Systematic usability evaluation on two harnesses for a wearable chairless exoskeleton

Chae, U-Ri; Kim, Kyujung; Choi, Jong-Kyu; Hyun, Dong Jin; Yun, Jungmin; Lee, Gi Hyun; Hyun, Young Geun; Lee, Jooyeoun; Chung, Myoungsug

doi:10.1016/j.ergon.2021.103162

Cited by 13 publications

(14 citation statements)

References 22 publications

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“…The types of exoskeletons were chosen according to the job performed. Only one study provided results of usability on lower limbs supporting exoskeleton (Hyundai CEX chair exoskeleton) ( 49 ).…”

Section: Resultsmentioning

confidence: 99%

“…Exertion, physical load, and comfort were analyzed with NASA-TLX (task load index) questionnaire ( 81 ), Borg's Rating Perceived Exertion (RPE) scale ( 82 ), Local Perceived Pressure (LPP) scale ( 83 ), and Cornell Musculoskeletal Discomfort Questionnaire (CMDQ) ( 84 ). Qualitative approaches included focus groups and semistructured interviews ( 48 , 49 , 54 , 58 , 62 , 66 , 67 ).…”

Section: Resultsmentioning

confidence: 99%

“…However, the surgical team confirmed that this technology can be relevant to reduce physical load and identified the time needed for donning/doffing the exoskeleton as a key term for usability. In the automotive tasks, the study by Chae et al ( 49 ) underlined the importance of wearability, in the part of fastening and adjusting the harness and finding the right position. Stability and convenience were the most important factors related to overall wearing satisfaction.…”

Section: Resultsmentioning

confidence: 99%

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Industrial exoskeletons from bench to field: Human-machine interface and user experience in occupational settings and tasks

Baldassarre

Lulli²,

Crea³

et al. 2022

Front. Public Health

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ObjectiveWork-related musculoskeletal disorders (WRMSDs) are considered nowadays the most serious issue in the Occupational Health and Safety field and industrial exoskeletons appear to be a new approach to addressing this medical burden. A systematic review has been carried out to analyze the real-life data of the application of exoskeletons in work settings considering the subjective responses of workers.MethodsThe review was registered on PROSPERO. The literature search and its report have been performed following the PRISMA guidelines. A comprehensive literature search was performed in PubMed, EMBASE, Web of Science, and Scopus.ResultsTwenty-four original studies were included in the literature review; 42% of the papers retrieved included automobilist industry workers, 17% of the studies evaluated the use of exoskeletons in logistic facilities, and 17% of articles involved healthcare. The remaining six papers recruited farmers, plasterers, wasting collectors, construction workers, and other workmen. All the papers selected tested the use of passive exoskeletons, supporting upper arms or back. Usability, perceived comfort, perceived exertion and fatigue, acceptability and intention to use, occupational safety and health, and job performance and productivity were the main topic analyzed.ConclusionExoskeletons are not a fix-all technology, neither for workers nor for job tasks; they tend to show more of their potential in static activities, while in dynamic tasks, they can obstacle regular job performance. Comfort and easiness of use are the key factors influencing the user's experience. More research is needed to determine the most effective and safe ways to implement exoskeleton use in occupational settings.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?RecordID=275728, identifier CRD42021275728.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Industrial exoskeletons from bench to field: Human-machine interface and user experience in occupational settings and tasks

Baldassarre

Lulli²,

Crea³

et al. 2022

Front. Public Health

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“…Previous design improvements have looked at holistically overhauling interiors with a focus on medic and patient comfort and ergonomics including equipment and storage access (Kibira et al, 2015). Other researchers have investigated "chair-less" systems (Chae et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

At the Intersection of Safety and Job Performance: A Practitioner’s Case Report on a Mobile Medic Seat Design for Ground Vehicles

Patterson

Godzinski

Hallett

2022

Proceedings of the Human Factors and Ergonomics Society Annual

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Complex user needs are often found at the intersection of safety and job performance. This is particularly so for combat medics who need to remain safe while providing en route casualty care in a ground vehicle during mission operations. The following practitioner’s case report describes how subject matter expert interviews, hierarchical task analyses, and a simulated workspace observation were used to uncover unique requirements to inform a design concept for new medic seating. The solution allows medics to perform life-saving interventions while harnessed in an energy attenuating system. Conclusions highlight on-going challenges designing systems to satisfy conflicting requirements.

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“…Previous studies on EX1 investigated the effect on physical function rather than usability and satisfaction with the wearable robot. Thus, wearable devices need to be evaluated by actual users in terms of wearability [19]. This study was designed to investigate the usability, satisfaction, and physical function from a single session of functional and gait exercise with the EX1 in community-living, middle-and old-aged adults.…”

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confidence: 99%

Functional improvement and satisfaction with a wearable hip exoskeleton in community- living adults

Kim

Chun

Lee

et al. 2022

Preprint

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Background Demand for wearable devices and supportive technology is growing as these devices have the potential to enhance physical function and quality of life in users. The purpose of this study was to investigate usability and satisfaction after performing functional and gait exercise with a wearable hip exoskeleton in community-living adults. Methods Two-hundred and twenty-five adults (mean age 67.52 ± 10.99) residing in the local community participated in this study. All participants (middle-aged group, n = 75; old-aged group, n = 150) performed 40-minutes of exercise once with a wearable hip exoskeleton in various environments. The EX1 (Samsung Electronics Co., Ltd., Suwon, Republic of Korea), which functions as a wearable hip exoskeleton, was used. Physical function was assessed before and after exercise with the EX1 using the 10-meter walking test (10MWT), four square step test (FSST), timed up and go test (TUG), 6-minute walking test (6MWT), and short physical performance battery (SPPB). In addition, after completing exercise with the EX1, the usability and satisfaction questionnaires were evaluated. Results Gait speed, TUG, and FSST showed statistically significant improvements after exercise with the EX1 in both groups (p < 0.05). In 6MWT, a significant increase was observed in the middle-aged group (p < 0.05) but not in the old-aged group. In SPPB, there was a significant improvement in the old-aged group (p < 0.05) but not in the middle-aged group. On the other hand, positive results in usability and satisfaction were noticed in both groups. In preference between resistance and assist mode of the EX1, the old-aged group preferred the assist mode and the middle-aged group preferred the resistance mode. Conclusion These results demonstrate that a single session of exercise with the EX1 was effective in improving physical performance of both middle- and old-aged adults, with positive feedback from most of the participants. Trial registration: Clinical trials registration information: ClinicalTrials.gov Identifier: NCT05106881 (04/11/2021).

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Systematic usability evaluation on two harnesses for a wearable chairless exoskeleton

Cited by 13 publications

References 22 publications

Industrial exoskeletons from bench to field: Human-machine interface and user experience in occupational settings and tasks

Industrial exoskeletons from bench to field: Human-machine interface and user experience in occupational settings and tasks

At the Intersection of Safety and Job Performance: A Practitioner’s Case Report on a Mobile Medic Seat Design for Ground Vehicles

Functional improvement and satisfaction with a wearable hip exoskeleton in community- living adults

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