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Effects of Exercise With or Without Blueberries on Cardiovascular Risk Markers

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01274078
Recruitment Status : Completed
First Posted : January 11, 2011
Last Update Posted : July 27, 2012
Information provided by (Responsible Party):
Fredrik H Nystrom, University Hospital, Linkoeping

Brief Summary:
About 32 healthy subjects are subjected to 4 weeks of exercise, 4 weeks of washout and 4 weeks of sedentary life style, randomization decides whether they start with exercise or with being "couch potatoes". All participants are also randomized to also consume 150 g of blueberries on exercise days or not. The exercise is constituted of 5 km running 5 days a week during the 4 week period. The exercise period and the "couch" period are started and ended with a 5 km run at maximal speed and the fasting blood samples for cardiovascular risk factors are measured before and after this run, ie 8 times in total.

Condition or disease Intervention/treatment
Risk Factors Cardiovascular Disease Inflammation Exercise Sedentary Life Biological: Blueberries

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 32 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: Effects of Exercise With or Without Blueberries on Cardiovascular Risk Markers
Study Start Date : July 2010
Primary Completion Date : December 2010
Study Completion Date : March 2011

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arm Intervention/treatment
No Intervention: conventional food
Regular eating habits during exercise period
Active Comparator: Blueberries
Intervention: Addition of blueberries (150g/day) to regular food during the exercise period on days with exercise
Biological: Blueberries
150 grams of frozen blueberries on the same day as exercise

Primary Outcome Measures :
  1. markers for cardiovascular disease [ Time Frame: 3 months ]
    Insulin levels, glucose levels, lipids, hs-CRP, troponin T

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • healthy subjects

Exclusion Criteria:

  • significant disease and disabilities that hinder running

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01274078

Linkoeping, Sweden
Sponsors and Collaborators
University Hospital, Linkoeping

Responsible Party: Fredrik H Nystrom, MD professor, University Hospital, Linkoeping
ClinicalTrials.gov Identifier: NCT01274078     History of Changes
Other Study ID Numbers: FHN_exc_blueberries
First Posted: January 11, 2011    Key Record Dates
Last Update Posted: July 27, 2012
Last Verified: July 2012

Keywords provided by Fredrik H Nystrom, University Hospital, Linkoeping:

Additional relevant MeSH terms:
Cardiovascular Diseases
Pathologic Processes