State University, Starkville, MS 39765, USA; (J.H.); (R.B.)
- Human Factors & Athlete Engineering, Center for Advanced Vehicular Systems, Mississippi State University, Starkville, MS 39765, USA
| | - John Ball
- Department of Electrical & Computer Engineering, Mississippi State University, Starkville, MS 39765, USA; (S.M.); (H.H.); (J.B.)
- Human Factors & Athlete Engineering, Center for Advanced Vehicular Systems, Mississippi State University, Starkville, MS 39765, USA
| | - Harish Chander
- Neuromechanics Laboratory, Department of Kinesiology, Mississippi State University, Starkville, MS 39765, USA; (R.L.); (H.C.)
- Human Factors & Athlete Engineering, Center for Advanced Vehicular Systems, Mississippi State University, Starkville, MS 39765, USA
| | - Charles Freeman
- Department of Human Sciences, Mississippi State University, Starkville, MS 39765, USA
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Hartmann VN, Rinaldi DDM, Taira C, Forner-cordero A. Industrial Upper-Limb Exoskeleton Characterization: Paving the Way to New Standards for Benchmarking. Machines 2021; 9:362. [DOI: 10.3390/machines9120362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Exoskeletons have been introduced in industrial environments to prevent overload or repetitive stress injuries in workers. However, due to the lack of public detailed information about most of the commercial exoskeletons, it is necessary to further assess their load capacity and evolution over time, as their performance may change with use. We present the design and construction of a controlled device to measure the torque of industrial exoskeletons, along with the results of static and dynamic testing of an exoskeleton model. A step motor in the test bench moves the exoskeleton arm in a pre-defined path at a prescribed speed. The force measured with a beam load cell located at the interface between the exoskeleton arm and the test bench is used to derive the torque. The proposed test bench can be easily modified to allow different exoskeleton models to be tested under the same conditions.
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Elstub LJ, Fine SJ, Zelik KE. Exoskeletons and Exosuits Could Benefit from Mode-Switching Body Interfaces That Loosen/Tighten to Improve Thermal Comfort. Int J Environ Res Public Health 2021; 18:13115. [PMID: 34948723 PMCID: PMC8701000 DOI: 10.3390/ijerph182413115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/16/2022]
Abstract
Exoskeletons and exosuits (exos) are wearable devices that physically assist movement. User comfort is critically important for societal adoption of exos. Thermal comfort (a person's satisfaction with their thermal environment) represents a key design challenge. Exos must physically attach/interface to the body to apply forces, and these interfaces inevitably trap some heat. It is envisioned that thermal comfort could be improved by designing mode-switching exo interfaces that temporarily loosen around a body segment when assistive forces are not being applied. To inform exo design, a case series study (N = 4) based on single-subject design principles was performed. Our objective was to assess individual responses to skin temperature and thermal comfort during physical activity with a Loose leg-sleeve interface compared with a Form-Fitting one, and immediately after a Form-Fitting sleeve switched to Loose. Skin under the Loose sleeve was 2-3 °C (4-6 °F) cooler after 25 min of physical activity, and two of four participants reported the Loose sleeve improved their thermal comfort. After completion of the physical activity, the Form-Fitting sleeve was loosened, causing a 2-4 °C (3-8 °F) drop in skin temperature underneath for all participants, and two participants to report slightly improved thermal comfort. These findings confirmed that an exo that can quickly loosen its interface when assistance is not required-and re-tighten when it is- has the potential to enhance thermal comfort for some individuals and environments. More broadly, this study demonstrates that mode-switching mechanisms in exos can do more than adjust physical assistance: they can also exploit thermodynamics and facilitate thermoregulation in a way that enhances comfort for exo users.
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Affiliation(s)
- Laura J. Elstub
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37212, USA; (S.J.F.); (K.E.Z.)
| | - Shimra J. Fine
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37212, USA; (S.J.F.); (K.E.Z.)
| | - Karl E. Zelik
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37212, USA; (S.J.F.); (K.E.Z.)
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37212, USA
- Department of Physical Medicine & Rehabilitation, Vanderbilt University, Nashville, TN 37212, USA
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23
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Harith HH, Mohd MF, Nai Sowat S. A preliminary investigation on upper limb exoskeleton assistance for simulated agricultural tasks. Appl Ergon 2021; 95:103455. [PMID: 33991852 DOI: 10.1016/j.apergo.2021.103455] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
Manual harvesting is still prevalent in the agricultural industry. Accordingly, it is one of the largest contributors toward work-related musculoskeletal disorder. The cutting task in oil palm harvesting uses a long pole and involves repetitive and forceful motion of the upper limbs. Exoskeleton technology is increasingly explored to assist manual tasks performance in manufacturing and heavy industries, mainly for reducing discomfort and injuries, and improving productivity. This paper reports an initial investigation on the feasibility of using an upper limb exoskeleton to assist oil palm harvesting tasks. Previous studies highlighted that exoskeletons for agricultural activities should be adaptable to changing field tasks, tools and equipment. The immediate difference in the activity of three muscles were analyzed for a range of harvesting-simulated tasks. Lower activities were observed for tasks involving overhead work when using the prototype. Nevertheless, users' feedback highlighted that its design should be optimized for better acceptance.
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Affiliation(s)
- Hazreen H Harith
- Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia.
| | - Muhammad Fuad Mohd
- Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
| | - Sharence Nai Sowat
- Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
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Kermavnar T, de Vries AW, de Looze MP, O'Sullivan LW. Effects of industrial back-support exoskeletons on body loading and user experience: an updated systematic review. Ergonomics 2021; 64:685-711. [PMID: 33369518 DOI: 10.1080/00140139.2020.1870162] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
This study is an updated systematic review of papers published in the last 5 years on industrial back-support exoskeletons. The research questions were aimed at addressing the recent findings regarding objective (e.g. body loading, user performance) and subjective evaluations (e.g. user satisfaction), potential side effects, and methodological aspects of usability testing. Thirteen studies of active and twenty of passive exoskeletons were identified. The exoskeletons were tested during lifting and bending tasks, predominantly in laboratory settings and among healthy young men. In general, decreases in participants' back-muscle activity, peak L5/S1 moments and spinal compression forces were reported. User endurance during lifting and static bending improved, but performance declined during tasks that required increased agility. The overall user satisfaction was moderate. Some side effects were observed, including increased abdominal/lower-limb muscle activity and changes in joint angles. A need was identified for further field studies, involving industrial workers, and reflecting actual work situations. Practitioner summary: Due to increased research activity in the field, a systematic review was performed of recent studies on industrial back-support exoskeletons, addressing objective and subjective evaluations, side effects, and methodological aspects of usability testing. The results indicate the efficiency of exoskeletons in back-load reduction and a need for further studies in real work situations. Abbrevaitions: BB: biceps brachii; BF: biceps femoris; CoM: centre of mass; DA: deltoideus anterior; EMG: electromyography; ES: erector spinae; ES-C: erector spinae-cervical; ESI: erector spinae iliocostalis; ESI-L: erector spinae iliocostalis-lumborum; ESL: erector spinae longissimus; ES-L: erector spinae-lumbar; ESL-L: erector spinae longissimus-lumborum; ESL-T: erector spinae longissimus-thoracis; ES-T: erector spinae-thoracic; GM: glutaeus maximus; LBP: low back pain; LD: latissimus dorsi; LPD: local perceived discomfort scale; LPP: local perceived pressure scale; MS: multifidus spinae; MSD: musculoskeletal disorder; M-SFS: modified spinal function sort; NMV: no mean value provided; OA: obliquus abdominis (internus and externus); OEA: obliquus externus abdominis; OIA : obliquus internus abdominis; RA: rectus abdominis; RF: rectus femoris; RoM: range of motion; SUS: system usability scale; T: trapezius (pars Ascendens and Descendens); TA: trapezius pars ascendens; TC: mid-cervical trapezius; TD: trapezius pars descendens; VAS: visual analog scale; VL: vastus lateralis; VM: vastus medialis.
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Affiliation(s)
| | | | | | - Leonard W O'Sullivan
- School of Design, Confirm Smart Manufacturing Centre and Health Research Institute, University of Limerick, Limerick, Ireland
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25
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Zheng L, Lowe B, Hawke AL, Wu JZ. Evaluation and Test Methods of Industrial Exoskeletons In Vitro, In Vivo, and In Silico: A Critical Review. Crit Rev Biomed Eng 2021; 49:1-13. [PMID: 35695600 PMCID: PMC9199587 DOI: 10.1615/critrevbiomedeng.2022041509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Industrial exoskeletons have been used to assist workers during occupational activities, such as overhead work, tool-use, mobility, stooping/squatting, and/or load carrying in various industries. Despite the promise of reducing the risk of work-related musculoskeletal disorders, there is a lack of sufficient evidence to support the safe and effective use of industrial exoskeletons. To assess the merits and residual risks of various types of exoskeletons in different work settings, more comprehensive evaluation procedures are needed. This review study aims to provide an overview of the existing viable and promising methods for evaluating the effectiveness of industrial exoskeletons. The different evaluation methods are organized into three categories-in vitro, in vivo, and in silico studies. The limitations and challenges in different types of evaluation approaches are also discussed. In summary, this review sheds light on choosing appropriate evaluation approaches and may help with decision-making during the development, evaluation, and application of industrial exoskeletons.
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Affiliation(s)
- Liying Zheng
- Health Effects Laboratory Division, National institute for Occupational Safety and Health, Morgantown, WV
| | - Brian Lowe
- Division of Field Studies and Engineering, National institute for Occupational Safety and Health, Cincinnati, OH
| | - Ashley L. Hawke
- Health Effects Laboratory Division, National institute for Occupational Safety and Health, Morgantown, WV
| | - John Z. Wu
- Health Effects Laboratory Division, National institute for Occupational Safety and Health, Morgantown, WV
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26
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Kuber PM, Rashedi E. Product ergonomics in industrial exoskeletons: potential enhancements for workforce efficiency and safety. Theoretical Issues in Ergonomics Science 2020. [DOI: 10.1080/1463922x.2020.1850905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Pranav Madhav Kuber
- Biomechanics and Ergonomics Lab, Industrial and Systems Engineering Department, Rochester Institute of Technology, Rochester, NY, USA
| | - Ehsan Rashedi
- Biomechanics and Ergonomics Lab, Industrial and Systems Engineering Department, Rochester Institute of Technology, Rochester, NY, USA
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Bornmann J, Schirrmeister B, Parth T, Gonzalez-vargas J. Comprehensive development, implementation and evaluation of industrial exoskeletons. Current Directions in Biomedical Engineering 2020; 6. [DOI: 10.1515/cdbme-2020-2001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe article describes the designers’ perspectives for development and implementation of industrial exoskeletons. Findings are based on the research and own development of commercial available exoskeletons. The authors describe and emphasize the importance of a user centered design and implementation process.
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28
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Cha JS, Monfared S, Stefanidis D, Nussbaum MA, Yu D. Supporting Surgical Teams: Identifying Needs and Barriers for Exoskeleton Implementation in the Operating Room. Hum Factors 2020; 62:377-390. [PMID: 31593495 PMCID: PMC10027361 DOI: 10.1177/0018720819879271] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE The objective of this study was to identify potential needs and barriers related to using exoskeletons to decrease musculoskeletal (MS) symptoms for workers in the operating room (OR). BACKGROUND MS symptoms and injuries adversely impact worker health and performance in surgical environments. Half of the surgical team members (e.g., surgeons, nurses, trainees) report MS symptoms during and after surgery. Although the ergonomic risks in surgery are well recognized, little has been done to develop and sustain effective interventions. METHOD Surgical team members (n = 14) participated in focus groups, performed a 10-min simulated surgical task with a commercial upper-body exoskeleton, and then completed a usability questionnaire. Content analysis was conducted to determine relevant themes. RESULTS Four themes were identified: (1) characteristics of individuals, (2) perceived benefits, (3) environmental/societal factors, and (4) intervention characteristics. Participants noted that exoskeletons would benefit workers who stand in prolonged, static postures (e.g., holding instruments for visualization) and indicated that they could foresee a long-term decrease in MS symptoms with the intervention. Specifically, raising awareness of exoskeletons for early-career workers and obtaining buy-in from team members may increase future adoption of this technology. Mean participant responses from the System Usability Scale was 81.3 out of 100 (SD = 8.1), which was in the acceptable range of usability. CONCLUSION Adoption factors were identified to implement exoskeletons in the OR, such as the indicated need for exoskeletons and usability. Exoskeletons may be beneficial in the OR, but barriers such as maintenance and safety to adoption will need to be addressed. APPLICATION Findings from this work identify facilitators and barriers for sustained implementation of exoskeletons by surgical teams.
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Affiliation(s)
- Jackie S Cha
- 311308 Purdue University, West Lafayette, Indiana, USA
| | - Sara Monfared
- 12250 Indiana University School of Medicine, Indianapolis, USA
| | | | | | - Denny Yu
- 311308 Purdue University, West Lafayette, Indiana, USA
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Howard J, Murashov VV, Lowe BD, Lu M. Industrial exoskeletons: Need for intervention effectiveness research. Am J Ind Med 2020; 63:201-208. [PMID: 31828844 DOI: 10.1002/ajim.23080] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/27/2019] [Accepted: 12/17/2019] [Indexed: 11/09/2022]
Abstract
Exoskeleton devices are being introduced across several industry sectors to augment, amplify, or reinforce the performance of a worker's existing body components-primarily the lower back and the upper extremity. Industrial exoskeletons may play a role in reducing work-related musculoskeletal disorders arising from lifting and handling heavy materials or from supporting heavy tools in overhead work. However, wearing an exoskeleton may pose a number of risks that are currently not well-studied. There are only a few studies about the safety and health implications of wearable exoskeletons and most of those studies involve only a small number of participants. Before the widespread implementation of industrial exoskeletons occurs, there is need for prospective interventional studies to evaluate the safety and health effectiveness of exoskeletons across various industry sectors. Developing a research strategy to fill current safety and health knowledge gaps, understanding the benefits, risks, and barriers to adoption of industrial exoskeletons, determining whether exoskeleton can be considered a type of personal protective equipment, and advancing consensus standards that address exoskeleton safety, should be major interests of both the occupational safety and health research and practice communities.
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Affiliation(s)
- John Howard
- Department of Health and Human Services, Centers for Disease Control and PreventionNational Institute for Occupational Safety and Health Washington District of Columbia
| | - Vladimir V. Murashov
- Department of Health and Human Services, Centers for Disease Control and PreventionNational Institute for Occupational Safety and Health Washington District of Columbia
| | - Brian D. Lowe
- Department of Health and Human Services, Centers for Disease Control and PreventionNational Institute for Occupational Safety and Health Washington District of Columbia
| | - Ming‐Lun Lu
- Department of Health and Human Services, Centers for Disease Control and PreventionNational Institute for Occupational Safety and Health Washington District of Columbia
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Affiliation(s)
- Maury A. Nussbaum
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Brian D. Lowe
- National Institute for Occupational Safety and Health, Cincinnati, OH, USA
| | | | - Carisa Harris-Adamson
- Occupational and Environmental Medicine, University of California, San Francisco, CA, USA
| | - Marty Smets
- Advanced Manufacturing, Ford Motor Company, Glendale, MI, USA
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McFarland T, Fischer S. Considerations for Industrial Use: A Systematic Review of the Impact of Active and Passive Upper Limb Exoskeletons on Physical Exposures. IISE Trans Occup Ergon Hum Factors 2019. [DOI: 10.1080/24725838.2019.1684399] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Tasha McFarland
- Department of Kinesiology, University of Waterloo, Waterloo, CA, USA
| | - Steven Fischer
- Department of Kinesiology, University of Waterloo, Waterloo, CA, USA
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Toxiri S, Näf MB, Lazzaroni M, Fernández J, Sposito M, Poliero T, Monica L, Anastasi S, Caldwell DG, Ortiz J. Back-Support Exoskeletons for Occupational Use: An Overview of Technological Advances and Trends. IISE Trans Occup Ergon Hum Factors 2019. [DOI: 10.1080/24725838.2019.1626303] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Stefano Toxiri
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Matthias B. Näf
- Robotics and Multibody Mechanics Research Group, Department of Mechanical Engineering, Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Maria Lazzaroni
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Jorge Fernández
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Matteo Sposito
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Tommaso Poliero
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Luigi Monica
- INAIL—Italian Workers’ Compensation Authority, Rome, Italy
| | - Sara Anastasi
- INAIL—Italian Workers’ Compensation Authority, Rome, Italy
| | - Darwin G. Caldwell
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Jesús Ortiz
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
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