This study will employ a randomised, double-blind, placebo-controlled, independent groups experimental design. Submaximal, maximal and 5 km time trial running performance will be assessed before and after supplementation with haskap berry or a placebo.
Participants will consume haskap berry powder or an isocaloric placebo for 7 days. They will be required to run on a treadmill before and after supplementation to asses the influence on the intervention on aerobic performance parameters. Other performance parameters such as blood lactate, heart rate, ratings of perceived exertion and respiratory variables will also be monitored throughout the various elements of the exercise trials.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
30
Northumbria University
Newcastle upon Tyne, United Kingdom
5km time trial
time to complete the trial (seconds)
Time frame: Change from baseline at 7 days
V̇O2peak test
time to exhaustion (seconds)
Time frame: Change from baseline at 7 days
Blood lactate response during submaximal tests, maximal and time trial
lactate (mmol/L)
Time frame: Change from baseline at 7 days
rating of perceived exertion during submaximal tests, maximal and time trial
RPE (/20)
Time frame: Change from baseline at 7 days
heart rate during submaximal tests, maximal and time trial
(BPM)
Time frame: Change from baseline at 7 days
VO2 during submaximal tests, maximal tests
(oxygen uptake - relative ml/kg/min and absolute l/min)
Time frame: Change from baseline at 7 days
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