Effect of a High Calcium Breakfast on Exercise Metabolism and Appetite

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. Identifier: NCT01358591
Recruitment Status : Completed
First Posted : May 23, 2011
Last Update Posted : June 5, 2012
Information provided by (Responsible Party):
Javier Gonzalez, Northumbria University

Brief Summary:
The purpose of this study is to assess the effect of a high calcium breakfast on substrate metabolism during exercise and appetite throughout the day.

Condition or disease Intervention/treatment Phase
Exercise Fat Oxidation Dietary Supplement: High calcium milk Dietary Supplement: Control Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 9 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Basic Science
Study Start Date : May 2011
Actual Primary Completion Date : November 2011
Actual Study Completion Date : November 2011

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Sham Comparator: Control Breakfast
Normal calcium breakfast.
Dietary Supplement: Control
Regular Milk

Experimental: High calcium breakfast
High calcium breakfast.
Dietary Supplement: High calcium milk
High calcium milk (9 mg/kgBM)

Primary Outcome Measures :
  1. Total fat oxidised during 60 min of exercise (g). [ Time Frame: 1 hour ]
    Assessed by indirect calorimetry

Secondary Outcome Measures :
  1. Blood glucose concentration [ Time Frame: 2 hour ]
    2 h incremental area under the curve for blood glucose following breakfast consumption

  2. Serum Insulin Concentration [ Time Frame: 2 hour ]
    2 h area under the curve for serum insulin following breakfast consumption

  3. Subjective appetite ratings [ Time Frame: 3 hour ]
    Subjective ratings of appetite assessed by visual analogue scales.

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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male
  • Aged 18-45 years
  • Physically active - able to run continuously for 1 h.

Exclusion Criteria:

  • Smokers
  • Food Allergies
  • Metabolic Disorders
  • Consuming herbal/dietary supplements
  • Gastric Problems

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 identifier (NCT number): NCT01358591

United Kingdom
Northumbria University
Newcastle Upon Tyne, Tyne and Wear, United Kingdom, NE1 8ST
Sponsors and Collaborators
Northumbria University

Responsible Party: Javier Gonzalez, PhD Student, Northumbria University Identifier: NCT01358591     History of Changes
Other Study ID Numbers: 32AN1
First Posted: May 23, 2011    Key Record Dates
Last Update Posted: June 5, 2012
Last Verified: June 2012

Additional relevant MeSH terms:
Calcium, Dietary
Calcium Carbonate
Bone Density Conservation Agents
Physiological Effects of Drugs
Molecular Mechanisms of Pharmacological Action
Gastrointestinal Agents