{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,20]],"date-time":"2025-07-20T04:05:48Z","timestamp":1752984348704,"version":"3.37.3"},"reference-count":45,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2020,12,14]],"date-time":"2020-12-14T00:00:00Z","timestamp":1607904000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100009633","name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","doi-asserted-by":"publisher","award":["R01HD064958"],"award-info":[{"award-number":["R01HD064958"]}],"id":[{"id":"10.13039\/100009633","id-type":"DOI","asserted-by":"publisher"}]},{"name":"United States Department of Agriculture, Agricultural Research Service","award":["3062-51000-51- 00D"],"award-info":[{"award-number":["3062-51000-51- 00D"]}]},{"DOI":"10.13039\/100000025","name":"National Institute of Mental Health","doi-asserted-by":"publisher","award":["T32MH082761"],"award-info":[{"award-number":["T32MH082761"]}],"id":[{"id":"10.13039\/100000025","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,4,16]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>\u2002<\/jats:title>\n                  <jats:p>Pediatric obesity confers increased risk for a host of negative psychological and physical health consequences and is reliably linked to low levels of physical activity. Affective antecedents and consequences of physical activity are thought to be important for the development and maintenance of such behavior, though research examining these associations in youth across the weight spectrum remains limited.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Objective\u2003<\/jats:title>\n                  <jats:p>This study examined bi-directional associations between affect and physical activity (i.e., moderate-to-vigorous physical activity [MVPA] and total activity counts), and the extent to which weight (body mass index z-score [z-BMI]) moderated these associations.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods\u2003<\/jats:title>\n                  <jats:p>Participants were drawn from a prior study of siblings (N\u2009=\u200977; mean age\u2009=\u200915.4\u2009\u00b1\u20091.4\u2009years) discordant for weight status (39 nonoverweight siblings, 38 siblings with overweight\/obesity) who completed ecological momentary assessment (EMA) with accelerometer-assessed physical activity.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results\u2003<\/jats:title>\n                  <jats:p>Generalized linear mixed models indicated z-BMI moderated trait-level and momentary associations. When adolescents with higher z-BMI reported momentary negative affect, they evidenced less MVPA within the next hour. Across the sample, greater overall activity was associated with lower negative affect. However, at the momentary level, when adolescents with higher (but not lower) z-BMI evidenced greater activity, they reported decreases in negative affect.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions\u2003<\/jats:title>\n                  <jats:p>Findings indicate affective experiences surrounding physical activity differ according to z-BMI. Specifically, momentary negative affect may impede momentary MVPA among youth with higher z-BMI. Further research is warranted to elucidate factors influencing these momentary associations and the extent to which these momentary associations prospectively predict weight change.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/jpepsy\/jsaa121","type":"journal-article","created":{"date-parts":[[2020,11,20]],"date-time":"2020-11-20T14:43:14Z","timestamp":1605883394000},"page":"443-453","source":"Crossref","is-referenced-by-count":6,"title":["Bi-Directional Associations Between Real-Time Affect and Physical Activity in Weight-Discordant Siblings"],"prefix":"10.1093","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6555-0060","authenticated-orcid":false,"given":"Kathryn E","family":"Smith","sequence":"first","affiliation":[{"name":"Department of Psychiatry and Behavioral Sciences, University of Southern California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tyler B","family":"Mason","sequence":"additional","affiliation":[{"name":"Department of Preventive Medicine, University of Southern California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shannon M","family":"O\u2019Connor","sequence":"additional","affiliation":[{"name":"Department of Psychology, Montclair State University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shirlene","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Preventive Medicine, University of Southern California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eldin","family":"Dzubur","sequence":"additional","affiliation":[{"name":"Livongo Health"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ross D","family":"Crosby","sequence":"additional","affiliation":[{"name":"Sanford Center for Bio-behavioral Research, Sanford Health"},{"name":"Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen A","family":"Wonderlich","sequence":"additional","affiliation":[{"name":"Sanford Center for Bio-behavioral Research, Sanford Health"},{"name":"Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah-Jeanne","family":"Salvy","sequence":"additional","affiliation":[{"name":"Research Center for Health Equity, Cedars-Sinai Medical Center"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Denise M","family":"Feda","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Environmental Health, University at Buffalo, The State University of New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James N","family":"Roemmich","sequence":"additional","affiliation":[{"name":"Agricultural Research Service, United States Department of Agriculture, Grand Forks Human Nutrition Research Center"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2020,12,14]]},"reference":[{"issue":"1","key":"2021042007571216300_jsaa121-B1","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1007\/s10865-019-00062-z","article-title":"Everyday stress components and physical activity: examining reactivity, recovery and pileup","volume":"43","author":"Almeida","year":"2020","journal-title":"Journal of Behavioral Medicine"},{"key":"2021042007571216300_jsaa121-B3","doi-asserted-by":"crossref","first-page":"2211","DOI":"10.1249\/MSS.0b013e3181e1fba9","article-title":"Physical activity in US youth: impact of race\/ethnicity, age, gender, & weight status","volume":"42","author":"Belcher","year":"2010","journal-title":"Medicine and Science in Sports and Exercise"},{"key":"2021042007571216300_jsaa121-B4","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.bodyim.2016.04.008","article-title":"Do parents or siblings engage in more negative weight-based talk with children and what does it sound like? 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