Haskap and Endurance Running Performance

Overview

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.

Full Title of Study: “The Influence of Haskap Berry on Exercise Performance”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: Triple (Participant, Investigator, Outcomes Assessor)
  • Study Primary Completion Date: November 8, 2021

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 Supplement: Haskapa
    • Haskapa Ltd, Oxford, UK
  • Dietary Supplement: Placebo
    • isocaloric to the haskap powder

Arms, Groups and Cohorts

  • Active Comparator: Haskap berry
    • A commercially available haskap berry freeze-dried) powder
  • Placebo Comparator: Placebo
    • Black cherry KoolAid (Kraft Foods, USA) with added maltodextrin to match carbohydrate and calorie content

Clinical Trial Outcome Measures

Primary Measures

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

Secondary Measures

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

Participating in This Clinical Trial

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

Gender Eligibility: Male

Minimum Age: 18 Years

Maximum Age: 45 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Northumbria University
  • Collaborator
    • Mibelle Group Biochemistry
  • Provider of Information About this Clinical Study
    • Sponsor

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