Exercise Nutritional Physiology
Conditions
Brief summary
The aim of this study is to investigate wether beetroot juice or sodium nitrate enhances time trial performance in Swiss paracycling athletes compared to the ingestion of a placebo supplement. Furthermore, the effects of beetroot juice and sodium nitrate on performance will be investigated in spinal cord injured and non-injured athletes.
Detailed description
The influence of dietary nitrate on performance will be tested performing a time trial on a handbike. The time trial will be the same as in the Paralympics 2016 in Rio. The subjects perform three trials and receive another supplement for each trial: beetroot juice with 6mmol nitrate, 6mmol sodium nitrate or plain water (placebo supplement). The time to complete the time trial will be the main outcome parameter.
Interventions
DIETARY_SUPPLEMENTbeetroot juice
6mmol nitrate
DIETARY_SUPPLEMENTsodium nitrate
6mmol sodium nitrate
DIETARY_SUPPLEMENTwater
plain water
Sponsors
Swiss Paraplegic Research, Nottwil
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
MALE
Age
18 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy paracycling athletes * healthy, able-bodied, upper-body trained individuals
Exclusion criteria
* female * smoking * any medication affecting performance * medical conditions affecting performance
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| time to perform trial | 3 hours after supplement ingestion |
Secondary
| Measure | Time frame |
|---|---|
| oxygen consumption during time trial performance measured by a metabolic cart (Oxycon Pro) in ml/min/kg | 3 hours after supplement ingestion |
Countries
Switzerland
Outcome results
None listed