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Want to improve your 5km running time? A new study (1) has revealed for the first time that one dose of three capsules of CurraNZ can support running performance with gains of up to 5.7%
This new study confirms that one higher dose can also give recreational runners, such as Parkrunners, a healthy performance lift.
The University of Chester (UK) study, performed in 16 trained male runners and triathletes, tested the effect of three capsules of CurraNZ blackcurrant extract (900mg / 315mg anthocyanin) taken two hours before the 5km treadmill test. Findings showed:
On average, runners participating in the double-blind randomised crossover-design study ran 3% faster with 900mg (three capsules) of the berry extract, an exciting development for recreational athletes looking to blitz their next parkrun.
Dr Samantha Moss, Senior Lecturer in Physiology and Sports Sciences at the University of Chester, who led the study, said: “We were surprised to see the differences in running times between the conditions.
"As part of our analysis, we calculated an effect size (d) value which allows us to interpret how meaningful performance changes are. In our study, we observed a small meaningful effect (d=0.23) of blackcurrant extract on time-trial performance.
“The novelty is that New Zealand blackcurrant can be used as a performance enhancing aid on an acute basis, which may suit a lot of recreational athletes preparing for a race.
“When added to a nutritious diet, race preparation could be optimised by taking one dose of three capsules of blackcurrant extract, offering athletes a simple approach to achieving meaningful performance improvements to 5km race times.”
Reference
Samantha L. Moss1, Edward Brindley1, Kevin Enright2, Jamie Highton1 & Richard Bott1 The effects of an acute dose of New Zealand blackcurrant extract on 5 km running performance Int J Sport Nutr Exerc Metab 2023 Aug 30:1-8.
https://doi.org/10.1123/ijsnem.2023-0029
