Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Dose Effect of a Plant Extract on Fatigue

14 januari 2020 bijgewerkt door: PepsiCo Global R&D

Effects of Two Doses of a Plant Extract on Mental and Physical Fatigue

Test the short-term effects of the acute consumption of two separate beverages containing different concentrations of polyphenols, a beverage containing 75 mg of caffeine and a flavored placebo beverage on mental energy and physical performance

Studie Overzicht

Toestand

Voltooid

Interventie / Behandeling

Studietype

Ingrijpend

Inschrijving (Werkelijk)

28

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

    • Georgia
      • Athens, Georgia, Verenigde Staten, 30602
        • University of Georgia

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 49 jaar (Volwassen)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • 18-49 years of age
  • Self-report of good health
  • Physical activity requirement: Recreationally active (exercise ≥3 times per week for >30 minutes per session; both cyclists and non-cyclists may enroll)

Exclusion Criteria:

  • Under the care of a physician
  • Visual impairment that cannot be corrected with glasses or contact lenses
  • Inability to perform high intensity exercise (defined perceptually as exercise that feels at least "hard" and this is usually quantified using the Borg 6 to 20 scale. High intensity cycling exercise is defined objectively as exercise causing a high heart rate, defined as a heart rate that is equal to or greater than 70% of heart rate reserve.)
  • Inability to adequately perform the cognitive tasks (i.e., cannot complete the task due to -inability to understand instructions or >50% incorrect responses)
  • Presence of current or chronic gastrointestinal, sleep or psychiatric disorder
  • Pregnant/lactating
  • Current smoker
  • Report illegal drug use
  • Report hypersensitivity to caffeine
  • Food allergies/intolerances/sensitivities (including coffee or related foods/beverages/products)
  • Current use of dietary supplements, or prescription medication except for oral contraceptives
  • Unwillingness to abstain from over the counter medications (e.g. NSAIDS, allergy medications) and caffeine/coffee/foods high in polyphenols for 12 hours prior to the study
  • Unwilling to refrain from consuming apple and grapefruit products on study days and 12 hours prior to test days.
  • Participation in another clinical trial within the past 30 days or participation in another PepsiCo trial in the past 6 months

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Fundamentele wetenschap
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Placebo-vergelijker: Flavored Beverage Mix 1
Flavored still beverage
Consume one beverage at the beginning of each visit of the cross-over sequence
Experimenteel: Flavored Beverage Mix 2
Flavored still beverage with polyphenols, concentration 1
Consume one beverage at the beginning of each visit of the cross-over sequence
Experimenteel: Flavored Beverage Mix 3
Flavored still beverage with polyphenols, concentration 2
Consume one beverage at the beginning of each visit of the cross-over sequence
Experimenteel: Flavored Beverage Mix 4
Flavored still beverage with caffeine
Consume one beverage at the beginning of each visit of the cross-over sequence

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Subjective mental energy: Cognitive test battery
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective measures of mental alertness and mental fatigue through computer administered cognitive test battery domains of short-term memory, attention and mood. Tasks are word presentation, word recognition, picture presentation, picture recognition, Cognitive Demand Battery (CDB) serial 3 and serial 7 subtraction, and Bakan task/Rapid Visual Information Processing (RVIP). Performance measures: % correct, % errors and response time in milliseconds.
Baseline and 60 min post treatment
Subjective mental energy: VAS for mental alertness
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective ratings of mental alertness following computer administered cognitively fatiguing tasks. Visual Analog Scale (VAS) for mental alertness has the score range 0-100 (from not at all to extremely).
Baseline and 60 min post treatment
Subjective mental energy: VAS for motivation
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective ratings of motivation following computer administered cognitively fatiguing tasks. Visual Analog Scale (VAS) for motivation has the score range 0-100 (from not at all to extremely).
Baseline and 60 min post treatment
Subjective mental energy: VAS for mental fatigue
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective ratings of fatigue following computer administered cognitively fatiguing tasks. Visual Analog Scale (VAS) for fatigue has the score range 0-100 (from not at all to extremely).
Baseline and 60 min post treatment
Subjective mental and physical energy: VAS for mental and physical state and trait energy and fatigue (EFS State Scales)
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective ratings of mental alertness, motivation and fatigue following computer administered cognitively fatiguing tasks. Mental and Physical State and Trait Energy and Fatigue Scales (EFS State Scales) consist of 12 VAS items to measure intensity of current feeling of physical energy and fatigue and mental energy and fatigue (3 sub-scales each). Score range: The 3 items from each sub-scale are summed and scores for each sub-scale range from 0-300 (none to strongest).
Baseline and 60 min post treatment
Subjective mental energy: VAS for mood
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective ratings of mental alertness, motivation and fatigue following computer administered cognitively fatiguing tasks. The Bond-Lader test uses 16 Visual Analog Scales (VAS) to measure different aspects of mood, with score range 0-100 for each scale (from absence of feeling to presence of feeling).
Baseline and 60 min post treatment
Subjective mental energy: VAS for caffeine symptoms
Tijdsspanne: Baseline and 60 min post treatment
Changes in subjective ratings of mental alertness, motivation and fatigue following computer administered cognitively fatiguing tasks. Caffeine symptoms are measured on paper using 8 Visual Analog Scales (VAS) with score range 0-100 (from not at all to extremely).
Baseline and 60 min post treatment

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Physical performance
Tijdsspanne: During the last 3 minutes of 23 min high intensity cycling exercise (10 x 1 min work intervals each followed by 1 min rest. No rest after final interval, 3 min max power from minutes 20-23.
Mean power output in a timed cycling trial following post-treatment cognitive test battery and caffeine symptom VAS.
During the last 3 minutes of 23 min high intensity cycling exercise (10 x 1 min work intervals each followed by 1 min rest. No rest after final interval, 3 min max power from minutes 20-23.
Physical Fatigue
Tijdsspanne: After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Subjective categorical scale, score range 0-7, higher score indicates greater feeling of physical fatigue
After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Alertness
Tijdsspanne: After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Subjective categorical scale, score range 1-7, higher score indicates greater alertness meaning a greater feeling of energy
After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Effort
Tijdsspanne: After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Subjective categorical scale, Borg Ratings of Perceived Exertion (RPE) measures perception of effort, score range 6-20. Higher score indicates greater effort. 17 or greater generally indicates maximal effort
After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Quadriceps muscle pain
Tijdsspanne: After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.
Subjective categorical scale with ratio-like properties, scale 0-10 with open-ended option for ratings greater than but proportional to 10. Higher scores indicate greater perception of pain in the quadriceps
After each of 10 1-minute high intensity cycling intervals separated by 1 min rest and at end of exercise.

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Patrick J O'Connor, PhD, University of Georgia

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

29 januari 2019

Primaire voltooiing (Werkelijk)

6 december 2019

Studie voltooiing (Werkelijk)

6 december 2019

Studieregistratiedata

Eerst ingediend

26 februari 2019

Eerst ingediend dat voldeed aan de QC-criteria

8 maart 2019

Eerst geplaatst (Werkelijk)

11 maart 2019

Updates van studierecords

Laatste update geplaatst (Werkelijk)

18 januari 2020

Laatste update ingediend die voldeed aan QC-criteria

14 januari 2020

Laatst geverifieerd

1 januari 2020

Meer informatie

Termen gerelateerd aan deze studie

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

Ja

Beschrijving IPD-plan

IPD will be kept securely at U. Georgia for several years and can be accessed upon request by contacting Dr. Pat O'Connor (poconnor@uga.edu)

IPD-tijdsbestek voor delen

After publication

IPD-toegangscriteria voor delen

Open access, upon request

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Klinische onderzoeken op Mental Energy

3
Abonneren