Muscle Glycogen Synthesis When Caffeine and Protein is Co-Ingested With Carbohydrates

The recruitment status of this study is unknown because the information has not been verified recently.
Verified September 2009 by Maastricht University Medical Center.
Recruitment status was  Active, not recruiting
Sponsor:
Information provided by:
Maastricht University Medical Center
ClinicalTrials.gov Identifier:
NCT00975390
First received: September 10, 2009
Last updated: NA
Last verified: September 2009
History: No changes posted

September 10, 2009
September 10, 2009
February 2009
September 2009   (final data collection date for primary outcome measure)
Muscle glycogen synthesis rates [ Time Frame: 6 hours ] [ Designated as safety issue: No ]
Same as current
No Changes Posted
Glycogen synthase activity, plasma glucose, insulin, free fatty acids and epinephrine responses [ Time Frame: 6 hours ] [ Designated as safety issue: No ]
Same as current
Not Provided
Not Provided
 
Muscle Glycogen Synthesis When Caffeine and Protein is Co-Ingested With Carbohydrates
The Effect of Caffeine or Protein Co-ingestion With Carbohydrate on Post-exercise Muscle Glycogen Synthesis Rate.

The aim of the present study is to investigate the effect of added protein+leucine or caffeine to 1.2 g/kg/h CHO on the rate of post-exercise muscle glycogen re-synthesis in healthy, recreational athletes.

The investigators hypothesize that both interventions (the addition of caffeine or protein+leucine) will lead to higher glycogen re-synthesis compared to the ingestion of CHO only, and that the co-ingestion of protein and leucine will result in the highest muscle glycogen synthesis rates.

Not Provided
Interventional
Not Provided
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Basic Science
Exercise Recovery
  • Dietary Supplement: Carbohydrate
    1.2 g/kg/h
  • Dietary Supplement: Carbohydrate and protein ingestion
    1.2 g/kg/h carbohydrate plus 0.4 g/kg/h protein
  • Dietary Supplement: Carbohydrate and caffeine ingestion
    1.2 g/kg/h carbohydrate and 1.67 g/kg/h caffeine
  • Experimental: 1
    Carbohydrate ingestion
    Intervention: Dietary Supplement: Carbohydrate
  • Experimental: 2
    Carbohydrate and protein ingestion
    Intervention: Dietary Supplement: Carbohydrate and protein ingestion
  • Experimental: 3
    Carbohydrate and caffeine ingestion
    Intervention: Dietary Supplement: Carbohydrate and caffeine ingestion
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Active, not recruiting
14
November 2009
September 2009   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • male cyclists
  • healthy
  • BMI < 25

Exclusion Criteria:

  • female
  • use of medication
  • non cycling
  • BMI > 25
Male
18 Years to 35 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Netherlands
 
NCT00975390
08-3-066
No
Luc van Loon, Maastricht University
Maastricht University Medical Center
Not Provided
Not Provided
Maastricht University Medical Center
September 2009

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP