{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T18:19:06Z","timestamp":1780510746565,"version":"3.54.1"},"reference-count":10,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"Cancer Related Health Disparities Training Program","award":["5T32CA163184-14"],"award-info":[{"award-number":["5T32CA163184-14"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Am J Health Promot"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Examined how moderate-to-vigorous physical activity (MVPA) and weight status during physical education (PE) class was related to peer MVPA and weight status.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Data collected during the first and last weeks of a semester-long PE class.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>Houston, Texas charter school.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>Adolescents (n = 156; 13.51 \u00b1 1.45 years old; 52.6% female; 85.4% Hispanic, 14.1% African American, 0.5% Asian) nominated up to 3 female and 3 male students they felt closest to in PE.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Measures<\/jats:title>\n                    <jats:p>MVPA during PE was assessed by heart rate throughout the semester. Body mass index (BMI) z-score was calculated from height and weight measured at the beginning and end of the semester.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Analysis<\/jats:title>\n                    <jats:p>Exponential random graph models explored friendship existence, formation, and maintenance in these networks. Separable temporal exponential random graph models examined how MVPA impacted friendships forming or maintaining over the semester.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Students with higher MVPA were more likely to receive a new nomination from a student throughout the semester (E = 0.007,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; .03), but not to send a new nomination themselves. Students with higher BMI z-scores were significantly less likely to send a nomination at baseline (E = \u22120.11,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .04); however, this effect was not significant at semester\u2019s end.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>MVPA opportunities during PE may be a mechanism for youth to establish friendships, making PE important for adolescent social and physical health. Larger scale research is warranted.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/08901171251404905","type":"journal-article","created":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T11:57:35Z","timestamp":1764158255000},"page":"735-738","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Peer Similarity in Physical Activity and Weight Status During Physical Education Class"],"prefix":"10.1177","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2062-2133","authenticated-orcid":false,"given":"Tyler M.","family":"Dregney","sequence":"first","affiliation":[{"name":"University of Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7886-4456","authenticated-orcid":false,"given":"Tyler","family":"Prochnow","sequence":"additional","affiliation":[{"name":"Texas A&M University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8536-0085","authenticated-orcid":false,"given":"Joseph S.","family":"Lightner","sequence":"additional","affiliation":[{"name":"University of Missouri-Kansas City"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Craig A.","family":"Johnston","sequence":"additional","affiliation":[{"name":"University of Houston"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7181-8315","authenticated-orcid":false,"given":"Katherine R.","family":"Hendel","sequence":"additional","affiliation":[{"name":"University of Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,11,26]]},"reference":[{"key":"e_1_3_8_2_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2018.14854"},{"key":"e_1_3_8_3_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12889-019-7001-0"},{"key":"e_1_3_8_4_2","doi-asserted-by":"publisher","DOI":"10.1093\/jpepsy\/jst086"},{"key":"e_1_3_8_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41366-021-00940-0"},{"key":"e_1_3_8_6_2","doi-asserted-by":"publisher","DOI":"10.1037\/cpp0000061"},{"key":"e_1_3_8_7_2","doi-asserted-by":"publisher","DOI":"10.1080\/17477160701305864"},{"key":"e_1_3_8_8_2","volume-title":"CDC Growth Charts: United States","author":"Kuczmarski RJ","year":"2000","unstructured":"Kuczmarski RJ. 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