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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
9
6mmol nitrate
6mmol sodium nitrate
plain water
Swiss Paraplegic Centre
Nottwil, Canton of Lucerne, Switzerland
time to perform trial
Time frame: 3 hours after supplement ingestion
oxygen consumption during time trial performance measured by a metabolic cart (Oxycon Pro) in ml/min/kg
Time frame: 3 hours after supplement ingestion
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