How Adaptive Ankle Exoskeleton Assistance Affects Stability During Perturbed and Unperturbed Walking in the Elderly
Slowing the decline in walking mobility in the elderly is critical for maintaining the quality of life. Wearable assistive devices may 1 day facilitate mobility in older adults; however, we need to ensure that such devices do not impair stability in this population that is predisposed to fall-relate...
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| Veröffentlicht in: | Annals of biomedical engineering 2023-11, Vol.51 (11), p.2606-2616 |
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| creator | Fang, Ying Lerner, Zachary F. |
| description | Slowing the decline in walking mobility in the elderly is critical for maintaining the quality of life. Wearable assistive devices may 1 day facilitate mobility in older adults; however, we need to ensure that such devices do not impair stability in this population that is predisposed to fall-related injuries. This study sought to quantify the effects of untethered ankle exoskeleton assistance on measures of stability, whole-body dynamics, and strategies to maintain balance during normal and perturbed walking in older adults. Eight healthy participants (69–84 years) completed a treadmill-based walking protocol that included perturbations from unexpected belt accelerations while participants walked with and without ankle exoskeleton assistance. Exoskeleton assistance increased frontal plane range of angular momentum (8–14%,
p
≤ 0.007), step width (18–34%,
p
≤ 0.006), and ankle co-contraction (21–29%,
p
≤ 0.039), and decreased biological ankle moment (16–27%,
p
≤ 0.001) during unperturbed and perturbed walking; it did not affect the anteroposterior margin-of-stability, step length, trunk variability, or soleus activity during unperturbed and perturbed walking. Our finding that ankle exoskeleton assistance did not affect the anteroposterior margin-of-stability supports additional investigation of assistive exoskeletons for walking assistance in the elderly. |
| doi_str_mv | 10.1007/s10439-023-03310-1 |
| format | Article |
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p
≤ 0.007), step width (18–34%,
p
≤ 0.006), and ankle co-contraction (21–29%,
p
≤ 0.039), and decreased biological ankle moment (16–27%,
p
≤ 0.001) during unperturbed and perturbed walking; it did not affect the anteroposterior margin-of-stability, step length, trunk variability, or soleus activity during unperturbed and perturbed walking. Our finding that ankle exoskeleton assistance did not affect the anteroposterior margin-of-stability supports additional investigation of assistive exoskeletons for walking assistance in the elderly.</description><identifier>ISSN: 0090-6964</identifier><identifier>EISSN: 1573-9686</identifier><identifier>DOI: 10.1007/s10439-023-03310-1</identifier><identifier>PMID: 37452214</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Adults ; Angular momentum ; Ankle ; Biochemistry ; Biological and Medical Physics ; Biomedical and Life Sciences ; Biomedical Engineering and Bioengineering ; Biomedicine ; Biophysics ; Classical Mechanics ; Dynamic stability ; Exoskeleton ; Exoskeletons ; Mobility ; Older people ; Original Article ; Perturbation ; Quality of life ; Walking</subject><ispartof>Annals of biomedical engineering, 2023-11, Vol.51 (11), p.2606-2616</ispartof><rights>The Author(s) under exclusive licence to Biomedical Engineering Society 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2023. The Author(s) under exclusive licence to Biomedical Engineering Society.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-bb4658f158a4e357c8abc30216a4afdab4a24c796efba9e4b7c6ad4174b978cd3</citedby><cites>FETCH-LOGICAL-c375t-bb4658f158a4e357c8abc30216a4afdab4a24c796efba9e4b7c6ad4174b978cd3</cites><orcidid>0000-0002-7359-436X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10439-023-03310-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10439-023-03310-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,782,786,27933,27934,41497,42566,51328</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37452214$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Fang, Ying</creatorcontrib><creatorcontrib>Lerner, Zachary F.</creatorcontrib><title>How Adaptive Ankle Exoskeleton Assistance Affects Stability During Perturbed and Unperturbed Walking in the Elderly</title><title>Annals of biomedical engineering</title><addtitle>Ann Biomed Eng</addtitle><addtitle>Ann Biomed Eng</addtitle><description>Slowing the decline in walking mobility in the elderly is critical for maintaining the quality of life. Wearable assistive devices may 1 day facilitate mobility in older adults; however, we need to ensure that such devices do not impair stability in this population that is predisposed to fall-related injuries. This study sought to quantify the effects of untethered ankle exoskeleton assistance on measures of stability, whole-body dynamics, and strategies to maintain balance during normal and perturbed walking in older adults. Eight healthy participants (69–84 years) completed a treadmill-based walking protocol that included perturbations from unexpected belt accelerations while participants walked with and without ankle exoskeleton assistance. Exoskeleton assistance increased frontal plane range of angular momentum (8–14%,
p
≤ 0.007), step width (18–34%,
p
≤ 0.006), and ankle co-contraction (21–29%,
p
≤ 0.039), and decreased biological ankle moment (16–27%,
p
≤ 0.001) during unperturbed and perturbed walking; it did not affect the anteroposterior margin-of-stability, step length, trunk variability, or soleus activity during unperturbed and perturbed walking. Our finding that ankle exoskeleton assistance did not affect the anteroposterior margin-of-stability supports additional investigation of assistive exoskeletons for walking assistance in the elderly.</description><subject>Adults</subject><subject>Angular momentum</subject><subject>Ankle</subject><subject>Biochemistry</subject><subject>Biological and Medical Physics</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedical Engineering and Bioengineering</subject><subject>Biomedicine</subject><subject>Biophysics</subject><subject>Classical Mechanics</subject><subject>Dynamic stability</subject><subject>Exoskeleton</subject><subject>Exoskeletons</subject><subject>Mobility</subject><subject>Older people</subject><subject>Original Article</subject><subject>Perturbation</subject><subject>Quality of 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Wearable assistive devices may 1 day facilitate mobility in older adults; however, we need to ensure that such devices do not impair stability in this population that is predisposed to fall-related injuries. This study sought to quantify the effects of untethered ankle exoskeleton assistance on measures of stability, whole-body dynamics, and strategies to maintain balance during normal and perturbed walking in older adults. Eight healthy participants (69–84 years) completed a treadmill-based walking protocol that included perturbations from unexpected belt accelerations while participants walked with and without ankle exoskeleton assistance. Exoskeleton assistance increased frontal plane range of angular momentum (8–14%,
p
≤ 0.007), step width (18–34%,
p
≤ 0.006), and ankle co-contraction (21–29%,
p
≤ 0.039), and decreased biological ankle moment (16–27%,
p
≤ 0.001) during unperturbed and perturbed walking; it did not affect the anteroposterior margin-of-stability, step length, trunk variability, or soleus activity during unperturbed and perturbed walking. Our finding that ankle exoskeleton assistance did not affect the anteroposterior margin-of-stability supports additional investigation of assistive exoskeletons for walking assistance in the elderly.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><pmid>37452214</pmid><doi>10.1007/s10439-023-03310-1</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-7359-436X</orcidid></addata></record> |
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| subjects | Adults Angular momentum Ankle Biochemistry Biological and Medical Physics Biomedical and Life Sciences Biomedical Engineering and Bioengineering Biomedicine Biophysics Classical Mechanics Dynamic stability Exoskeleton Exoskeletons Mobility Older people Original Article Perturbation Quality of life Walking |
| title | How Adaptive Ankle Exoskeleton Assistance Affects Stability During Perturbed and Unperturbed Walking in the Elderly |
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