Cited by 36Exercise and Physiological ResponsesAntioxidant Activity and Oxidative StressPhytochemicals and Antioxidant Activities

Oxidative Stress in Female Athletes Using Combined Oral Contraceptives

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Cauci, Sabina, Buligan, Cinzia, Marangone, Micaela, Francescato, Maria Pia·2016·Sports Medicine - Open

Abstract

BACKGROUND: Oxidative stress in female athletes is understudied. We investigated oxidative stress in sportswomen of different disciplines according to combined oral contraceptive (OC) use and lifestyle/alimentary habits. METHODS: ) were analyzed; 48 % were volleyball players, 12.5 % soccer players, 10.4 % track-and-field sports, and followed by other disciplines' athletes. Oxidative stress was evaluated by free oxygen radical test (FORT) assessing blood hydroperoxides and free oxygen radical defense (FORD) assay evaluating antioxidant capacity in OC users (n = 42) compared to non-OC users. RESULTS: Elevated oxidative stress levels (≥310 FORT units) were found in 92.9 % of OC users and in 23.5 % of non-OC users (crude OR = 42, 95 % CI 12-149, p < 0.001; adjusted OR = 60, 95 % CI 11-322, p < 0.001). Continuous values of hydroperoxides were twofold higher in OC users versus non-OC users (median 484 versus 270 FORT units, p < 0.001) and were inversely related to FORD units in OC users (p = 0.01). Hydroperoxides were not associated with weekly hours of exercise. In OC users, lifestyle/alimentary habits were not correlated to hydroperoxides. In non-OC users only, hydroperoxide values were positively correlated with weight and BMI and inversely correlated with chocolate and fish consumption. CONCLUSIONS: The markedly elevated oxidative stress we revealed in OC-user athletes could be detrimental to physical activity and elevate cardiovascular risk (as thromboembolism). Further research is needed to extend our results, to clarify the biochemical pathways leading to increased hydroperoxides (mainly lipid peroxides) and reduced antioxidant defense, and to elucidate the potential effects on athletic performance. OC use should be considered when developing gender-focused strategies against oxidative stress.

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  • Increases in C-reactive protein levels through glucose tolerance testing of Olympic female athletes on COC have been observed, indicative of an upregulated inflammatory response.

    “increases in C-reactive protein levels, through glucose tolerance testing of Olympic female athletes on COC, have been observed, indicative of an upregulated inflammatory response [180]”

    From International society of sports nutrition position stand: nutritional concerns of the female athlete (2023) · cites this paper as [180]

    The Discussion (page unavailable) mentions OC effects on high-sensitivity C-reactive protein in female athletes and identifies it as a biomarker of inflammation. It does not report a CRP increase, glucose tolerance testing, or an Olympic-athlete sample; this study measured oxidative stress using hydroperoxide assays instead. (LLM, conf=0.80)

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Authors
Cauci, S., Buligan, C., Marangone, M., & Francescato, M. P.
Affiliations
University of Udine (IT)
Corresponding author
Cauci, Sabina
Venue
Sports Medicine - Open
Published
2016-09-21
Volume
2
Issue
1
Pages
40-40
ISSN
  • 2198-9761 (ISSN-L)
  • 2199-1170
OpenAlex
W2521750556
Cited by
36
References
56
Citations by year
2026: 7 · 2025: 3 · 2024: 2 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 4 · 2019: 2 · 2018: 2 · 2017: 2
FWCI
2.14
Type
journal article
Language
en
Open access
Locations
  • Sports Medicine - Open (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Research Information System (University of Udine) (submittedVersion, cc-by-nc-nd)
Funders
Udine University grants (2013-2015)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
Keywords
oxidative stress, female athletes, combined oral contraceptives, lipid peroxidation, hydroperoxides, antioxidant capacity, physical activity, lifestyle habits, cardiovascular risk, thromboembolism, athletic performance

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