How Does Iron Supplementation Affect Training and Performance in Female Collegiate Rowers? - Full Text View

Purpose

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 Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, 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:

MedlinePlus related topics: Anemia Iron

Drug Information available for: Ferrous sulfate Ferrous sulfate heptahydrate Sulfate ion

U.S. FDA Resources

Further study details as provided by Cornell University:

Primary Outcome Measures:

Markers of iron status [ Time Frame: 6 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

Physical performance outcomes [ Time Frame: 6 weeks ] [ Designated as safety issue: No ]


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

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Eligibility


Ages Eligible for Study:	18 Years to 30 Years
Genders Eligible for Study:	Female
Accepts Healthy Volunteers:	Yes

Criteria

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

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01383798

Locations


United States, New York
Human Metabolic Research Unit, MVR Hall, Cornell University
Ithaca, New York, United States, 14853

Sponsors and Collaborators

Cornell University

Investigators


Principal Investigator:	Jere D. Haas, PhD	Cornell University
Study Director:	Diane M. DellaValle, PhD	Cornell University

More Information

Publications:

DellaValle DM, Haas JD. Impact of iron depletion without anemia on performance in trained endurance athletes at the beginning of a training season: a study of female collegiate rowers. Int J Sport Nutr Exerc Metab. 2011 Dec;21(6):501-6.

Dellavalle DM, Haas JD. Iron status is associated with endurance performance and training in female rowers. Med Sci Sports Exerc. 2012 Aug;44(8):1552-9. doi: 10.1249/MSS.0b013e3182517ceb.

DellaValle DM, Haas JD. Iron supplementation improves energetic efficiency in iron-depleted female rowers. Med Sci Sports Exerc. 2014 Jun;46(6):1204-15. doi: 10.1249/MSS.0000000000000208.


Responsible Party:	Cornell University
ClinicalTrials.gov Identifier:	NCT01383798 History of Changes
Other Study ID Numbers:	OSP 57149
Study First Received:	June 27, 2011
Last Updated:	March 13, 2014
Health Authority:	United States: Institutional Review Board

Keywords provided by Cornell University:


iron deficiency, physical performance, female athletes

Additional relevant MeSH terms:


Anemia, Iron-Deficiency Anemia Anemia, Hypochromic	Hematologic Diseases Iron Metabolism Disorders Metabolic Diseases

ClinicalTrials.gov processed this record on March 03, 2015