Haskap and Endurance Running Performance

Not Applicable

Completed

• Conditions: Exercise Performance
• Interventions: Dietary Supplement: Haskapa; Dietary Supplement: Placebo

• Registration Number: NCT04837898
• Lead Sponsor: Northumbria University

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.

Study Timeline

• Status Verified: 2021-04
• Study First Submitted: 2021-04-06
• Study First Submitted QC: 2021-04-06
• Study First Posted: 2021-04-08
• Study Start: 2021-04-12
• Primary Completion: 2021-11-08
• Study Completion: 2021-12-08
• Last Update Submitted: 2022-04-05
• Last Update Posted: 2022-04-13

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 30

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Haskap berry	Haskapa	A commercially available haskap berry freeze-dried) powder
Placebo	Placebo	Black cherry KoolAid (Kraft Foods, USA) with added maltodextrin to match carbohydrate and calorie content

Primary Outcome Measures

Name	Time	Method
V̇O2peak test	Change from baseline at 7 days	time to exhaustion (seconds)
5km time trial	Change from baseline at 7 days	time to complete the trial (seconds)

Secondary Outcome Measures

Name	Time	Method
VO2 during submaximal tests, maximal tests	Change from baseline at 7 days	(oxygen uptake - relative ml/kg/min and absolute l/min)
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)

Trial Locations

Locations (1)

Northumbria University; 🇬🇧 Newcastle Upon Tyne, United Kingdom