INCREASES POWER OUTPUT TO ENHANCE PERFORMANCE IN LESS TIME
In many athletic events, competitive athletes need to conquer a certain distance in the shortest time possible. By delaying time to exhaustion, beetroot juice helps extend the maximum amount of physical exertion a person can sustain. This is when BeetBoost comes into play for optimal sport performance.
In 2011 Lansley et al. used nine competitive male cyclists to evaluate nitrate supplementation and power output for the same VO2 (i.e., finishing the distance more quickly) in 4-km and 16.1-km time trials. The athletes drank 500 ml of beetroot juice or placebo 2.5 hr before the time trials.
Cognitive tests completed by the athletes during the second half of the exercise. Compared to placebo, beetroot juice significantly improved the reaction time later on during the exercise.
All athletes completed both time trials faster after drinking beetroot juice
Beetroot juice increased the average power output during both time trials by: 2.8% for 4-km performance
2.7% for 16.1 km performance
In 2012 Cermak, Gibala and van Loon investigated if six days of nitrate supplementation would improve time-trial performance for 12 trained male cyclists. The cyclists drank 140 ml/day of beetroot juice for six consecutive days. Then they completed 1 h of submaximal cycling followed by a 10-km time trial (Cermak, Gibala, & Van Loon, 2012).
THE RESULTS FOR BEETROOT JUICE:
Lowered VO2 during submaximal exercise—3.5% at 45% Wmax and 5.1% at 65% Wmax
Improved time trial performance by 953±18 sec for beetroot juice vs. 965±18 sec for placebo (~15.9 minutes compared to ~16.1 minutes)
Boosted power output by 2.1% (294±12 W for beetroot juice vs. 288±12 W for placebo)
WHY IS THIS IMPORTANT? Nitrates improve cycling efficiency and time trial performance in trained cyclists for events lasting between 5-30 minutes. An improvement in time-to-exhaustion can translate into an improvement in time trial performance. Enhanced exercise efficiency may lead to improved performance.
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