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Discomfort/pain and tissue oxygenation at the lower limb during circumferential compression: application to soft exoskeleton design

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Show simple item record Kermavnar, Tjaša O'Sullivan, Kevin Jeremiah de Eyto, Adam O'Sullivan, Leonard 2020-02-24T09:06:20Z 2020-02-24T09:06:20Z 2020
dc.identifier.issn 0018-7208
dc.description peer-reviewed en_US
dc.description.abstract Objective: To establish the relationship between circumferential compression on the lower limb during simulated ramp and staircase profile loading, and the resultant relationship with discomfort/pain and tissue oxygenation. Background: Excessive mechanical loading by exoskeletons on the body can lead to pressure-related soft tissue injury. Potential tissue damage is associated with objective oxygen deprivation and accompanied by subjective perception of pain and discomfort. Method: Three widths of pneumatic cuffs were inflated at the dominant thigh and calf of healthy participants using two inflation patterns (ramp and staircase), using a computer-controlled pneumatic rig. Participants rated discomfort on an electronic visual analog scale and deep tissue oxygenation was monitored using near infrared spectroscopy. Results: Circumferential compression with pneumatic cuffs triggered discomfort and pain at lower pressures at the thigh, with wider cuffs, and with a ramp inflation pattern. Staircase profile compression caused an increase in deep tissue oxygenation, whereas the ramp profile compression decreased it. Conclusion: Discomfort and pain during circumferential compression at the lower limb is related to the width of pneumatic cuffs, the inflation pattern, and the volume of soft tissue at the assessment site. The occurrence of pain is also possibly related to the decrease in deep tissue oxygenation during compression. Application: Our findings can be used to inform safe and comfortable design of soft exoskeletons to avoid discomfort and possible soft tissue injury. en_US
dc.language.iso eng en_US
dc.publisher SAGE Publications en_US
dc.relation 688175 en_US
dc.relation.ispartofseries Human Factors: The Journal of the Human Factors and Ergonomics Society; 62 (3), pp.475-488
dc.subject assistive technologies en_US
dc.subject exosuit human interaction en_US
dc.subject oxygenation en_US
dc.subject product design en_US
dc.subject tissue loading and comfort en_US
dc.subject wearable devices en_US
dc.title Discomfort/pain and tissue oxygenation at the lower limb during circumferential compression: application to soft exoskeleton design en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2020-02-24T08:58:20Z
dc.identifier.doi 10.1177/0018720819892098
dc.contributor.sponsor ERC en_US
dc.relation.projectid 688175 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2942628
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Human factors: 62 (3), pp.475-488
dc.description.status peer-reviewed

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