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

NCT01383798 | Completed

• 1 other identifier: OSP 57149
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

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.

Conditions

Iron Deficiency (Without Anemia)

Keywords

iron deficiency, physical performance, female athletes

Outcome Measures

Primary Outcomes (1)

• Markers of iron status

  6 weeks

Secondary Outcomes (1)

• Physical performance outcomes

  6 weeks

Study Arms (2)

Placebo

PLACEBO COMPARATOR

Red capsule (50 mg) lactose

Dietary Supplement: Placebo

Ferrous sulfate

EXPERIMENTAL

Dietary Supplement: Ferrous sulfate

Interventions

Placebo DIETARY_SUPPLEMENT

100 mg lactose per day for 6 weeks

Placebo

Ferrous sulfate DIETARY_SUPPLEMENT

100 mg per day of ferrous sulfate for 6 weeks

Ferrous sulfate

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

• 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

Sponsors & Collaborators

• Cornell University: lead

Study Sites (1)

Human Metabolic Research Unit, MVR Hall, Cornell University

Ithaca, New York, 14853, United States

Location

Related Publications (3)

• 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. doi: 10.1123/ijsnem.21.6.501.

  PMID: 22089308 RESULT

• 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.

  PMID: 22382172 RESULT

• 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.

  PMID: 24195864 RESULT

MeSH Terms

Conditions

Iron Deficiencies

Interventions

ferrous sulfate

Condition Hierarchy (Ancestors)

Iron Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases

Study Officials

• Jere D. Haas, PhD

  Cornell University

  PRINCIPAL INVESTIGATOR

• Diane M. DellaValle, PhD

  Cornell University

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: June 27, 2011
• First Posted: June 28, 2011
• Study Start: August 1, 2008
• Primary Completion: December 1, 2009
• Study Completion: December 1, 2009
• Last Updated: March 14, 2014

Record last verified: 2014-03

Locations

US (1)