{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/29319"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/29319","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Nitrate supplementation does not alter the V̇O2p SC-muscle fatigue relationship in recreationally active men","abstract":"The current study assessed alterations to the linear V̇O2p slow component (V̇O2p SC)-muscle fatigue development relationship using dietary nitrate (NO3- ) supplementation during very heavy (VH)-intensity constant-work rate cycling exercise. Using a double- blind, block-randomised, crossover design, 8 healthy men (age, 24±2 yr [mean±SD]; V̇O2p-max, 43.8±6.0 mL/kg/min) consumed NO3- -rich (BRJ) or -depleted (PLAC) beetroot juice daily for 20 d. Participants completed pre/post-condition incremental leg cycling V̇O2p-max and 3-min “sprint” verification exercises. An initial 5 d loading phase was followed, on alternate days, by single trials of VH- or moderate-intensity exercise at select time points with a 14 d washout period separating conditions. Muscle fatigue was assessed pre/post- exercise by electrically stimulated quadriceps muscle torque production. NO3- supplementation had no effect on the development of the V̇O2p SC amplitude or muscle fatigue or the linear relationship between the two variables (slope = 6.85 (BRJ) vs. 8.34 (PLAC) (mL/min)/(10/50 Hz ratio; P = 0.628).","abstract_html":"The current study assessed alterations to the linear V̇O2p slow component (V̇O2p SC)-muscle fatigue development relationship using dietary nitrate (NO3- ) supplementation during very heavy (VH)-intensity constant-work rate cycling exercise. Using a double- blind, block-randomised, crossover design, 8 healthy men (age, 24±2 yr [mean±SD]; V̇O2p-max, 43.8±6.0 mL/kg/min) consumed NO3- -rich (BRJ) or -depleted (PLAC) beetroot juice daily for 20 d. Participants completed pre/post-condition incremental leg cycling V̇O2p-max and 3-min “sprint” verification exercises. An initial 5 d loading phase was followed, on alternate days, by single trials of VH- or moderate-intensity exercise at select time points with a 14 d washout period separating conditions. Muscle fatigue was assessed pre/post- exercise by electrically stimulated quadriceps muscle torque production. NO3- supplementation had no effect on the development of the V̇O2p SC amplitude or muscle fatigue or the linear relationship between the two variables (slope = 6.85 (BRJ) vs. 8.34 (PLAC) (mL/min)/(10/50 Hz ratio; P = 0.628).","abstract_has_math":false,"creators":["Vanhie, James Joseph George"],"institution":"The University of Western Ontario","degree_name":"M Sc","degree_level":null,"degree_discipline":"Kinesiology","degree_department":null,"school":null,"contributors":[],"advisors":["Kowalchuk, John M."],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-08-20","date_published":"2019-08-20","updated_at":"2026-07-27T21:56:20Z","subjects":["Nitrate","nitrite","beetroot juice","VO2p slow component","muscle fatigue","exercise"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/29319","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Kowalchuk, John M."]},{"key":"dc:creator","label":"Author","values":["Vanhie, James Joseph George"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T16:20:03Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T16:20:03Z"]},{"key":"dc:date.issued","label":"Date","values":["2019-08-20"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"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":["Nitrate","nitrite","beetroot juice","VO2p slow component","muscle fatigue","exercise"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_ca"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/29319"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."]},{"key":"dc:description.abstract","label":"Abstract","values":["The current study assessed alterations to the linear V̇O2p slow component (V̇O2p SC)-muscle fatigue development relationship using dietary nitrate (NO3- ) supplementation during very heavy (VH)-intensity constant-work rate cycling exercise. Using a double- blind, block-randomised, crossover design, 8 healthy men (age, 24±2 yr [mean±SD]; V̇O2p-max, 43.8±6.0 mL/kg/min) consumed NO3- -rich (BRJ) or -depleted (PLAC) beetroot juice daily for 20 d. Participants completed pre/post-condition incremental leg cycling V̇O2p-max and 3-min “sprint” verification exercises. An initial 5 d loading phase was followed, on alternate days, by single trials of VH- or moderate-intensity exercise at select time points with a 14 d washout period separating conditions. Muscle fatigue was assessed pre/post- exercise by electrically stimulated quadriceps muscle torque production. NO3- supplementation had no effect on the development of the V̇O2p SC amplitude or muscle fatigue or the linear relationship between the two variables (slope = 6.85 (BRJ) vs. 8.34 (PLAC) (mL/min)/(10/50 Hz ratio; P = 0.628)."]},{"key":"dc:title","label":"Title","values":["Nitrate supplementation does not alter the V̇O2p SC-muscle fatigue relationship in recreationally active men"]}]}],"canonical_facts":{"dc:contributor.advisor":["Kowalchuk, John M."],"dc:creator":["Vanhie, James Joseph George"],"dc:date.accessioned":["2025-07-10T16:20:03Z"],"dc:date.available":["2025-07-10T16:20:03Z"],"dc:date.issued":["2019-08-20"],"dc:description":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."],"dc:description.abstract":["The current study assessed alterations to the linear V̇O2p slow component (V̇O2p SC)-muscle fatigue development relationship using dietary nitrate (NO3- ) supplementation during very heavy (VH)-intensity constant-work rate cycling exercise. Using a double- blind, block-randomised, crossover design, 8 healthy men (age, 24±2 yr [mean±SD]; V̇O2p-max, 43.8±6.0 mL/kg/min) consumed NO3- -rich (BRJ) or -depleted (PLAC) beetroot juice daily for 20 d. Participants completed pre/post-condition incremental leg cycling V̇O2p-max and 3-min “sprint” verification exercises. An initial 5 d loading phase was followed, on alternate days, by single trials of VH- or moderate-intensity exercise at select time points with a 14 d washout period separating conditions. Muscle fatigue was assessed pre/post- exercise by electrically stimulated quadriceps muscle torque production. NO3- supplementation had no effect on the development of the V̇O2p SC amplitude or muscle fatigue or the linear relationship between the two variables (slope = 6.85 (BRJ) vs. 8.34 (PLAC) (mL/min)/(10/50 Hz ratio; P = 0.628)."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/29319"],"dc:language.iso":["en_ca"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["Nitrate","nitrite","beetroot juice","VO2p slow component","muscle fatigue","exercise"],"dc:title":["Nitrate supplementation does not alter the V̇O2p SC-muscle fatigue relationship in recreationally active men"],"dc:type":["thesis"],"thesis:degree_discipline":["Kinesiology"],"thesis:degree_name":["M Sc"]},"updated_at":"2026-07-27T21:56:20Z"}