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

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: June 28, 2011
Last Update Posted: March 14, 2014
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.
Information provided by (Responsible Party):
Cornell University
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 Intervention
Iron Deficiency (Without Anemia) Dietary Supplement: Placebo Dietary Supplement: Ferrous sulfate

Study Type: Interventional
Study Design: 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?

Resource links provided by NLM:

Further study details as provided by Cornell University:

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

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

Enrollment: 40
Study Start Date: August 2008
Study Completion Date: December 2009
Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
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

  Show Detailed Description


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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
  Contacts and Locations
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): NCT01383798

United States, New York
Human Metabolic Research Unit, MVR Hall, Cornell University
Ithaca, New York, United States, 14853
Sponsors and Collaborators
Cornell University
Principal Investigator: Jere D. Haas, PhD Cornell University
Study Director: Diane M. DellaValle, PhD Cornell University
  More Information

Responsible Party: Cornell University
ClinicalTrials.gov Identifier: NCT01383798     History of Changes
Other Study ID Numbers: OSP 57149
First Submitted: June 27, 2011
First Posted: June 28, 2011
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:
Anemia, Iron-Deficiency
Hematologic Diseases
Anemia, Hypochromic
Iron Metabolism Disorders
Metabolic Diseases