Meat and Whey Protein Supplementation in Endurance Athletes
NCT ID: NCT02954367
Last Updated: 2016-11-03
Study Results
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Basic Information
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UNKNOWN
NA
44 participants
INTERVENTIONAL
2016-04-30
Brief Summary
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Detailed Description
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Participants will be divided in two-treatment groups 1) Hydrolysed meat-protein + whey (PROT); and 2) non-protein iso-energetic placebo (CHO). Once considered eligible for the study, and after an initial familiarisation period plus baseline tests (endurance performance body composition and blood extractions) participants will be randomly assigned to one of the intervention groups: PROT and CHO. Each group will follow a 10-week periodised endurance training intervention combined with one of the two specific supplementation treatments (PROT or CHO). Measurements of performance (VO2peak, vetilatory threshold and time to exhaustion at maximal aerobic intensity), body composition (fat and fat free mass), microbiota and haematology will be determined before and after the 10-week intervention period.
Once informed consent and health history have been obtained, after the baseline assessment (t1), participants will be divided into two similar profile groups, matched by body mass, age, sex and maximal oxygen uptake (VO2peak): (1) PROT (2) CHO
INTERVENTION The intervention will comprise of a 10-week combined supplementation (MEAT + W and CHO) regular endurance-training programme.
Endurance training Participants will commit to follow a polarised triphasic endurance-training model. This model contains three intensity zones calculated as low intensity \[\< the first ventilatory threshold (VT1), \~ 70% HRmax\]; moderate intensity \[between VT1 and respiratory compensation point or ventilatory threshold 2 (VT2), \>70 \< 90% HRmax\]; and high intensity \[\>VT2, 90% HRmax\]. Participants will train 5 to 6 times per week with a total percentage distribution of 75 to 80% at low intensity; 10% at moderate intensity, and 15 to 10% at high intensity.
Cardiorespiratory test Participants will perform a maximal cardiorespiratory exercise test before the training period to determine peak oxygen uptake (VO2peak) and ventilatory thresholds. Percentage of HRmax and the 15 points (6 to 20) Borg Scale Rate of Perceive Exertion (RPE) will be used to appropriately select the load along the training intervention.
Supplementation protocol Training days: Immediately (\<10 min) after completing each training session, participants will consume a beverage containing 20g of supplement (10g MEAT + 10g W) plus 200 ml of orange juice or only carbohydrate placebo (maltodextrine and orange juice).
Non-training days: before breakfast.
Supplements and placebo will be provided in powder form and should be mixed with 200ml of orange juice and water at the moment of consumption.
The supplements and placebo will look and taste identical.
Thus a total of one 20g doses will be administered on a daily base. Participants are required to ingest a total of 70 for the total of 10 weeks of the study intervention.
Supplements will be provided in 14 days intervals and distributed by a blinded researcher after participants return the empty bag of the supplement/placebo consumed during the previous 14 day period.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
QUADRUPLE
Study Groups
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PROTEIN (MEAT + WHEY)
Post workout (training days) or breakfast (non training days) 20g of meat protein (10g meat + 10g whey) mixed with 200ml of orange juice and water
PROTEIN
Immediately (\<10 min) after completing each training session (resistance training) participants will consume a beverage containing 20g of meat protein (10g) plus whey (10g) mixed with 200 ml of orange juice and water. On non-training days supplement will be ingested before breakfast.
CARBOHYDRATE (CHO)
Post workout (training days) or breakfast (non training days) 20g of maltodextrin mixed with 200ml orange juice and water
CARBOHYDRATE
Immediately (\<10 min) after completing each training session (resistance training), participants will consume a beverage containing about 20g of maltodextrin mixed with 200 ml of orange juice and water. On non-training days supplement will be ingested before breakfast.
Interventions
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PROTEIN
Immediately (\<10 min) after completing each training session (resistance training) participants will consume a beverage containing 20g of meat protein (10g) plus whey (10g) mixed with 200 ml of orange juice and water. On non-training days supplement will be ingested before breakfast.
CARBOHYDRATE
Immediately (\<10 min) after completing each training session (resistance training), participants will consume a beverage containing about 20g of maltodextrin mixed with 200 ml of orange juice and water. On non-training days supplement will be ingested before breakfast.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Vo2max \>50ml/kg/min
* Regularly trained athletes,
* Minimum 3 years of experience in resistance training exercise,
* Volunteers,
Exclusion Criteria
* use of medications, smoking, and nutritional supplements known to affect physical performance, muscle damage or recovery process (e.g., creatine, whey protein, and amino acids) within 6 weeks prior to the start of the study.
18 Years
45 Years
ALL
Yes
Sponsors
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University of Greenwich
OTHER
Universidad Europea de Madrid
OTHER
Responsible Party
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DIEGO MORENO PÉREZ
PhD
Principal Investigators
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DIEGO MORENO, PhD
Role: PRINCIPAL_INVESTIGATOR
Universidad Europea de Madrid
FERNANDO NACLERIO, PhD
Role: PRINCIPAL_INVESTIGATOR
University of Greenwich
References
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Moreno-Perez D, Lopez-Samanes A, Larrosa M, Larumbe-Zabala E, Centeno A, Roberts J, Naclerio F. Effects of protein-carbohydrate vs. carbohydrate alone supplementation on immune inflammation markers in endurance athletes: a randomized controlled trial. Eur J Appl Physiol. 2023 Jul;123(7):1495-1505. doi: 10.1007/s00421-023-05168-6. Epub 2023 Mar 14.
Other Identifiers
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BEEF-UEM-01
Identifier Type: -
Identifier Source: org_study_id