….. but would want to see results of a study with placebos etc
Research by the University of Exeter, published in the journal Medicine and Science in Sports and Exercise, has shown drinking the juice enables competitive-level cyclists to cut down the time it takes to ride a given distance. This is the first study which has shown that beetroot juice can be effective in a simulated competition environment.
For the study, nine club-level competitive male cyclists were asked to compete in time trials over 4km (2.5 mile) and 16.1km (10 mile). All the riders were asked to do each time trial twice. Each time they drank half a litre of beetroot juice beforehand. On one occasion they had normal beetroot juice, on the other occasion – unbeknown to the triallists – the beetroot juice had a key ingredient, nitrate, removed.
The researchers monitored athletes’ VO2 levels (showing the amount of oxygen consumed) during exercise to ensure that the cyclists worked at maximum effort on each occasion.
Results showed that when the cyclists drank ordinary beetroot juice they had a higher power output (measured in watts) for the same level of effort – suggesting their muscles and cardio-vascular system were being more efficient.
On average, riders were 11 seconds (2.8%) quicker over the 4km distance and 45 seconds (2.7%) faster over the 16.1km distance.