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How Does Iron Supplementation Affect Training and Performance in Female Collegiate Rowers?

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: NCT01383798
Recruitment Status : Completed
First Posted : June 28, 2011
Last Update Posted : March 14, 2014
Information provided by (Responsible Party):
Cornell University

Brief Summary:
The specific aims of the current study were: 1) To determine the prevalence of IDNA in a sample of female rowers at the beginning of a training season; 2) To determine how IDNA affects endurance training and performance at the beginning of a training season; 3) To determine how iron supplementation affects iron status, training and performance in IDNA female collegiate rowers. The researchers hypothesized that IDNA affects endurance performance in female collegiate rowers both in and outside of the laboratory, and that iron supplementation of IDNA rowers will improve iron status, and consequently, training quality via increased energetic efficiency.

Condition or disease Intervention/treatment Phase
Iron Deficiency (Without Anemia) Dietary Supplement: Placebo Dietary Supplement: Ferrous sulfate Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 40 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Outcomes Assessor)
Primary Purpose: Basic Science
Official Title: How Does Iron Deficiency Without Anemia (IDNA) Affect Endurance Training In Female Collegiate Endurance Athletes?
Study Start Date : August 2008
Actual Primary Completion Date : December 2009
Actual Study Completion Date : December 2009

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Anemia Iron

Arm Intervention/treatment
Placebo Comparator: Placebo
Red capsule (50 mg) lactose
Dietary Supplement: Placebo
100 mg lactose per day for 6 weeks

Experimental: Ferrous sulfate Dietary Supplement: Ferrous sulfate
100 mg per day of ferrous sulfate for 6 weeks

Primary Outcome Measures :
  1. Markers of iron status [ Time Frame: 6 weeks ]

Secondary Outcome Measures :
  1. Physical performance outcomes [ Time Frame: 6 weeks ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 30 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • non-smoking
  • current member of college/university rowing team

Exclusion Criteria:

  • acute or chronic injury or illness at time of screening
  • physician-diagnosed asthma, musculoskeletal problems, or eating disorders
  • pregnant or lactating
  • use of steroids or other performance-enhancing substances

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): NCT01383798

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United States, New York
Human Metabolic Research Unit, MVR Hall, Cornell University
Ithaca, New York, United States, 14853
Sponsors and Collaborators
Cornell University
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Principal Investigator: Jere D. Haas, PhD Cornell University
Study Director: Diane M. DellaValle, PhD Cornell University
Publications of Results:
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Responsible Party: Cornell University Identifier: NCT01383798    
Other Study ID Numbers: OSP 57149
First Posted: June 28, 2011    Key Record Dates
Last Update Posted: March 14, 2014
Last Verified: March 2014
Keywords provided by Cornell University:
iron deficiency, physical performance, female athletes
Additional relevant MeSH terms:
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Anemia, Iron-Deficiency
Hematologic Diseases
Anemia, Hypochromic
Iron Metabolism Disorders
Metabolic Diseases