Melatonin Supplementation and Performance (MSP)
18. august 2016 oppdatert av: 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.
Studieoversikt
Status
Avsluttet
Forhold
Intervensjon / Behandling
Studietype
Intervensjonell
Registrering (Faktiske)
12
Fase
- Tidlig fase 1
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
20 år til 23 år (Voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Mann
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
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Grunnvitenskap
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
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Placebo komparator: Placebo
|
In a double-blind randomized design, participants have taken placebo supplementation in one of the three experimental sessions
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Eksperimentell: 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
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Hooper's index score
Tidsramme: At 07:30 am in the following day of the supplementation
|
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.
|
Blood lactate was measured only 3 minutes after physical testing in the following day of the supplementation
|
|
reaction time (in secondes)
Tidsramme: At 07:30 am in the following day of the supplementation
|
Reaction time was measured using an electronic timing device.
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At 07:30 am in the following day of the supplementation
|
|
vigilance score
Tidsramme: At 07:30 am in the following day of the supplementation
|
Vigilance score was measured using a specific questionnaire
|
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
|
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
|
Glucose level was assessed using a glucometer
|
At 07:30 am in the following day of the supplementation (rest condition) and 3 minutes after physical testing in each experimental session
|
|
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
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. desember 2012
Primær fullføring (Faktiske)
1. januar 2013
Studiet fullført (Faktiske)
1. januar 2013
Datoer for studieregistrering
Først innsendt
2. august 2016
Først innsendt som oppfylte QC-kriteriene
18. august 2016
Først lagt ut (Anslag)
24. august 2016
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
24. august 2016
Siste oppdatering sendt inn som oppfylte QC-kriteriene
18. august 2016
Sist bekreftet
1. august 2016
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- CNMSS1
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