- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT06431334
Proteinkrav blandt mandlige atleter på mastersniveau efter en cykeltræningskamp som bestemt af indikatoren aminosyreoxidationsteknikken
Masters level cyclists are a population above the age of 35 years who frequently participate in prolonged as well as heavy-volume training. Like most endurance-trained athletes, a greater recommended dietary allowance (RDA) for protein of 1.2-1.4 g/kg/bw is suggested.
Dietary protein intake is vital for maximizing the benefits of training and ensuring optimal recovery. Dietary recommendations traditionally have been determined through nitrogen balance techniques, however, recent research indicates how this method is potentially underestimating protein requirements. Therefore, there is a need to reassess current dietary recommendations in order to meet the demands of physical activity for highly active populations.
Recent efforts to understand protein requirements during rest and following exercise have been completed using the indicator amino acid technique (IAAO). This non-invasive method is reported to provide a robust measure of protein requirements. However, there is limited work in older (≥60 years) active populations.
The purpose of this study is to measure the protein requirements in master cyclists, following an endurance training session, using the non-invasive IAAO technique.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Quebec
-
Montreal, Quebec, Canada, H3A 0G4
- McGill University
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- 18.5< BMI <35 kg/m^2
- Overtly healthy masters level cyclists ≥65 years
- Masters level cyclist training (>4 days per week; ~100 km per week)
- Body mass stable over previous 6-months
- Availability for multiple metabolic trials (~7 trials)
- Ability to travel to and from laboratory facility
Exclusion Criteria:
- Recent history of weight loss or weight gain (>5% body weight)
- Uncontrolled hypertension
- ≥2 chronic diseases (e.g. diabetes, osteoporosis, dyslipidemia)
- Acute illness that could affect protein metabolism (HIV, renal dysfunction, influenza)
- Currently using anti-inflammatory medications
- Inability to adhere to study protocol (i.e., alcohol, caffeine, dietary restrictions)
- Regular tobacco user
- Illicit drug use
- Habitually ingesting ≥3 g/kg/bw
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Masters Level Cyclists
Participants are to be randomly assigned varying levels of amino acid intakes ranging between 0.2 to 2.8 g/kg/d |
Amino acid intakes will vary between 0.2 to 2.8 g/kg/d |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
13CO2 Excretion
Tidsramme: 7-weeks
|
Measured by continuous-flow isotope ratio mass spectrometry |
7-weeks
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
L[13C]phenylalanine Oxidation
Tidsramme: 7-weeks
|
Measured by gas chromatography-mass spectrometry |
7-weeks
|
Samarbejdspartnere og efterforskere
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- A06-M25-23A
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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