Exercise Recovery
Conditions
Keywords
Glycogen, Carbohydrate, Protein, Caffeine, Post exercise muscle glycogen synthesis, Sports nutrition
Brief summary
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.
Interventions
DIETARY_SUPPLEMENTCarbohydrate
1.2 g/kg/h
DIETARY_SUPPLEMENTCarbohydrate and protein ingestion
1.2 g/kg/h carbohydrate plus 0.4 g/kg/h protein
DIETARY_SUPPLEMENTCarbohydrate and caffeine ingestion
1.2 g/kg/h carbohydrate and 1.67 g/kg/h caffeine
Sponsors
Maastricht University Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
MALE
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* male cyclists * healthy * BMI \< 25
Exclusion criteria
* female * use of medication * non cycling * BMI \> 25
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Muscle glycogen synthesis rates | 6 hours |
Secondary
| Measure | Time frame |
|---|---|
| Glycogen synthase activity, plasma glucose, insulin, free fatty acids and epinephrine responses | 6 hours |
Countries
Netherlands
Outcome results
None listed