Melatonin Supplementation and Performance (MSP)
18. august 2016 opdateret af: kais
Nocturnal Melatonin Ingestion Ameliorates Short Term Maximal Performances on the Following Day
The present study aimed to evaluate the possible effect of nocturnal melatonin ingestion upon short-term performances, on the following morning.
Twelve soccer players from a Tunisian squad (22.9 ±1.3 years, 1.80±0.05
m, and 72.0±8.8 kg) were volunteered to perform three testing sessions, with one test session per day.
During each session, MEL (5mg) , MEL (8mg) or placebo were ingested, in a randomized order, before nocturnal sleep.
The next morning (08:00h), participants performed the following psycho-cognitive and physical tests: Hooper's index, reaction time, vigilance, handgrip strength , squat jump , modified agility test , Wingate anaerobic test (peak power , mean power and fatigue index ).
Rating of perceived exertion was recorded immediately after the WanT, and blood lactate measures were taken after 3min of recovery.
Blood glucose was measured before and 3 min after the Wingate test.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
12
Fase
- Tidlig fase 1
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
20 år til 23 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Han
Beskrivelse
Inclusion Criteria:
The participants were recruited based on the following criteria: (i) paticipants must be trained at 4-6 days per week for an average of 2 h daily and (ii) they must have at least 8 years of training experience
Exclusion Criteria:
- Subjects were excluded from the study if they present one of the following criteria : heart failure, antioxidant supplementation within 3 months before the study, lower-limb injuries
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Placebo komparator: Placebo
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In a double-blind randomized design, participants have taken placebo supplementation in one of the three experimental sessions
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Eksperimentel: Melatonin
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Our protocol was composed of three experimental sessions.
During each testing session, participants were requested to attend the laboratory at 20:00h where they ingested a standardized light meal.
Melatonin (5 mg or 8 mg) or placebo were ingested in capsule in the evening at 21:00h in a double-blind randomized design
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Hooper's index score
Tidsramme: At 07:30 am in the following day of the supplementation
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Hooper's index score was measured using a specific questionnaire
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At 07:30 am in the following day of the supplementation
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handgrip strength (in Kg)
Tidsramme: At 07:30 am in the following day of the supplementation
|
handgrip strength was measured using a calibrated hand dynamometer.
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At 07:30 am in the following day of the supplementation
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Blood lactate (µmol/l)
Tidsramme: Blood lactate was measured only 3 minutes after physical testing in the following day of the supplementation
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Lactate level was measured using Lactate Pro instrument.
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Blood lactate was measured only 3 minutes after physical testing in the following day of the supplementation
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reaction time (in secondes)
Tidsramme: At 07:30 am in the following day of the supplementation
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Reaction time was measured using an electronic timing device.
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At 07:30 am in the following day of the supplementation
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vigilance score
Tidsramme: At 07:30 am in the following day of the supplementation
|
Vigilance score was measured using a specific questionnaire
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At 07:30 am in the following day of the supplementation
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squat jump (in centimeters)
Tidsramme: At 07:30 am in the following day of the supplementation
|
Squat jump was assessed using a infrared jump system
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At 07:30 am in the following day of the supplementation
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agility (in secondes)
Tidsramme: At 07:30 am in the following day of the supplementation
|
Agility was assessed using an electronic timing system.
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At 07:30 am in the following day of the supplementation
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anaerobic capacity (In watts)
Tidsramme: At 07:30 am in the following day of the supplementation
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Anaerobic capacity was assessed using a calibrated friction-loaded cycle ergometer
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At 07:30 am in the following day of the supplementation
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glucose level (µmol/l)
Tidsramme: At 07:30 am in the following day of the supplementation (rest condition) and 3 minutes after physical testing in each experimental session
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Glucose level was assessed using a glucometer
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At 07:30 am in the following day of the supplementation (rest condition) and 3 minutes after physical testing in each experimental session
|
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Rating of perceived exertion score
Tidsramme: Rating of perceived exertion score was measured 3 minutes after physical testing in the following day of the supplementation
|
Rating of perceived exertion score was measured using a specific questionnaire
|
Rating of perceived exertion score was measured 3 minutes after physical testing in the following day of the supplementation
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. december 2012
Primær færdiggørelse (Faktiske)
1. januar 2013
Studieafslutning (Faktiske)
1. januar 2013
Datoer for studieregistrering
Først indsendt
2. august 2016
Først indsendt, der opfyldte QC-kriterier
18. august 2016
Først opslået (Skøn)
24. august 2016
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
24. august 2016
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
18. august 2016
Sidst verificeret
1. august 2016
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- CNMSS1
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