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Influence of hand-rim wheelchairs with rear suspension on seat forces and head acceleration during curb descent landings
Shocks and vibrations experienced while using a hand-rim wheelchair can contribute to discomfort, fatigue and injury. The aim of this study was to compare the seat forces and head accelerations experienced by manual wheelchair users during independent curb descent landings in a standard and 3 suspen...
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| Published in: | Journal of rehabilitation medicine 2009-05, Vol.41 (6), p.459-466 |
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| Main Authors: | , , , , |
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| Language: | English |
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| container_end_page | 466 |
| container_issue | 6 |
| container_start_page | 459 |
| container_title | Journal of rehabilitation medicine |
| container_volume | 41 |
| creator | Requejo, Philip S Maneekobkunwong, Somboon McNitt-Gray, Jill Adkins, Rodney Waters, Robert |
| description | Shocks and vibrations experienced while using a hand-rim wheelchair can contribute to discomfort, fatigue and injury. The aim of this study was to compare the seat forces and head accelerations experienced by manual wheelchair users during independent curb descent landings in a standard and 3 suspension-type rigid-frame wheelchairs.
repeated measures analysis of variance.
Eight men with paraplegia due to spinal cord injury.
Participants performed independently-controlled curb descent maneuvers with 4 wheelchairs. The seat force and head accelerations were compared across wheelchairs.
The suspension-type wheelchairs decreased the seat force and head accelerations by significantly (p < 0.05) extending the force rise time. Also, the seat force and head accelerations were inversely related to the seat force at initial contact. The monoshock-based suspension wheelchairs showed the least seat force and longest force rise time.
Suspension systems result in softer landings by attenuating the magnitude and time duration of the force and reducing head accelerations. Hand-rim wheelchair users can also soften landings by utilizing a "pull-up" strategy that reduces the force and head accelerations. Softer landings can contribute to improved ride quality. |
| doi_str_mv | 10.2340/16501977-0360 |
| format | article |
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repeated measures analysis of variance.
Eight men with paraplegia due to spinal cord injury.
Participants performed independently-controlled curb descent maneuvers with 4 wheelchairs. The seat force and head accelerations were compared across wheelchairs.
The suspension-type wheelchairs decreased the seat force and head accelerations by significantly (p < 0.05) extending the force rise time. Also, the seat force and head accelerations were inversely related to the seat force at initial contact. The monoshock-based suspension wheelchairs showed the least seat force and longest force rise time.
Suspension systems result in softer landings by attenuating the magnitude and time duration of the force and reducing head accelerations. Hand-rim wheelchair users can also soften landings by utilizing a "pull-up" strategy that reduces the force and head accelerations. Softer landings can contribute to improved ride quality.</description><identifier>ISSN: 1650-1977</identifier><identifier>EISSN: 1651-2081</identifier><identifier>DOI: 10.2340/16501977-0360</identifier><identifier>PMID: 19479159</identifier><language>eng</language><publisher>Sweden</publisher><subject>Acceleration ; Adult ; Biomechanical Phenomena ; Equipment Design ; Fatigue ; Humans ; Magnitude ; Male ; Man-Machine Systems ; Paraplegia - physiopathology ; Paraplegia - rehabilitation ; Physical Exertion ; Spinal cord injuries ; Spinal Cord Injuries - physiopathology ; Spinal Cord Injuries - rehabilitation ; Stress, Physiological ; Suspension ; Vibration - adverse effects ; Vibrations ; Wheelchairs ; Wheelchairs - adverse effects</subject><ispartof>Journal of rehabilitation medicine, 2009-05, Vol.41 (6), p.459-466</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c416t-6fcaf86974f1a7292b0c9417a062d91a5e9e01404667dde626ba71067c4f1bd73</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902,30977</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19479159$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Requejo, Philip S</creatorcontrib><creatorcontrib>Maneekobkunwong, Somboon</creatorcontrib><creatorcontrib>McNitt-Gray, Jill</creatorcontrib><creatorcontrib>Adkins, Rodney</creatorcontrib><creatorcontrib>Waters, Robert</creatorcontrib><title>Influence of hand-rim wheelchairs with rear suspension on seat forces and head acceleration during curb descent landings</title><title>Journal of rehabilitation medicine</title><addtitle>J Rehabil Med</addtitle><description>Shocks and vibrations experienced while using a hand-rim wheelchair can contribute to discomfort, fatigue and injury. The aim of this study was to compare the seat forces and head accelerations experienced by manual wheelchair users during independent curb descent landings in a standard and 3 suspension-type rigid-frame wheelchairs.
repeated measures analysis of variance.
Eight men with paraplegia due to spinal cord injury.
Participants performed independently-controlled curb descent maneuvers with 4 wheelchairs. The seat force and head accelerations were compared across wheelchairs.
The suspension-type wheelchairs decreased the seat force and head accelerations by significantly (p < 0.05) extending the force rise time. Also, the seat force and head accelerations were inversely related to the seat force at initial contact. The monoshock-based suspension wheelchairs showed the least seat force and longest force rise time.
Suspension systems result in softer landings by attenuating the magnitude and time duration of the force and reducing head accelerations. Hand-rim wheelchair users can also soften landings by utilizing a "pull-up" strategy that reduces the force and head accelerations. Softer landings can contribute to improved ride quality.</description><subject>Acceleration</subject><subject>Adult</subject><subject>Biomechanical Phenomena</subject><subject>Equipment Design</subject><subject>Fatigue</subject><subject>Humans</subject><subject>Magnitude</subject><subject>Male</subject><subject>Man-Machine Systems</subject><subject>Paraplegia - physiopathology</subject><subject>Paraplegia - rehabilitation</subject><subject>Physical Exertion</subject><subject>Spinal cord injuries</subject><subject>Spinal Cord Injuries - physiopathology</subject><subject>Spinal Cord Injuries - rehabilitation</subject><subject>Stress, Physiological</subject><subject>Suspension</subject><subject>Vibration - adverse effects</subject><subject>Vibrations</subject><subject>Wheelchairs</subject><subject>Wheelchairs - adverse effects</subject><issn>1650-1977</issn><issn>1651-2081</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>7QJ</sourceid><recordid>eNqN0c9LwzAUB_AgipvTo1fJSU_V9_ojWY4y_DEYeNFzSZNXW-nambRM_3tTN_EmQiC_Pu8R8mXsHOE6TlK4QZEBKikjSAQcsGnYYxTDHA-_1xCNlxN24v0bAMoskcdsgiqVCjM1ZR_LtmwGag3xruSVbm3k6jXfVkSNqXTtPN_WfcUdacf94DfU-rpreRiedM_LzhnyPNTxirTl2hhqyOl-RHZwdfvKzeAKbskbanveBBoO_Sk7KnXj6Ww_z9jL_d3z4jFaPT0sF7eryKQo-kiURpdzoWRaopaxigswKkWpQcRWoc5IEWAKqRDSWhKxKLREENKEgsLKZMaudn03rnsfyPf5ug4vacI7qBt8LiXOJWCcBXn5pxQygST5B8xGOA92xqIdNK7z3lGZb8LnaveZI-RjevlPevmYXvAX-8ZDsSb7q_dxJV8MAZUM</recordid><startdate>20090501</startdate><enddate>20090501</enddate><creator>Requejo, Philip S</creator><creator>Maneekobkunwong, Somboon</creator><creator>McNitt-Gray, Jill</creator><creator>Adkins, Rodney</creator><creator>Waters, Robert</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QJ</scope><scope>7X8</scope></search><sort><creationdate>20090501</creationdate><title>Influence of hand-rim wheelchairs with rear suspension on seat forces and head acceleration during curb descent landings</title><author>Requejo, Philip S ; Maneekobkunwong, Somboon ; McNitt-Gray, Jill ; Adkins, Rodney ; Waters, Robert</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c416t-6fcaf86974f1a7292b0c9417a062d91a5e9e01404667dde626ba71067c4f1bd73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Acceleration</topic><topic>Adult</topic><topic>Biomechanical Phenomena</topic><topic>Equipment Design</topic><topic>Fatigue</topic><topic>Humans</topic><topic>Magnitude</topic><topic>Male</topic><topic>Man-Machine Systems</topic><topic>Paraplegia - physiopathology</topic><topic>Paraplegia - rehabilitation</topic><topic>Physical Exertion</topic><topic>Spinal cord injuries</topic><topic>Spinal Cord Injuries - physiopathology</topic><topic>Spinal Cord Injuries - rehabilitation</topic><topic>Stress, Physiological</topic><topic>Suspension</topic><topic>Vibration - adverse effects</topic><topic>Vibrations</topic><topic>Wheelchairs</topic><topic>Wheelchairs - adverse effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Requejo, Philip S</creatorcontrib><creatorcontrib>Maneekobkunwong, Somboon</creatorcontrib><creatorcontrib>McNitt-Gray, Jill</creatorcontrib><creatorcontrib>Adkins, Rodney</creatorcontrib><creatorcontrib>Waters, Robert</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Applied Social Sciences Index & Abstracts (ASSIA)</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of rehabilitation medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Requejo, Philip S</au><au>Maneekobkunwong, Somboon</au><au>McNitt-Gray, Jill</au><au>Adkins, Rodney</au><au>Waters, Robert</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of hand-rim wheelchairs with rear suspension on seat forces and head acceleration during curb descent landings</atitle><jtitle>Journal of rehabilitation medicine</jtitle><addtitle>J Rehabil Med</addtitle><date>2009-05-01</date><risdate>2009</risdate><volume>41</volume><issue>6</issue><spage>459</spage><epage>466</epage><pages>459-466</pages><issn>1650-1977</issn><eissn>1651-2081</eissn><abstract>Shocks and vibrations experienced while using a hand-rim wheelchair can contribute to discomfort, fatigue and injury. The aim of this study was to compare the seat forces and head accelerations experienced by manual wheelchair users during independent curb descent landings in a standard and 3 suspension-type rigid-frame wheelchairs.
repeated measures analysis of variance.
Eight men with paraplegia due to spinal cord injury.
Participants performed independently-controlled curb descent maneuvers with 4 wheelchairs. The seat force and head accelerations were compared across wheelchairs.
The suspension-type wheelchairs decreased the seat force and head accelerations by significantly (p < 0.05) extending the force rise time. Also, the seat force and head accelerations were inversely related to the seat force at initial contact. The monoshock-based suspension wheelchairs showed the least seat force and longest force rise time.
Suspension systems result in softer landings by attenuating the magnitude and time duration of the force and reducing head accelerations. Hand-rim wheelchair users can also soften landings by utilizing a "pull-up" strategy that reduces the force and head accelerations. Softer landings can contribute to improved ride quality.</abstract><cop>Sweden</cop><pmid>19479159</pmid><doi>10.2340/16501977-0360</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1650-1977 |
| ispartof | Journal of rehabilitation medicine, 2009-05, Vol.41 (6), p.459-466 |
| issn | 1650-1977 1651-2081 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_771870125 |
| source | Applied Social Sciences Index & Abstracts (ASSIA); Alma/SFX Local Collection |
| subjects | Acceleration Adult Biomechanical Phenomena Equipment Design Fatigue Humans Magnitude Male Man-Machine Systems Paraplegia - physiopathology Paraplegia - rehabilitation Physical Exertion Spinal cord injuries Spinal Cord Injuries - physiopathology Spinal Cord Injuries - rehabilitation Stress, Physiological Suspension Vibration - adverse effects Vibrations Wheelchairs Wheelchairs - adverse effects |
| title | Influence of hand-rim wheelchairs with rear suspension on seat forces and head acceleration during curb descent landings |
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