Mushroom Blend on Oxygen Kinetics
Acute Effects of a Mushroom Blend on Oxygen Kinetics, Aerobic Power and Time to Fatigue
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Gedetailleerde beschrijving
Participants: Twenty-eight, healthy, active, recreationally-trained adults ages 18-35.
Procedures (methods): All subjects will report to the Applied Physiology Laboratory in Fetzer Rm 025 for phase I of the study for a total of 7 visits. A randomly selected subset of 8 participants will continue to phase II, and return to the lab for an additional 3 visits to evaluate feasibility. Visit 1 will consist of a physical, enrollment and consenting. Visits, 2, 3, and 4 will be separated by a minimum of 24 hours. During visit 2, participants will perform a maximal oxygen consumption (VO2max) test on a cycle ergometer. During visit 3 participants will be asked to complete a 6-minute oxygen kinetics test on a cycle ergometer; lactate threshold and oxygen saturation will be measured at baseline, minutes 2, 3 and 6 during the 6 min ride. During visit 4, participants will perform a 3-minute critical power (CP) test and will provide a saliva sample, to be measured for cortisol levels, immediately prior to and after the CP test. Following visit 4, participants will be randomly assigned, in a double-blind fashion, to either a placebo or mushroom blend treatment group. Participants in the placebo and treatment groups will be asked to consume 2 servings, 3 times daily for 7 days. Following supplementation, participants will return to the laboratory for visits 5-7, each of which will be separated by a minimum of 24 hours. The same protocol performed during visits 2-4 will be repeated in the same order for visits 5-7; the VO 2max test, the 6 min oxygen kinetics test, and the CP test with a pre and post saliva sample. The randomly selected subset of 8 participants will continue into phase II (n=4 for treatment; n=4 for placebo). During phase II, the 8 participants in the placebo and treatment groups will be asked to consume 2 servings, 3 times daily for 14 additional days to determine feasibility of a longer supplementation phase. Following supplementation, the same protocol performed during visits 2-4 will be repeated in the same order for visits 8-10, each of which will be separated by a minimum of 24 hours.
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Fase
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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North Carolina
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Chapel Hill, North Carolina, Verenigde Staten, 27599
- Applied Physiology Laboratory, Fetzer Hall
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Participant has been involved in exercise program for a minimum of one year prior to recruitment (≥ 3 d/wk)
- Participant is able to exercise (i.e. no existing musculoskeletal injury)
- Participant is willing and able to comply with the protocol
- Participant is apparently healthy and free from disease, as determined by a health history questionnaire and physical
- Participant agrees to abstain from smoking, caffeine, tobacco, and alcohol before testing days
- Participant agrees to abstain from exercise 24 hours prior to each testing visit
- Participant is not allergic to mushrooms
Exclusion Criteria:
- Participant has a BMI ≤ 28 kg/m² (pre-screening inclusion)
- Having a history of medical or surgical events that may significantly affect the study outcome, including cardiovascular disease, metabolic, renal, hepatic, or musculoskeletal disorders
- Participant is using, or has used one of the following dietary supplements within 12 weeks prior to enrollment: Beta-alanine, Creatine, Carnosine or Taurine
- Participant has lost or gained greater than ten pounds within the previous 3 month
- Participant is currently enrolled in another clinical trial.
- Participant has a known allergy or sensitivity to any ingredient in the test product or placebo (determined from health history questionnaire)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / Behandeling |
|---|---|
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Actieve vergelijker: Mushroom Blend
4 grams daily; oral; 7 and 21 days
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Scivation
Andere namen:
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Placebo-vergelijker: Placebo
4 grams maltodextrin, oral, 7 and 21 days
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Oxygen kinetics
Tijdsspanne: during a 6 min
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oxygen uptake and utilization using indirect calorimetry during a 6 min steady-state exercise bout
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during a 6 min
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Critical Power
Tijdsspanne: during a 3 min
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3 min all-out cycling test to measure anaerobic and aerobic performance
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during a 3 min
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Lactate
Tijdsspanne: baseline, 2min, 3min, 6min (pre-post supplementation)
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baseline, 2min, 3min, 6min (pre-post supplementation)
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Cortisol
Tijdsspanne: during a 6 min
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during a 6 min
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Maximal Oxygen Consumption
Tijdsspanne: during a graded exercise test to exhaustion
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oxygen consumption and utilization using indirect calorimetry during a graded exercise test
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during a graded exercise test to exhaustion
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Medewerkers en onderzoekers
Sponsor
Sponsor
Medewerkers
Medewerkers
Onderzoekers
Onderzoekers
- Hoofdonderzoeker: Abbie Smith-Ryan, PhD, University of North Carolina
Studie record data
Bestudeer belangrijke data
Studie start
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Andere studie-ID-nummers
Andere studie-ID-nummers
- 14-0062
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