Exercise Performance
Conditions
Keywords
berry, running, time trial
Brief summary
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.
Detailed description
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.
Interventions
DIETARY_SUPPLEMENTHaskapa
Haskapa Ltd, Oxford, UK
DIETARY_SUPPLEMENTPlacebo
isocaloric to the haskap powder
Sponsors
Mibelle Group Biochemistry
Haskapa Ltd
Northumbria University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Masking description
Supplement will be pre-weighed by an individual (independent of the study) and provided to participants in sealed packets
Eligibility
Sex/Gender
MALE
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy non-smoking males * completed a 5 km run (in less than 25 minutes) within the 6 weeks prior to the study
Exclusion criteria
* female * allergies to fruit or dairy, currently taking any nutritional supplements (e.g. vitamins, antioxidant, herbal or sports enhancing supplements) or medication that might affect the study outcome * history of gastrointestinal, renal or cardiovascular disease
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 5km time trial | Change from baseline at 7 days | time to complete the trial (seconds) |
| V̇O2peak test | Change from baseline at 7 days | time to exhaustion (seconds) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Blood lactate response during submaximal tests, maximal and time trial | Change from baseline at 7 days | lactate (mmol/L) |
| rating of perceived exertion during submaximal tests, maximal and time trial | Change from baseline at 7 days | RPE (/20) |
| heart rate during submaximal tests, maximal and time trial | Change from baseline at 7 days | (BPM) |
| VO2 during submaximal tests, maximal tests | Change from baseline at 7 days | (oxygen uptake - relative ml/kg/min and absolute l/min) |
Countries
United Kingdom
Outcome results
None listed