Cited by 50Ovarian function and disordersDiabetes, Cardiovascular Risks, and LipoproteinsObesity, Physical Activity, Diet

Increased fibre and reduced trans fatty acid intake are primary predictors of metabolic improvement in overweight polycystic ovary syndrome—Substudy of randomized trial between diet, exercise and diet plus exercise for weight control

Nybacka, Åsa, Hellström, Per M., Hirschberg, Angelica L.·2017·Clinical Endocrinology

Abstract

Summary: Objective: Polycystic ovary syndrome (PCOS) is commonly affected by obesity. PCOS phenotypes are prone to increased waist/hip ratio, insulin resistance and dyslipidaemia. This substudy was undertaken to evaluate the effects of lifestyle interventions on metabolic biomarkers in overweight/obese PCOS women and the interventional effects of dietary components related to metabolic outcomes. Design: Randomized three‐arm parallel study. Patients: Fifty‐seven PCOS women body mass index (BMI >27 kg/m 2, age 18‐40) were randomly assigned to diet (D, n = 19), exercise (E, n = 19) or diet plus exercise (DE, n = 19) in three‐arm fashion over 16 weeks. The D group received nutritional counselling by a dietician to reduce their energy intake by at least 600 kcal/d. The E group received an ambulatory exercise regimen from a physiotherapist. The DE group had both interventions. Measurements: Self‐reported food intake over 4 days, exercise pedometers, BMI, waist/hip ratio, blood pressure, body composition and oral glucose tolerance test were performed before and at the end of intervention. Results: BMI, waist circumference and total cholesterol were significantly reduced in the D and DE groups, as well as low‐density lipoprotein and Homeostasis Model of Assessment index in the D group. In the E group, exercise was increased along with a decrease in BMI and waist circumference. The strongest predictor of reduced BMI was increased fibre intake (−0.44, P = .03), while a decrease in trans fatty acid intake predicted reduced insulinogenic index (0.44, P < .01). Conclusions: Nutritional counselling with dieting is clearly effective to improve metabolic disturbances in overweight/obese women with PCOS. Increased fibre and reduced trans fatty acid intake are primary predictors of metabolic improvement and weight control.

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Crossref · 10.1111/cen.13427

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Authors
Nybacka, Å., Hellström, P. M., & Hirschberg, A. L.
Affiliations
  • Karolinska University Hospital (SE)
  • Uppsala University (SE)
Corresponding author
Hellström, Per M.
Venue
Clinical Endocrinology
Publisher
Wiley
Published
2017-08-18
Volume
87
Issue
6
Pages
680-688
ISSN
  • 0300-0664 (ISSN-L)
  • 1365-2265
OpenAlex
W2739112346
Cited by
50
References
12
Citations by year
2026: 4 · 2025: 7 · 2024: 1 · 2023: 4 · 2022: 17 · 2021: 4 · 2020: 4 · 2019: 6 · 2018: 2 · 2017: 1
FWCI
4.13
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Stockholms Läns Landsting
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
Keywords
polycystic ovary syndrome, overweight, obesity, dietary fiber, trans fatty acids, insulin resistance, insulinogenic index, weight management, lifestyle intervention, nutrition counseling, physical activity, dyslipidemia, waist-to-hip ratio, metabolic biomarkers
MeSH terms
Adolescent, Adult, Dietary Fiber, Female, Humans, Polycystic Ovary Syndrome, Exercise, Absorptiometry, Photon, Trans Fatty Acids, Overweight, Young Adult

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