Dark Chocolate Supplementation Elevates Resting Energy Expenditure in Exercise Trained Females

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dc.contributor.author Presler, Katie M.
dc.date.accessioned 2019-03-06T14:29:54Z
dc.date.available 2019-03-06T14:29:54Z
dc.date.issued 2018-11
dc.identifier.citation Presler, Katie M. "Dark Chocolate Supplementation Elevates Resting Energy Expenditure in Exercise Trained Females," Master's thesis, Valdosta State University, 2018. https://hdl.handle.net/10428/3320.
dc.identifier.other FBE88A5E-0903-5F83-44C9-DF31A6A60C07 UUID
dc.identifier.uri https://hdl.handle.net/10428/3320
dc.description.abstract PURPOSE: To investigate the influence of dark chocolate (DC) supplementation on resting and steady state exercise metabolism in a group of recreationally fit/athletic females. METHODS: Using a randomized, double-blind design, 18 exercise trained female subjects were assigned to a 30-d supplementation with either 20g•d-1 of 70% DC (n = 9) or a calorically matched white chocolate (WC) (n = 9). Prior to supplementation (PRE), subjects underwent indirect calorimetry assessment for resting energy expenditure (REE) followed by an assessment of exercise energy expenditure (EEE) consisting of steady state cycling for 20 min, 10 min at 50 watts (EEE-50) and 10 min at 100 watts (EEE-100). Upon completion of the 30-d supplementation (POST), subjects repeated the assessment for REE-0, EEE-50, and EEE-100. All data are presented as mean (SE). RESULTS: Pre-supplementation REE (DC 1455 ± 49, WC 1566 ± 49 kcal•d-1, p ≥ .05), EEE-50 (DC 4.85 ± 0.15, WC 4.60 ± 0.15 kcal • min-1), and EEE-100 (DC 7.06 ± 0.16, WC 6.76 ± 0.16 kcal•min-1) were not significantly different between groups (p ≥ .05). Post supplementation REE was significantly increased by 9.5% in the DC group (Δ REE: DC 138 ± 21, WC -30 ± 21 kcal•d-1, p = .001). Neither EEE-50 (DC 4.48 ± 0.16, WC 4.47 ± 0.16 kcal•min-1) nor EEE-100 (DC 6.50 ± 0.17, WC 6.63 ± 0.17 kcal•min-1) were significantly different between groups (p ≥ .05). There was no significant difference within or between group time effects for substrate utilization at rest or during EEE-50 or EEE-100 (p ≥ .05). CONCLUSION: To our knowledge this is the first study to demonstrate that a relatively small daily dosage of DC can significantly elevate REE but does not impact steady state EEE or substrate utilization in a group of athletically fit females. en_US
dc.description.tableofcontents I. INTRODUCTION 1 -- II. REVIEW OF LITERATURE 3 -- History 3 -- The Cacao Tree and Bean 5 -- Varieties of Chocolate 6 -- Nutrition Content and Bioavailability 6 -- Medicinal Uses 7 -- Athletic Application 8 -- Summary 9 -- III. MANUSCRIPT 10 -- Introduction 10 -- Methods 11 -- Results 15 -- Discussion 19 -- REFERENCES 24 -- APPENDIX A: Institutional Review Board Approval 31 -- APPENDIX B: Institutional Review Board Expedited Protocol Approval 48 -- APPENDIX C: Investigators Citi Documents 52 -- APPENDIX D: Valdosta State University Health History and Physical Activity Questionnaire 54 -- APPENDIX E: Assessment of Resting Energy Expenditure 58 -- APPENDIX F: Measurement of Oxygen Uptake and Exercise Metabolism 60 -- APPENDIX G: Velotron Laboratory Cycle 62 -- APPENDIX H: Polar Heart Rate Monitor 64 -- APPENDIX I: Recruitment Poster 66 en_US
dc.description.tableofcontents I. INTRODUCTION 1 -- II. REVIEW OF LITERATURE 3 -- History 3 -- The Cacao Tree and Bean 5 -- Varieties of Chocolate 6 -- Nutrition Content and Bioavailability 6 -- Medicinal Uses 7 -- Athletic Application 8 -- Summary 9 -- III. MANUSCRIPT 10 -- Introduction 10 -- Methods 11 -- Results 15 -- Discussion 19 -- REFERENCES 24 -- APPENDIX A: Institutional Review Board Approval 31 -- APPENDIX B: Institutional Review Board Expedited Protocol Approval 48 -- APPENDIX C: Investigators Citi Documents 52 -- APPENDIX D: Valdosta State University Health History and Physical Activity Questionnaire 54 -- APPENDIX E: Assessment of Resting Energy Expenditure 58 -- APPENDIX F: Measurement of Oxygen Uptake and Exercise Metabolism 60 -- APPENDIX G: Velotron Laboratory Cycle 62 -- APPENDIX H: Polar Heart Rate Monitor 64 -- APPENDIX I: Recruitment Poster 66 en_US
dc.language.iso en_US en_US
dc.language.iso en_US en_US
dc.rights This dissertation is protected by the Copyright Laws of the United States (Public Law 94-553, revised in 1976). Consistent with fair use as defined in the Copyright Laws, brief quotations from this material are allowed with proper acknowledgement. Use of the materials for financial gain with the author's expressed written permissions is not allowed. en_US
dc.subject Academic theses en_US
dc.subject Chocolate en_US
dc.subject Cacao en_US
dc.subject Human physiology en_US
dc.subject Studies and exercises en_US
dc.subject Case studies en_US
dc.subject Respiratory quotient en_US
dc.title Dark Chocolate Supplementation Elevates Resting Energy Expenditure in Exercise Trained Females en_US
dc.type Thesis en_US
dc.contributor.department Department of Exercise Physiology of the College of Nursing & Health Sciences en_US
dc.description.advisor Webster, Michael J.
dc.description.committee Sanderson, Sonya
dc.description.committee Fretti, Sarah
dc.description.degree M.S. en_US
dc.description.degree M.S. en_US
dc.description.major Exercise Physiology en_US
dc.description.major Exercise Physiology en_US


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