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Weekly trajectories of accelerometer-measured PA were identified by multivariate latent class mixed models using daily minutes of moderate-to-vigorous and light PA (MVPA, LPA). Survivors\u2019 characteristics related to different PA trajectories were assessed using a descriptive approach, and PA trajectories between survivors and controls were visually compared.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      We identified four PA trajectories among adolescents (\n                      <jats:italic>Low regular<\/jats:italic>\n                      ;\n                      <jats:italic>Medium, drop weekend<\/jats:italic>\n                      ;\n                      <jats:italic>Medium, peak Friday<\/jats:italic>\n                      ; and\n                      <jats:italic>Medium regular<\/jats:italic>\n                      ) and four among adult survivors (\n                      <jats:italic>Medium regular<\/jats:italic>\n                      ;\n                      <jats:italic>Medium, drop weekend<\/jats:italic>\n                      ;\n                      <jats:italic>Medium regular MVPA, high regular LPA<\/jats:italic>\n                      ; and\n                      <jats:italic>High, drop weekend<\/jats:italic>\n                      ). The main factors related to the different PA trajectories were sex, age at assessment, sleep, and (parental) education, whereas diagnosis seemed important in adolescent survivors only. In adolescents, trajectories were comparable between survivors and controls, while in adults, only three trajectories were comparable. The allocation to the different trajectories was more favorable in adolescent survivors (fewer in the\n                      <jats:italic>Low<\/jats:italic>\n                      trajectory) and adult survivors (no\n                      <jats:italic>Low regular MVPA<\/jats:italic>\n                      trajectory was identified in survivors) compared to controls.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Implications for Cancer Survivors<\/jats:title>\n                    <jats:p>Our findings show many different behavioral approaches to accumulate PA over a week. They highlight the need for targeted PA interventions in a subset of survivors (i.e., adolescent, female survivors of CNS tumors). Developing interventions to prevent PA drops on the weekend holds high potential.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s11764-026-02086-2","type":"journal-article","created":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T03:28:31Z","timestamp":1784863711000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Weekly physical activity trajectories in short- and long-term survivors of childhood cancer: the PACCS and SURfit studies"],"prefix":"10.1007","author":[{"given":"Mari","family":"Bratteteig","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"May","family":"Grydeland","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sigmund Alfred","family":"Anderssen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ellen","family":"Ruud","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ingrid Kristin","family":"Torsvik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lene","family":"Thorsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin Kaj","family":"Fridh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liisa","family":"J\u00e4rvel\u00e4","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miriam","family":"G\u00f6tte","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bj\u00f8rge Herman","family":"Hansen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simeon Joel","family":"Z\u00fcrcher","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susi","family":"Kriemler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Flavie","family":"Perrier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Corina Silvia","family":"Rueegg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,24]]},"reference":[{"issue":"1","key":"2086_CR1","doi-asserted-by":"publisher","first-page":"23","DOI":"10.1097\/MOP.0b013e328013c89e","volume":"19","author":"JA Alvarez","year":"2007","unstructured":"Alvarez JA, et al. 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Children\u2009<\u200916\u00a0years provided oral assent, whereas adolescent\u2009\u2265\u200916\u00a0years and guardians, and adults, provided written consent.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Conflict of interest","group":{"name":"EthicsHeading","label":"Declarations"}}]}}