The University of Auckland
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HVN1902 Metadata Record - Effects of a blackcurrant powder blend on repeated high-intensity cycling performance, attention and lung function under pollution exposure in highly trained male cyclists

posted on 2024-01-16, 03:08 authored by Andrea BraakhuisAndrea Braakhuis, Lillian MortonLillian Morton

This metadata record and it's attached files make statements about the kinds of data collected as part of this research, and set out policies for governance of that data, now and in the future.

Description: Exposure to ground-level ozone impairs lung function and induces systemic inflammation. Outdoor exercise is advocated for both its physical and mental health benefits, yet exercising in air pollution induces an array of pathophysiological responses and shown to be related to cognitive decline. Blackcurrants contain high levels of polyphenols that may mitigate the damaging effects of ozone on lung inflammation, and positively influence mood and cognition. The exercising athlete is more susceptible to the influence of air pollution due to increased ventilation, and breathing velocity transporting pollutants further into the respiratory tract. The objective of this study is to see if 7 day supplementation of blackcurrant powder reduces respiratory symptoms and lung inflammation, and assists exercise performance. In addition to this, the effects of supplementation on cognition and serum BDNF will be examined.



University of Auckland

Temporal coverage: start


HVN Project / Programme Name


Data access requirements

No individual participant data will be made available. Data can be requested upon request by contacting the principal investigator. In the interest of maintaining subject privacy, individual data will not be available.

Principal investigator organisation

University of Auckland

Collaborating researchers and affiliations

Principal Investigator: PhD Supervisor - Dr Andrea Braakhuis, Department of Nutrition, University of Auckland, Auckland PhD Candidate - Lillian Morton, Faculty of Health and Medical Sciences, University of Auckland, Auckland

Data description

Outcomes of the Study and associated data Primary outcomes: - Cycling performance time in a 4km time trial - Fraction expired Nitric Oxide (FeNO) - Respiratory function (FVC, FEV1) Associated data: 4km cycling time trial time, FeNO, FVC and FEV1 Secondary outcomes: - Serum concentration of brain derived neurotropin factor (BDNF) - Plasma cytokines (IL-6, IL-10, TNF-α) - Skeletal muscle oxygenation (SmO2 %) - Executive function measured by the Stroop test. - Serial subtraction tasks (correct responses, speed of responses, total errors) - Mean power (watts) Associated data: BNDF, plasma IL-6, IL-10, TNF-α, SmO2, Stroop test, serial subtraction task, mean power

Principal investigator contact email

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