{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T12:52:52Z","timestamp":1786971172805,"version":"build-2736575974"},"reference-count":39,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2021,4,30]],"date-time":"2021-04-30T00:00:00Z","timestamp":1619740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/100000054","name":"National Cancer Institute","doi-asserted-by":"publisher","award":["UL1TR001855"],"award-info":[{"award-number":["UL1TR001855"]}],"id":[{"id":"10.13039\/100000054","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000054","name":"National Cancer Institute","doi-asserted-by":"publisher","award":["UL1TR000130"],"award-info":[{"award-number":["UL1TR000130"]}],"id":[{"id":"10.13039\/100000054","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006108","name":"National Center for Advancing Translational Sciences","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100006108","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,10,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Study Objectives<\/jats:title><jats:p>Poor sleep quality affects nearly one-third of breast cancer survivors and is associated with insulin resistance. The purpose of this secondary analysis was to examine the effects of a 16-week exercise intervention on patient-reported sleep quality among breast cancer survivors and assess whether changes in patient-reported sleep quality were associated with cardiometabolic biomarkers. We explored Hispanic ethnicity as a moderator of the effects of exercise on patient-reported sleep quality.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Breast cancer survivors who were overweight or obese were randomized to exercise (n = 50) or usual care (n = 50). The 16-week intervention included aerobic and resistance exercise. Patient-reported sleep quality (Pittsburgh Sleep Quality Index [PSQI]) and biomarkers of cardiometabolic health were assessed at baseline and post-intervention. Within- and between-group differences were assessed using general linear models repeated-measures analyses of variance and mixed-model repeated-measure analysis, respectively. Associations between changes in PSQI and cardiometabolic biomarkers were computed using Pearson correlations. Linear mixed-models were used to evaluate effect modification by ethnicity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Participants were 52 \u00b1 10.4 years old, and over half were of Hispanic ethnicity. As compared to usual care, PSQI global scores improved significantly in the exercise group (mean between-group difference \u22122.2; 95% CI \u22123.2 to \u22120.6). Change in PSQI was inversely associated with changes in all cardiometabolic biomarkers (p &amp;lt; 0.01) among the exercise group. Ethnicity was found to moderate the effects of exercise training on global sleep quality (p &amp;lt; 0.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>An aerobic and resistance exercise intervention effectively improved patient-reported sleep quality in breast cancer survivors. Hispanic ethnicity as a moderator showed greater improvement in patient-reported sleep indicating Hispanic versus non-Hispanic breast cancer survivors may derive larger sleep benefits.<\/jats:p><\/jats:sec><jats:sec><jats:title>Clinical Trail Information<\/jats:title><jats:p>NCT01140282.<\/jats:p><\/jats:sec>","DOI":"10.1093\/sleep\/zsab111","type":"journal-article","created":{"date-parts":[[2021,4,30]],"date-time":"2021-04-30T15:39:05Z","timestamp":1619797145000},"source":"Crossref","is-referenced-by-count":28,"title":["Aerobic and resistance exercise improve patient-reported sleep quality and is associated with cardiometabolic biomarkers in Hispanic and non-Hispanic breast cancer survivors who are overweight or obese: results from a secondary analysis"],"prefix":"10.1093","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9093-7259","authenticated-orcid":false,"given":"Christina M","family":"Dieli-Conwright","sequence":"first","affiliation":[{"name":"Division of 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USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary K","family":"Norris","sequence":"additional","affiliation":[{"name":"Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School , Boston, MA , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank S","family":"Fox","sequence":"additional","affiliation":[{"name":"Department of Medicine, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas A","family":"Buchanan","sequence":"additional","affiliation":[{"name":"Department of Medicine, Keck School of Medicine, University of Southern California , Los Angeles, CA , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Darcy","family":"Spicer","sequence":"additional","affiliation":[{"name":"Department of Medicine, Keck School of Medicine, University of Southern California , Los 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