Haskap and Endurance Running Performance

Study Overview
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Brief Summary
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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
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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.

Official Title
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The Influence of Haskap Berry on Exercise Performance

Conditions
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Exercise Performance

Intervention / Treatment
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* Dietary Supplement: Haskapa
* Dietary Supplement: Placebo


Participation Criteria
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Eligibility Criteria
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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

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Haskap berry<br>A commercially available haskap berry freeze-dried) powder | Dietary Supplement: Haskapa<br>* Haskapa Ltd, Oxford, UK<br>|
| Placebo Comparator: Placebo<br>Black cherry KoolAid (Kraft Foods, USA) with added maltodextrin to match carbohydrate and calorie content | Dietary Supplement: Placebo<br>* isocaloric to the haskap powder<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 5km time trial | time to complete the trial (seconds) | Change from baseline at 7 days | 
| V̇O2peak test | time to exhaustion (seconds) | Change from baseline at 7 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Blood lactate response during submaximal tests, maximal and time trial | lactate (mmol/L) | Change from baseline at 7 days | 
| rating of perceived exertion during submaximal tests, maximal and time trial | RPE (/20) | Change from baseline at 7 days | 
| heart rate during submaximal tests, maximal and time trial | (BPM) | Change from baseline at 7 days | 
| VO2 during submaximal tests, maximal tests | (oxygen uptake - relative ml/kg/min and absolute l/min) | Change from baseline at 7 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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running, time trial, berry