{"id":{"repo_id":"abertay","oai_identifier":"oai:rke.abertay.ac.uk:studenttheses/2511e736-ab61-402b-8bef-cf3380677a1b"},"canonical_url":"https://search.dev.ndltd.org/etd/abertay/oai:rke.abertay.ac.uk:studenttheses/2511e736-ab61-402b-8bef-cf3380677a1b","repository":{"repo_id":"abertay","name":"Abertay University","base_url":"https://rke.abertay.ac.uk/ws/oai"},"display":{"title":"The effects of vitamin D<sub>3</sub> supplementation on the aerobic and anaerobic exercise performance of recreational combat sport athletes","abstract":"Vitamin D is a secosteroid prohormone classically associated with calcium metabolism and bone health. However, emerging research suggests that vitamin D may also influence exercise performance. Most research on vitamin D and exercise performance focuses on markers of muscle strength, despite correlations existing between vitamin D status and VO<sub>2max</sub>. In study 1, the response to vitamin D<sub>3</sub> supplementation at various doses on markers of aerobic and anaerobic exercise performance in recreational combat sport athletes was evaluated. Vitamin D<sub>3</sub> supplementation increased lower body VO<sub>2peak</sub> by between 10-12% and upper body VO<sub>2peak</sub> by between 12-18% with improvements in peak power by 3-7% and 10-26% in the lower and upper body respectively with no additional benefit to consuming more than 50000IU.week<sup>-1</sup>. In the following study it was seen that vitamin D3 supplementation of 50000IU.week<sup>-1</sup> in conjunction with concurrent lower and upper body sprint interval training (SIT) increased lower body VO2 peak by 8% in the vitamin D supplemented group with no change (-0.7%) in the placebo group. This was coupled with increases in lower body Wingate peak power by 22-25% and by 14-16% in vitamin D and placebo groups respectively. The final study investigated two weeks of vitamin D<sub>3</sub> supplementation combined with SIT consisting of hill sprints and battle rope exercise. Vitamin D<sub>3</sub> supplementation improved repeated sprint ability in the lower and upper body compared to placebo. All studies demonstrated that vitamin D3 supplementation can positively effect haematocrit and haemoglobin concentrations, implying a role of vitamin D in red blood cell health. Taken together, this implies that recreational combat athletes should supplement with vitamin D<sub>3</sub> due to the high likelihood of this population group having suboptimal vitamin D status to induce aerobic and anaerobic exercise performance increases.","abstract_html":"Vitamin D is a secosteroid prohormone classically associated with calcium metabolism and bone health. However, emerging research suggests that vitamin D may also influence exercise performance. Most research on vitamin D and exercise performance focuses on markers of muscle strength, despite correlations existing between vitamin D status and VO&lt;sub&gt;2max&lt;/sub&gt;. In study 1, the response to vitamin D&lt;sub&gt;3&lt;/sub&gt; supplementation at various doses on markers of aerobic and anaerobic exercise performance in recreational combat sport athletes was evaluated. Vitamin D&lt;sub&gt;3&lt;/sub&gt; supplementation increased lower body VO&lt;sub&gt;2peak&lt;/sub&gt; by between 10-12% and upper body VO&lt;sub&gt;2peak&lt;/sub&gt; by between 12-18% with improvements in peak power by 3-7% and 10-26% in the lower and upper body respectively with no additional benefit to consuming more than 50000IU.week&lt;sup&gt;-1&lt;/sup&gt;. In the following study it was seen that vitamin D3 supplementation of 50000IU.week&lt;sup&gt;-1&lt;/sup&gt; in conjunction with concurrent lower and upper body sprint interval training (SIT) increased lower body VO2 peak by 8% in the vitamin D supplemented group with no change (-0.7%) in the placebo group. This was coupled with increases in lower body Wingate peak power by 22-25% and by 14-16% in vitamin D and placebo groups respectively. The final study investigated two weeks of vitamin D&lt;sub&gt;3&lt;/sub&gt; supplementation combined with SIT consisting of hill sprints and battle rope exercise. Vitamin D&lt;sub&gt;3&lt;/sub&gt; supplementation improved repeated sprint ability in the lower and upper body compared to placebo. All studies demonstrated that vitamin D3 supplementation can positively effect haematocrit and haemoglobin concentrations, implying a role of vitamin D in red blood cell health. Taken together, this implies that recreational combat athletes should supplement with vitamin D&lt;sub&gt;3&lt;/sub&gt; due to the high likelihood of this population group having suboptimal vitamin D status to induce aerobic and anaerobic exercise performance increases.","abstract_has_math":false,"creators":["Marley, Andrew"],"institution":"Abertay University","degree_name":"PhD","degree_level":"Doctoral Thesis","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Babraj, John","Grant, Marie Clare"],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-6","date_published":"2022-6","updated_at":"2026-07-24T00:50:29Z","subjects":["Cholecalciferol","MMA","Boxing","Judo","High intensity interval training","Sprint interval training"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oai:rke.abertay.ac.uk:studenttheses/2511e736-ab61-402b-8bef-cf3380677a1b"],"render_values":[{"text":"oai:rke.abertay.ac.uk:studenttheses/2511e736-ab61-402b-8bef-cf3380677a1b","href":null,"code":true}]}]},"links":{"outbound_url":"https://rke.abertay.ac.uk/en/studentTheses/2511e736-ab61-402b-8bef-cf3380677a1b","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Babraj, John","Grant, Marie Clare"]},{"key":"dc:creator","label":"Author","values":["Marley, Andrew"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-6"]},{"key":"dc:date.issued","label":"Date","values":["2022-6"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Division of Sport and Exercise Sciences"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["Abertay University"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://rke.abertay.ac.uk/en/studentTheses/2511e736-ab61-402b-8bef-cf3380677a1b"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Doctoral Thesis"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["PhD"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Cholecalciferol","MMA","Boxing","Judo","High intensity interval training","Sprint interval training"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights.embargodate","label":"Dc Rights Embargodate","values":["2023-07-31"]},{"key":"dc:rights.embargoreason","label":"Dc Rights Embargoreason","values":["/dk/atira/pure/core/document/studentthesisembargoreason/publicationissues"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["oai:rke.abertay.ac.uk:studenttheses/2511e736-ab61-402b-8bef-cf3380677a1b","https://rke.abertay.ac.uk/en/studentTheses/2511e736-ab61-402b-8bef-cf3380677a1b"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://rke.abertay.ac.uk/files/41370271/Marley_TheEffectsOfVitaminD3Supplementation_PhD_Thesis_2022.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Vitamin D is a secosteroid prohormone classically associated with calcium metabolism and bone health. However, emerging research suggests that vitamin D may also influence exercise performance. Most research on vitamin D and exercise performance focuses on markers of muscle strength, despite correlations existing between vitamin D status and VO<sub>2max</sub>. In study 1, the response to vitamin D<sub>3</sub> supplementation at various doses on markers of aerobic and anaerobic exercise performance in recreational combat sport athletes was evaluated. Vitamin D<sub>3</sub> supplementation increased lower body VO<sub>2peak</sub> by between 10-12% and upper body VO<sub>2peak</sub> by between 12-18% with improvements in peak power by 3-7% and 10-26% in the lower and upper body respectively with no additional benefit to consuming more than 50000IU.week<sup>-1</sup>. In the following study it was seen that vitamin D3 supplementation of 50000IU.week<sup>-1</sup> in conjunction with concurrent lower and upper body sprint interval training (SIT) increased lower body VO2 peak by 8% in the vitamin D supplemented group with no change (-0.7%) in the placebo group. This was coupled with increases in lower body Wingate peak power by 22-25% and by 14-16% in vitamin D and placebo groups respectively. The final study investigated two weeks of vitamin D<sub>3</sub> supplementation combined with SIT consisting of hill sprints and battle rope exercise. Vitamin D<sub>3</sub> supplementation improved repeated sprint ability in the lower and upper body compared to placebo. All studies demonstrated that vitamin D3 supplementation can positively effect haematocrit and haemoglobin concentrations, implying a role of vitamin D in red blood cell health. Taken together, this implies that recreational combat athletes should supplement with vitamin D<sub>3</sub> due to the high likelihood of this population group having suboptimal vitamin D status to induce aerobic and anaerobic exercise performance increases."]},{"key":"dc:title","label":"Title","values":["The effects of vitamin D<sub>3</sub> supplementation on the aerobic and anaerobic exercise performance of recreational combat sport athletes"]}]}],"canonical_facts":{"dc:contributor.advisor":["Babraj, John","Grant, Marie Clare"],"dc:creator":["Marley, Andrew"],"dc:date":["2022-6"],"dc:date.issued":["2022-6"],"dc:description.abstract":["Vitamin D is a secosteroid prohormone classically associated with calcium metabolism and bone health. However, emerging research suggests that vitamin D may also influence exercise performance. Most research on vitamin D and exercise performance focuses on markers of muscle strength, despite correlations existing between vitamin D status and VO<sub>2max</sub>. In study 1, the response to vitamin D<sub>3</sub> supplementation at various doses on markers of aerobic and anaerobic exercise performance in recreational combat sport athletes was evaluated. Vitamin D<sub>3</sub> supplementation increased lower body VO<sub>2peak</sub> by between 10-12% and upper body VO<sub>2peak</sub> by between 12-18% with improvements in peak power by 3-7% and 10-26% in the lower and upper body respectively with no additional benefit to consuming more than 50000IU.week<sup>-1</sup>. In the following study it was seen that vitamin D3 supplementation of 50000IU.week<sup>-1</sup> in conjunction with concurrent lower and upper body sprint interval training (SIT) increased lower body VO2 peak by 8% in the vitamin D supplemented group with no change (-0.7%) in the placebo group. This was coupled with increases in lower body Wingate peak power by 22-25% and by 14-16% in vitamin D and placebo groups respectively. The final study investigated two weeks of vitamin D<sub>3</sub> supplementation combined with SIT consisting of hill sprints and battle rope exercise. Vitamin D<sub>3</sub> supplementation improved repeated sprint ability in the lower and upper body compared to placebo. All studies demonstrated that vitamin D3 supplementation can positively effect haematocrit and haemoglobin concentrations, implying a role of vitamin D in red blood cell health. Taken together, this implies that recreational combat athletes should supplement with vitamin D<sub>3</sub> due to the high likelihood of this population group having suboptimal vitamin D status to induce aerobic and anaerobic exercise performance increases."],"dc:identifier":["oai:rke.abertay.ac.uk:studenttheses/2511e736-ab61-402b-8bef-cf3380677a1b","https://rke.abertay.ac.uk/en/studentTheses/2511e736-ab61-402b-8bef-cf3380677a1b"],"dc:identifier.uri":["https://rke.abertay.ac.uk/files/41370271/Marley_TheEffectsOfVitaminD3Supplementation_PhD_Thesis_2022.pdf"],"dc:language":["eng"],"dc:publisher.department":["Division of Sport and Exercise Sciences"],"dc:publisher.institution":["Abertay University"],"dc:relation.isreferencedby":["https://rke.abertay.ac.uk/en/studentTheses/2511e736-ab61-402b-8bef-cf3380677a1b"],"dc:rights.embargodate":["2023-07-31"],"dc:rights.embargoreason":["/dk/atira/pure/core/document/studentthesisembargoreason/publicationissues"],"dc:subject":["Cholecalciferol","MMA","Boxing","Judo","High intensity interval training","Sprint interval training"],"dc:title":["The effects of vitamin D<sub>3</sub> supplementation on the aerobic and anaerobic exercise performance of recreational combat sport athletes"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["Doctoral Thesis"],"dc:type.qualificationname":["PhD"]},"updated_at":"2026-07-24T00:50:29Z"}