Effect of Capsaicin Supplementation on Performance of and Physiological Response to Repeated Sprinting

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dc.contributor.authorOpheim, Maximilian Nicholasen
dc.contributor.committeechairRankin, Janet L. Walbergen
dc.contributor.committeememberDavy, Kevin P.en
dc.contributor.committeememberHilu, Khidir W.en
dc.contributor.departmentHuman Nutrition, Foods, and Exerciseen
dc.date.accessioned2014-03-14T21:29:59Zen
dc.date.adate2010-03-04en
dc.date.available2014-03-14T21:29:59Zen
dc.date.issued2010-02-02en
dc.date.rdate2010-03-04en
dc.date.sdate2010-02-16en
dc.description.abstractAim: Fatigue during team sports requiring multiple sprints can result from the combined effects of metabolic, mechanical, neurological, and immune factors. The purpose of this study was to investigate the influence of capsaicin on performance of and the physiological response to an exercise test simulating the fitness demands of team sport game conditions. Methods: This study was a placebo-controlled, crossover design. Nineteen healthy male experienced athletes age 18-30 yr consumed either 3 g/d cayenne (25.8 mg/d capsaicin) or placebo for 1 wk. Directly following the supplementation period, they completed a repeated sprint test consisting of 15 30 m maximal effort sprints on 35 s intervals. Sprint times were recorded via electronic dual-beam timing system. Fasted blood draws for interleukin-6 (IL-6) were taken at baseline prior to supplementation, 45-min pretest, and immediately post test. Heart rate (HR), blood pressure (BP), rate of perceived exertion (RPE), muscle soreness (MS), and gastrointestinal distress (GD) were measured 1-min pretest, during, posttest, and 1-min posttest. MS was also measured for 3 d posttest. Results: Relative to the placebo, capsaicin significantly reduced maximum HR by 9.3%, total average HR by 8.5%, and sprinting average HR by 6.0% (P<0.05). Capsaicin caused GD of at least 2/5 in 24.5% of subjects. There was no difference between treatments in fastest or mean sprint time, fatigue, percent change or difference in IL-6, BP, RPE, sprint or posttest MS. Conclusion: Capsaicin did not influence repeated sprint performance or the inflammatory response, but reduced HR during intense activity and causes substantial GD.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-02162010-170824en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02162010-170824/en
dc.identifier.urihttp://hdl.handle.net/10919/41217en
dc.publisherVirginia Techen
dc.relation.haspartOpheim_MN_T_2010.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectRate of Perceived Exertionen
dc.subjectBlood Pressureen
dc.subjectInterleukin 6en
dc.subjectIntense Exerciseen
dc.subjectCayenneen
dc.subjectMuscle Sorenessen
dc.titleEffect of Capsaicin Supplementation on Performance of and Physiological Response to Repeated Sprintingen
dc.typeThesisen
thesis.degree.disciplineHuman Nutrition, Foods, and Exerciseen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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