Effect of varying carbohydrate and fat intake on endurance athlete performance and health
Not Applicable
Completed
- Conditions
- Sports performance, fuel utilization and health (haematological, cardiovascular, inflammation and bone health)Nutritional, Metabolic, Endocrine
- Registration Number
- ISRCTN70987680
- Lead Sponsor
- Waterford Institute of Technology
- Brief Summary
2018 Results article in https://www.ncbi.nlm.nih.gov/pubmed/29108901 results (added 05/08/2019) 2019 Results article in https://doi.org/10.3390/sports7090201 (added 12/09/2023)
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- Male
- Target Recruitment
- 20
Inclusion Criteria
1. Male
2. Age 18-40 years
3. Endurance athlete for past 12 months completing minimum 7hrs/week training
Exclusion Criteria
1. Not an endurance athlete
2. Already consuming a low carbohydrate high fat diet
3. Unable to complete a 100km time trial
4. Any health conditions such as heart problems, blood pressure
5. Disorders related to enzyme production
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method <br> 1. Nutritional intake (dietary fat, carbohydrate and protein) is measured using the nutritics dietary analysis programme at baseline and 12 weeks<br> 2. Fuel utilization measured through respiratory exchange ratio (RER) using the moxus, was recorded at baseline and 12 weeks<br> 3. Critical power is measured through a 100km time trial on a cycle ergometer at baseline and 12 weeks<br> 4. Blood lactate is measured using lactatepro and was taken at the start of the time trial and every 20km during the time trials undertaken, at baseline and 12 weeks<br>
- Secondary Outcome Measures
Name Time Method <br> 1. Body composition (fat and muscle mass) is measured using a DXA scanner at baseline and 12 weeks<br> 2. Bone density and mass is measured using a DXA scanner at baseline and 12 weeks<br> 3. Blood cholesterol is measured using the randox method at baseline and 12 weeks<br> 4. Serum C reactive protein is measured through ELISA at baseline and 12 weeks<br> 5. Hematology of blood is measured using a hematology analyser at baseline and 12 weeks<br>