{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/19142"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/19142","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Effect of Shoulder Angle on the Activation Pattern of the Elbow Extensors During a Submaximal Isometric Fatiguing Contraction","abstract":"PURPOSE: The aim of the current study was to examine the effect of shoulder angle on the electromyographic (EMG) activation pattern of the elbow extensors during a fatiguing contraction. METHODS: Ten young men (23.5 ± 1.7) were tested on two occasions with the shoulder at either 0° or 90° of flexion. Baseline isometric maximum voluntary contraction torque and the EMG-torque relationship were determined prior to a sustained isometric contraction at 20% of MVC. RESULTS: EMG activity of the long head during the final 10% o f the fatiguing contraction exhibited a significantly greater increase when at 90° versus 0° with no effect of shoulder angle on any other portion of the elbow extensors. CONCLUSION: Measures from one muscle portion of the elbow extensors are not representative of the whole group under isometric fatiguing contractions, and at longer length the activation o f the long head was greater than at the short length.","abstract_html":"PURPOSE: The aim of the current study was to examine the effect of shoulder angle on the electromyographic (EMG) activation pattern of the elbow extensors during a fatiguing contraction. METHODS: Ten young men (23.5 ± 1.7) were tested on two occasions with the shoulder at either 0° or 90° of flexion. Baseline isometric maximum voluntary contraction torque and the EMG-torque relationship were determined prior to a sustained isometric contraction at 20% of MVC. RESULTS: EMG activity of the long head during the final 10% o f the fatiguing contraction exhibited a significantly greater increase when at 90° versus 0° with no effect of shoulder angle on any other portion of the elbow extensors. CONCLUSION: Measures from one muscle portion of the elbow extensors are not representative of the whole group under isometric fatiguing contractions, and at longer length the activation o f the long head was greater than at the short length.","abstract_has_math":false,"creators":["Davidson, Andrew W."],"institution":null,"degree_name":"M Sc","degree_level":null,"degree_discipline":"Kinesiology","degree_department":null,"school":null,"contributors":[],"advisors":["Rice, Charles"],"committee_chairs":[],"committee_members":[],"year":2009,"date_issued":"2009-01-01","date_published":"2009-01-01","updated_at":"2026-07-27T21:56:03Z","subjects":["riceps Brachii","Elbow Extensors","Fatigue","EMG","Anconeus","Shoulder Angle"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/19142","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Rice, Charles"]},{"key":"dc:creator","label":"Author","values":["Davidson, Andrew W."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-06-25T18:58:37Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-06-25T18:58:37Z"]},{"key":"dc:date.issued","label":"Date","values":["2009-01-01"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Kinesiology"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Sc"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["riceps Brachii","Elbow Extensors","Fatigue","EMG","Anconeus","Shoulder Angle"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/19142"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["PURPOSE: The aim of the current study was to examine the effect of shoulder angle on the electromyographic (EMG) activation pattern of the elbow extensors during a fatiguing contraction. METHODS: Ten young men (23.5 ± 1.7) were tested on two occasions with the shoulder at either 0° or 90° of flexion. Baseline isometric maximum voluntary contraction torque and the EMG-torque relationship were determined prior to a sustained isometric contraction at 20% of MVC. RESULTS: EMG activity of the long head during the final 10% o f the fatiguing contraction exhibited a significantly greater increase when at 90° versus 0° with no effect of shoulder angle on any other portion of the elbow extensors. CONCLUSION: Measures from one muscle portion of the elbow extensors are not representative of the whole group under isometric fatiguing contractions, and at longer length the activation o f the long head was greater than at the short length."]},{"key":"dc:title","label":"Title","values":["Effect of Shoulder Angle on the Activation Pattern of the Elbow Extensors During a Submaximal Isometric Fatiguing Contraction"]}]}],"canonical_facts":{"dc:contributor.advisor":["Rice, Charles"],"dc:creator":["Davidson, Andrew W."],"dc:date.accessioned":["2025-06-25T18:58:37Z"],"dc:date.available":["2025-06-25T18:58:37Z"],"dc:date.issued":["2009-01-01"],"dc:description.abstract":["PURPOSE: The aim of the current study was to examine the effect of shoulder angle on the electromyographic (EMG) activation pattern of the elbow extensors during a fatiguing contraction. METHODS: Ten young men (23.5 ± 1.7) were tested on two occasions with the shoulder at either 0° or 90° of flexion. Baseline isometric maximum voluntary contraction torque and the EMG-torque relationship were determined prior to a sustained isometric contraction at 20% of MVC. RESULTS: EMG activity of the long head during the final 10% o f the fatiguing contraction exhibited a significantly greater increase when at 90° versus 0° with no effect of shoulder angle on any other portion of the elbow extensors. CONCLUSION: Measures from one muscle portion of the elbow extensors are not representative of the whole group under isometric fatiguing contractions, and at longer length the activation o f the long head was greater than at the short length."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/19142"],"dc:subject":["riceps Brachii","Elbow Extensors","Fatigue","EMG","Anconeus","Shoulder Angle"],"dc:title":["Effect of Shoulder Angle on the Activation Pattern of the Elbow Extensors During a Submaximal Isometric Fatiguing Contraction"],"dc:type":["thesis"],"thesis:degree_discipline":["Kinesiology"],"thesis:degree_name":["M Sc"]},"updated_at":"2026-07-27T21:56:03Z"}