A portable powered ankle-foot orthosis for rehabilitation
Innovative technological advancements in the field of orthotics, such as portable powered orthotic systems, could create new treatment modalities to improve the functional out come of rehabilitation. In this article, we present a novel portable powered ankle-foot orthosis (PPAFO) to provide untether...
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| Veröffentlicht in: | Journal of rehabilitation research and development 2011-01, Vol.48 (4), p.459-472 |
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| container_title | Journal of rehabilitation research and development |
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| creator | Shorter, K Alex Kogler, Géza F Loth, Eric Durfee, William K Hsiao-Wecksler, Elizabeth T |
| description | Innovative technological advancements in the field of orthotics, such as portable powered orthotic systems, could create new treatment modalities to improve the functional out come of rehabilitation. In this article, we present a novel portable powered ankle-foot orthosis (PPAFO) to provide untethered assistance during gait. The PPAFO provides both plantar flexor and dorsiflexor torque assistance by way of a bidirectional pneumatic rotary actuator. The system uses a portable pneumatic power source (compressed carbon dioxide bottle) and embedded electronics to control the actuation of the foot. We collected pilot experimental data from one impaired and three nondisabled subjects to demonstrate design functionality. The impaired subject had bilateral impairment of the lower legs due to cauda equina syndrome. We found that data from nondisabled walkers demonstrated the PPAFO's capability to provide correctly timed plantar flexor and dorsiflexor assistance during gait. Reduced activation of the tibialis anterior during stance and swing was also seen during assisted nondisabled walking trials. An increase in the vertical ground reaction force during the second half of stance was present during assisted trials for the impaired subject. Data from nondisabled walkers demonstrated functionality, and data from an impaired walker demonstrated the ability to provide functional plantar flexor assistance. |
| doi_str_mv | 10.1682/jrrd.2010.04.0054 |
| format | Article |
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In this article, we present a novel portable powered ankle-foot orthosis (PPAFO) to provide untethered assistance during gait. The PPAFO provides both plantar flexor and dorsiflexor torque assistance by way of a bidirectional pneumatic rotary actuator. The system uses a portable pneumatic power source (compressed carbon dioxide bottle) and embedded electronics to control the actuation of the foot. We collected pilot experimental data from one impaired and three nondisabled subjects to demonstrate design functionality. The impaired subject had bilateral impairment of the lower legs due to cauda equina syndrome. We found that data from nondisabled walkers demonstrated the PPAFO's capability to provide correctly timed plantar flexor and dorsiflexor assistance during gait. Reduced activation of the tibialis anterior during stance and swing was also seen during assisted nondisabled walking trials. An increase in the vertical ground reaction force during the second half of stance was present during assisted trials for the impaired subject. Data from nondisabled walkers demonstrated functionality, and data from an impaired walker demonstrated the ability to provide functional plantar flexor assistance.</description><identifier>ISSN: 0748-7711</identifier><identifier>EISSN: 1938-1352</identifier><identifier>DOI: 10.1682/jrrd.2010.04.0054</identifier><identifier>PMID: 21674394</identifier><identifier>CODEN: JRRDDB</identifier><language>eng</language><publisher>United States: Department of Veterans Affairs</publisher><subject>Adult ; Ankle ; Data collection ; Design ; Exercise Test - instrumentation ; Foot ; Gait - physiology ; Health aspects ; Humans ; Injuries ; Intervertebral Disc Displacement - complications ; Male ; Orthopedic equipment and supplies ; Orthotic Devices ; Physical therapy ; Polyradiculopathy - etiology ; Polyradiculopathy - rehabilitation ; Rehabilitation ; Studies ; Walking ; Young Adult</subject><ispartof>Journal of rehabilitation research and development, 2011-01, Vol.48 (4), p.459-472</ispartof><rights>COPYRIGHT 2011 Department of Veterans Affairs</rights><rights>Copyright Superintendent of Documents 2011</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c503t-4374b85ffa529cc717b2ae76671bc77cf0f1b5a46d5858bef1fea569fa76d9d03</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21674394$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Shorter, K Alex</creatorcontrib><creatorcontrib>Kogler, Géza F</creatorcontrib><creatorcontrib>Loth, Eric</creatorcontrib><creatorcontrib>Durfee, William K</creatorcontrib><creatorcontrib>Hsiao-Wecksler, Elizabeth T</creatorcontrib><title>A portable powered ankle-foot orthosis for rehabilitation</title><title>Journal of rehabilitation research and development</title><addtitle>J Rehabil Res Dev</addtitle><description>Innovative technological advancements in the field of orthotics, such as portable powered orthotic systems, could create new treatment modalities to improve the functional out come of rehabilitation. 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instrumentation</topic><topic>Foot</topic><topic>Gait - physiology</topic><topic>Health aspects</topic><topic>Humans</topic><topic>Injuries</topic><topic>Intervertebral Disc Displacement - complications</topic><topic>Male</topic><topic>Orthopedic equipment and supplies</topic><topic>Orthotic Devices</topic><topic>Physical therapy</topic><topic>Polyradiculopathy - etiology</topic><topic>Polyradiculopathy - rehabilitation</topic><topic>Rehabilitation</topic><topic>Studies</topic><topic>Walking</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shorter, K Alex</creatorcontrib><creatorcontrib>Kogler, Géza F</creatorcontrib><creatorcontrib>Loth, Eric</creatorcontrib><creatorcontrib>Durfee, William K</creatorcontrib><creatorcontrib>Hsiao-Wecksler, Elizabeth T</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Neurosciences Abstracts</collection><collection>Physical Education Index</collection><collection>PHMC-Proquest健康医学期刊库</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Healthcare Administration Database (Alumni)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>eLibrary</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>ProQuest Healthcare Administration Database</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>ProQuest Science Journals</collection><collection>Research Library (Corporate)</collection><collection>Nursing & Allied Health Premium</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of rehabilitation research and development</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shorter, K Alex</au><au>Kogler, Géza F</au><au>Loth, Eric</au><au>Durfee, William K</au><au>Hsiao-Wecksler, Elizabeth T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A portable powered ankle-foot orthosis for rehabilitation</atitle><jtitle>Journal of rehabilitation research and development</jtitle><addtitle>J Rehabil Res Dev</addtitle><date>2011-01-01</date><risdate>2011</risdate><volume>48</volume><issue>4</issue><spage>459</spage><epage>472</epage><pages>459-472</pages><issn>0748-7711</issn><eissn>1938-1352</eissn><coden>JRRDDB</coden><abstract>Innovative technological advancements in the field of orthotics, such as portable powered orthotic systems, could create new treatment modalities to improve the functional out come of rehabilitation. In this article, we present a novel portable powered ankle-foot orthosis (PPAFO) to provide untethered assistance during gait. The PPAFO provides both plantar flexor and dorsiflexor torque assistance by way of a bidirectional pneumatic rotary actuator. The system uses a portable pneumatic power source (compressed carbon dioxide bottle) and embedded electronics to control the actuation of the foot. We collected pilot experimental data from one impaired and three nondisabled subjects to demonstrate design functionality. The impaired subject had bilateral impairment of the lower legs due to cauda equina syndrome. We found that data from nondisabled walkers demonstrated the PPAFO's capability to provide correctly timed plantar flexor and dorsiflexor assistance during gait. Reduced activation of the tibialis anterior during stance and swing was also seen during assisted nondisabled walking trials. An increase in the vertical ground reaction force during the second half of stance was present during assisted trials for the impaired subject. Data from nondisabled walkers demonstrated functionality, and data from an impaired walker demonstrated the ability to provide functional plantar flexor assistance.</abstract><cop>United States</cop><pub>Department of Veterans Affairs</pub><pmid>21674394</pmid><doi>10.1682/jrrd.2010.04.0054</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0748-7711 |
| ispartof | Journal of rehabilitation research and development, 2011-01, Vol.48 (4), p.459-472 |
| issn | 0748-7711 1938-1352 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_872126777 |
| source | US Government Documents; MEDLINE; EZB Electronic Journals Library |
| subjects | Adult Ankle Data collection Design Exercise Test - instrumentation Foot Gait - physiology Health aspects Humans Injuries Intervertebral Disc Displacement - complications Male Orthopedic equipment and supplies Orthotic Devices Physical therapy Polyradiculopathy - etiology Polyradiculopathy - rehabilitation Rehabilitation Studies Walking Young Adult |
| title | A portable powered ankle-foot orthosis for rehabilitation |
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