Infertility and physical activity: A cross-sectional study of women living in Yazd aged 20-49 yr, 2014-2015

Masoud Mirzaei, Mirzaei M, Ph. D, Namiranian N, Nasim Namiranian, Bagheri-Fahraji B, Behnam Bagheri-Fahraji, Gholami S, Somaye Gholami
International journal of reproductive biomedicine · 2020 · vol. 18(9) , pp. 795–803 · doi:10.18502/ijrm.v13i9.7673 · PMID:33062925 · PMC7521170
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This cross-sectional study of 2,611 women in Yazd found a significant association between infertility and lower physical activity levels, with over 90% of infertile participants exhibiting low or moderate activity.

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This cross-sectional study analyzed data from 2,611 women aged 20-49 in Yazd, Iran, to evaluate the association between physical activity levels and infertility prevalence. The results indicated that both low and high physical activity were significantly associated with increased odds of infertility compared to moderate activity, while age, BMI, and waist circumference remained significant confounding factors. The authors noted that while the mechanisms are not fully understood, intense exercise might disrupt ovulation, whereas moderate activity may improve ovarian function through insulin sensitivity. This paper is cited among other conditions, specifically mentioning endometriosis as a factor affecting infertility and citing meta-studies on how physical activity can reduce infertility risk in such contexts.

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Abstract

BACKGROUND: Changes in the state of energy balance owing to changes in physical activity (PA) may affect the reproductive system. OBJECTIVE: the aim of this study was to assess the association between PA and infertility of women living in Yazd 2014 - 2015. MATERIALS AND METHODS: The study method was analytical cross-sectional on the Yazd Health Study (YaHS) data which was conducted on 10,000 people. We studied 2,611 women (20 and 49 yrs old), living in Greater Yazd area. PA information was collected using a physical activity questionnaire (IPAQ) short form. The standardized instruments were used for anthropometrics measurement. RESULTS: Totally 135 cases of infertility were documented. The overall prevalence of infertility was 4.73% (95% CI: 3.94-5.59%). The median of PA scores (METs) in women was 746.66 and 25-75% interquartile range was 361.25-1277.25. The relationship according to the Chi-square test between infertility and PA, as categorized variables, was significant (p = 0.015). It showed over 90% of those who suffered from infertility had a low or moderate PA. CONCLUSION: The results of our study showed that there is a significant relationship between infertility and PA level in women living in Greater Yazd area. Also, women with infertility had lower activity levels, consistent with most previous studies.
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Our study reported that there is a significant relationship between infertility and PA level in women living in Yazd Greater Area. Also, women with infertility had lower activity levels, consistent with most previous studies. The level of PA was significantly related to age, level of education, and waist circumference.

Coi Statement

The authors declare no conflict of interest.

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