Status:

COMPLETED

Effect of Supplementing a Mixed Macronutrient Beverage With Graded Doses of Leucine on Myofibrillar Protein Synthesis

Lead Sponsor:

McMaster University

Conditions:

Muscle Protein Synthesis

Eligibility:

MALE

18-35 years

Phase:

NA

Brief Summary

Muscle mass is normally maintained through the regulated balance between the processes of protein synthesis (i.e. making new muscle proteins) and protein breakdown (breaking down old muscle proteins)....

Detailed Description

The processes of muscle protein synthesis (MPS) and muscle protein breakdown (MPB) occur concurrently. This constant protein turnover allows the muscle fiber to change its protein structure if loading...

Eligibility Criteria

Inclusion

  • Male
  • Healthy and physically active (as determined by medical and activity questionnaire)
  • 18-35 years of age
  • 70-90 kg body mass
  • Having given informed consent

Exclusion

  • Exhibiting health risk factors as identified on the health screening questionnaire
  • Having any identified metabolic or intestinal disorders
  • Tobacco use
  • Aspirin use in the 4 days prior to the experimental trial
  • Consumption of prescription medications or any performance enhancing agent
  • Inability to endure the strenuous exercise bouts e.g. injuries
  • Alcohol intake during the 48 hours prior to each of the testing days
  • Currently participating or having participated in another clinical trial during the last 4 weeks prior to the beginning of this study
  • Have given blood in the last three weeks
  • Verbal confirmation that they have used a substance on the WADA banned list within the last year

Key Trial Info

Start Date :

January 1 2011

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

May 1 2011

Estimated Enrollment :

40 Patients enrolled

Trial Details

Trial ID

NCT01885429

Start Date

January 1 2011

End Date

May 1 2011

Last Update

July 30 2013

Active Locations (1)

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1

McMaster University

Hamilton, Ontario, Canada, L8S 4K1