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

Maastricht University Medical Centre (MUMC)

Status: Completed

Conditions: Exercise Recovery

Treatments: Dietary Supplement: Carbohydrate; Dietary Supplement: Carbohydrate and caffeine ingestion; Dietary Supplement: Carbohydrate and protein ingestion

Study type: Interventional

Funder types: Other

Identifiers

NCT00975390

08-3-066

Details and patient eligibility

About

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.

Enrollment: 14 patients

Sex: Male

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• male cyclists
• healthy
• BMI < 25

Exclusion criteria

• female
• use of medication
• non cycling
• BMI > 25

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

---

14 participants in 3 patient groups

1

Experimental group

Description:

Carbohydrate ingestion

Treatment:

Dietary Supplement: Carbohydrate

2

Experimental group

Description:

Carbohydrate and protein ingestion

Treatment:

Dietary Supplement: Carbohydrate and protein ingestion

3

Experimental group

Description:

Carbohydrate and caffeine ingestion

Treatment:

Dietary Supplement: Carbohydrate and caffeine ingestion