A high dose of nitrate given in the form of a sports drink does not improve performance of trained cyclists during a 40 km cycling time trial

In March 2019 researchers from the UK published the results of their study to assess the effect of nitrate intake on 40 km time trial performance. A total of 11 trained cyclists, average age 36 years, were involved in the study. On three occasions, individuals completed a 40 km time trial on a Velotron® ergometer following the intake of either 140ml of a sports drink containing 12.8 mmol or 800 mg of nitrate, a placebo drink or nothing. Performance, oxygen consumption, blood bicarbonate, pH and lactate were assessed, as well as the individual rating their own perceived exertion, every 10 km throughout the time trial. Results showed that nitrate containing sports drink had little, if any, effect on time trial performance or oxygen consumption. Similarly, lactate and the rating given by the individuals on perceived exertion were also unaffected.

Mosher SL et al. High dose Nitrate ingestion does not improve 40 km cycling time trial performance in trained cyclists. Res Sports Med. 2019 Mar 8:1-9. [Epub ahead of print]

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