{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/44139"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/44139","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Variability of peak shoulder force during wheelchair propulsion as a function of shoulder pain","abstract":"Manual wheelchair users report a high prevalence of shoulder pain. Growing evidence shows that variability in forces applied to biological tissue is related to musculoskeletal pain. The purpose of this study was to examine the variability of forces acting on the shoulder during wheelchair propulsion as a function of shoulder pain. Twenty-nine manual wheelchair users (13 with pain, 16 without pain) participated in the investigation. Kinetic and kinematic data of wheelchair propulsion were recorded for three minutes maintaining a constant speed at three distinct propulsion speeds (fast speed of 1.1m/s, a self-selected speed, and a slow speed of 0.7m/s). Peak resultant shoulder forces in push phase were calculated using inverse dynamics. There was no difference in mean shoulder resultant force between groups. The pain group had significantly smaller variability of peak resultant force than the no pain group (p < 0.01). This highlights that manipulations of propulsion variability could potentially be a novel prevention strategy for upper limb pain in manual wheelchair users.","abstract_html":"Manual wheelchair users report a high prevalence of shoulder pain. Growing evidence shows that variability in forces applied to biological tissue is related to musculoskeletal pain. The purpose of this study was to examine the variability of forces acting on the shoulder during wheelchair propulsion as a function of shoulder pain. Twenty-nine manual wheelchair users (13 with pain, 16 without pain) participated in the investigation. Kinetic and kinematic data of wheelchair propulsion were recorded for three minutes maintaining a constant speed at three distinct propulsion speeds (fast speed of 1.1m/s, a self-selected speed, and a slow speed of 0.7m/s). Peak resultant shoulder forces in push phase were calculated using inverse dynamics. There was no difference in mean shoulder resultant force between groups. The pain group had significantly smaller variability of peak resultant force than the no pain group (p &lt; 0.01). This highlights that manipulations of propulsion variability could potentially be a novel prevention strategy for upper limb pain in manual wheelchair users.","abstract_has_math":false,"creators":["Moon, Yaejin"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Kinesiology","degree_department":null,"school":null,"contributors":["Sosnoff, Jacob J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-05-24T21:52:26Z","date_published":"2013-05-24T21:52:26Z","updated_at":"2026-07-22T22:25:33Z","subjects":["variability","motor variability","wheelchair","wheelchair propulsion","shoulder pain","shoulder injury"],"languages":["en"],"rights":["Copyright 2013 Yaejin Moon"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/44139","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Sosnoff, Jacob J."]},{"key":"dc:creator","label":"Author","values":["Moon, Yaejin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2013-05-24T21:52:26Z","2013-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Kinesiology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["variability","motor variability","wheelchair","wheelchair propulsion","shoulder pain","shoulder injury"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2013 Yaejin Moon"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/44139"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Manual wheelchair users report a high prevalence of shoulder pain. 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This highlights that manipulations of propulsion variability could potentially be a novel prevention strategy for upper limb pain in manual wheelchair users.","Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-04-18T20:41:31Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Moon_Yaejin.docx: 401034 bytes, checksum: 75cd9af948d90d5fa628f04414065775 (MD5) Moon_Yaejin.pdf: 605094 bytes, checksum: 460f37870f3f2c7c98cd0928b7fe79e7 (MD5)","Made available in DSpace on 2013-05-24T21:52:26Z (GMT). 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Twenty-nine manual wheelchair users (13 with pain, 16 without pain) participated in the investigation. Kinetic and kinematic data of wheelchair propulsion were recorded for three minutes maintaining a constant speed at three distinct propulsion speeds (fast speed of 1.1m/s, a self-selected speed, and a slow speed of 0.7m/s). Peak resultant shoulder forces in push phase were calculated using inverse dynamics. There was no difference in mean shoulder resultant force between groups. The pain group had significantly smaller variability of peak resultant force than the no pain group (p < 0.01). 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