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Previous research suggests that physical activity and exercise (PA\/exercise) might have considerable merit for weight reduction via impacts on mood and other psychosocial correlates of controlled eating. Although as few as 3 bouts\/week of low-moderate intensity PA\/exercise are associated with improved mood\u2014with no dose\u2013response effect beyond that frequency\u2014it is unknown if mood improvements may be leveraged when participants already complete \u2a7e3 bouts\/week by treatment start.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives:<\/jats:title>\n                    <jats:p>The present research addressed gaps in the available PA\/exercise\u2013psychosocial change\u2013weight management research.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design:<\/jats:title>\n                    <jats:p>This study combined group contrasts with mediation analyses.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      Women participating in a community-based cognitive-behavioral obesity treatment emphasizing the increase of PA\/exercise and exercise-related self-regulation and self-efficacy (\n                      <jats:italic toggle=\"yes\">N<\/jats:italic>\n                      \u2009=\u200999) were divided for separate analyses into groupings of &lt;3 bouts\/week, and \u2a7e3 bouts\/week, of light (e.g., easy walking) and moderate (e.g., fast walking) PA\/exercise regularly completed prior to treatment start. The participants were assessed on psychosocial and PA\/exercise changes from baseline to month 3.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Reductions in total mood disturbance (TMD), depression, and anxiety scores were overall significant, with no significant difference by exercise-frequency grouping. PA\/exercise increases were significantly greater in the &lt;3 bouts\/week groupings. Change in self-regulatory skills usage mediated relations between groupings and changes in TMD, depression, and anxiety. In subsequent serial mediation models, significant paths from grouping\u2009\u2192\u2009self-regulation change\u2009\u2192\u2009self-efficacy change\u2009\u2192\u2009TMD and depression changes were found.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Whether or not \u2a7e3 bouts\/week of PA\/exercise are completed at intervention start, TMD, depression, and anxiety may be reduced through treatment foci on increasing PA\/exercise, self-regulation, and self-efficacy. Findings might be useful for informing scalable obesity treatments.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/17455057251414932","type":"journal-article","created":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T11:38:19Z","timestamp":1769427499000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Reductions in negative mood in minimally versus moderately active women at behavioral obesity intervention start: Assessing floor effects and internal mechanisms of change to inform future treatments"],"prefix":"10.1177","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5230-6365","authenticated-orcid":false,"given":"James J.","family":"Annesi","sequence":"first","affiliation":[{"name":"California State University Monterey Bay, Seaside, CA, USA"},{"name":"Mind Body Wellbeing, LLC, Manahawkin, NJ, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maliheh","family":"Bakhshi","sequence":"additional","affiliation":[{"name":"California State University Monterey Bay, Seaside, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia G.","family":"Sevene","sequence":"additional","affiliation":[{"name":"California State University Monterey Bay, Seaside, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,1,26]]},"reference":[{"issue":"158","key":"e_1_3_3_2_2","article-title":"National Health and Nutrition Examination Survey 2017-March 2020 prepandemic data files-development of files and prevalence estimates for selected health outcomes","volume":"2021","author":"Stierman B","year":"2021","unstructured":"Stierman B, Afful J, Carroll MD, et al. 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