Mushroom Blend on Oxygen Kinetics
Acute Effects of a Mushroom Blend on Oxygen Kinetics, Aerobic Power and Time to Fatigue
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Detaljert beskrivelse
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
Registrering (Faktiske)
Registrering
Fase
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
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North Carolina
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Chapel Hill, North Carolina, Forente stater, 27599
- Applied Physiology Laboratory, Fetzer Hall
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Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
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)
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Dobbelt
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
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Aktiv komparator: Mushroom Blend
4 grams daily; oral; 7 and 21 days
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Scivation
Andre navn:
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Placebo komparator: Placebo
4 grams maltodextrin, oral, 7 and 21 days
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Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Oxygen kinetics
Tidsramme: 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
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Lactate
Tidsramme: baseline, 2min, 3min, 6min (pre-post supplementation)
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baseline, 2min, 3min, 6min (pre-post supplementation)
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Cortisol
Tidsramme: during a 6 min
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during a 6 min
|
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Maximal Oxygen Consumption
Tidsramme: 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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Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Samarbeidspartnere
Samarbeidspartnere
Etterforskere
Etterforskere
- Hovedetterforsker: Abbie Smith-Ryan, PhD, University of North Carolina
Studierekorddatoer
Studer hoveddatoer
Studiestart
Studiestart
Primær fullføring (Faktiske)
Primær fullføring
Studiet fullført (Faktiske)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
Andre studie-ID-numre
- 14-0062
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