{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T05:16:18Z","timestamp":1794287778949,"version":"4.9.0"},"reference-count":51,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,12,28]],"date-time":"2025-12-28T00:00:00Z","timestamp":1766880000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Low back pain (LBP) is one of the most frequent complications during pregnancy, with a high and variable incidence. LBP has been associated with physical inactivity, but it has not been evaluated exclusively in physically active (PA) pregnant women. This study aimed T to estimate the incidence of LBP in PA pregnant women and describe its clinical, functional, emotional, and occupational impact. Materials and Methods: A prospective cohort of 147 women with PA pregnancies was recruited between gestational weeks 11 and 13+6. Most (92.5%) hold a university degree. All received standardized informational intervention based on international recommendations on PA during pregnancy and LBP prevention. Data were collected through an in-person interview in the first trimester and a postpartum follow-up phone interview. PA was assessed using the International Physical Activity Questionnaire (IPAQ, short version), and LBP intensity was evaluated using the Visual Analog Scale (VAS). Results: LBP occurred in 64.6% of participants, despite maintaining regular PA. Pain intensity was higher in standing position (VAS = 4.9) and lower in lateral decubitus (VAS = 2.7). More than half (55.8%) did not seek medical consultation. LBP was associated with functional limitations (work, sleep, walking), emotional distress (52.6%), and work leave (30.5%; mean 9.4 weeks). In the multivariable logistic regression analysis, standing occupational position showed a borderline association with LBP (OR = 2.14; 95% CI: 1.00\u20134.55; p = 0.047), while a history of LBP in a previous pregnancy showed a statistically significant association (OR = 2.89; 95% CI: 1.12\u20137.48; p = 0.029). Higher PA levels during pregnancy were associated with slightly lower odds of LBP (OR = 0.91 per 500 MET\u00b7min\/week; 95% CI: 0.83\u20130.99; p = 0.032), although the magnitude of this association was small. Conclusions: LBP showed a high incidence even among PA and highly educated pregnant women. More than half of the women did not seek medical consultation, suggesting potential under-recognition of LBP. Standing occupational position and a previous pregnancy-related LBP were identified as independent risk factors associated with LBP in the multivariable model. Higher PA levels were inversely associated with LBP.<\/jats:p>","DOI":"10.3390\/medicina62010061","type":"journal-article","created":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T07:52:59Z","timestamp":1766994779000},"page":"61","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Incidence, Clinical Characteristics, and Underreporting of Low Back Pain in Physically Active Pregnant Women: Prospective Cohort Study"],"prefix":"10.3390","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4179-1227","authenticated-orcid":false,"given":"Luz M.","family":"Gallo-Gal\u00e1n","sequence":"first","affiliation":[{"name":"Ginefiv, 28703 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 L.","family":"Gallo-Vallejo","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Granada,18016 Granada, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6280-9153","authenticated-orcid":false,"given":"Juan","family":"Mozas-Moreno","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Granada,18016 Granada, Spain"},{"name":"Service of Obstetrics and Gynecology, Virgen de las Nieves University Hospital, 18014 Granada, Spain"},{"name":"CIBER Epidemiolog\u00eda y Salud P\u00fablica (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28019 Madrid, Spain"},{"name":"Instituto de Investigaci\u00f3n Biosanitaria de Granada (ibs.GRANADA), 18014 Granada, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"E100","DOI":"10.1097\/01.brs.0000254123.26649.6e","article-title":"Pregnancy related pelvic girdle pain and low back pain in an Iranian population","volume":"32","author":"Mousavi","year":"2007","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"395","DOI":"10.4103\/aer.AER_196_18","article-title":"Pregnancy-induced low back pain in indian women: Prevalence, risk factors, and correlation with serum calcium levels","volume":"13","author":"Saxena","year":"2019","journal-title":"Anesth. 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