{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T17:20:20Z","timestamp":1793985620290,"version":"4.8.0"},"reference-count":29,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["DIGITAL HEALTH"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Physical activity is increasingly recognized as an important factor in recovery after orthopedic surgery, but objective evidence remains limited. This study examined whether wearable-derived preoperative activity levels were associated with recovery outcomes following Total Knee Arthroplasty (TKA).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this prospective longitudinal study, 30 adults undergoing unilateral TKA for knee osteoarthritis wore validated thigh-mounted accelerometers for up to two weeks preoperatively and for three months postoperatively. Participants were classified into low-, moderate-, and high-activity groups based on preoperative 24-hour activity intensity profiles. Recovery was assessed using continuous accelerometer-derived activity metrics and patient-reported outcomes (PROMs), including the Knee injury and Osteoarthritis Outcome Score (KOOS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Higher preoperative activity levels were associated with more favorable objective recovery after TKA. Compared with the low-activity group, the high-activity group showed higher postoperative activity intensity and total steps, with 2.6-fold higher activity intensity and 2.2-fold higher total steps. During the first postoperative month, the high-activity group also showed faster increases in activity intensity and total steps. In contrast, KOOS subscale scores improved over time but did not differ significantly between activity groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The findings of this study highlight the importance of accounting for baseline activity when interpreting wearable-derived postoperative recovery patterns. They also suggest that objective monitoring can provide information on functional recovery that may not be captured by PROMs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/20552076261459516","type":"journal-article","created":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T23:47:51Z","timestamp":1781135271000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Continuous preoperative activity patterns measured by wearable sensors are associated with recovery after total knee arthroplasty"],"prefix":"10.1177","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6901-0763","authenticated-orcid":false,"given":"Arash","family":"Ghaffari","sequence":"first","affiliation":[{"name":"Aalborg University Hospital"},{"name":"Aalborg University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8385-3567","authenticated-orcid":false,"given":"Andreas","family":"Kappel","sequence":"additional","affiliation":[{"name":"Aalborg University Hospital"},{"name":"Capio Private Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0364-8844","authenticated-orcid":false,"given":"Shima","family":"Gholinezhad","sequence":"additional","affiliation":[{"name":"Aalborg University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3257-5653","authenticated-orcid":false,"given":"John","family":"Rasmussen","sequence":"additional","affiliation":[{"name":"Aalborg University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-1807-980X","authenticated-orcid":false,"given":"Pernille Damborg","family":"Clasen","sequence":"additional","affiliation":[{"name":"Aalborg University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3387-1473","authenticated-orcid":false,"given":"S\u00f8ren","family":"Kold","sequence":"additional","affiliation":[{"name":"Aalborg University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5602-4533","authenticated-orcid":false,"given":"Ole","family":"Rahbek","sequence":"additional","affiliation":[{"name":"Aarhus University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,6,10]]},"reference":[{"key":"e_1_3_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(18)32344-4"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.3389\/fmed.2024.1427768"},{"key":"e_1_3_6_4_2","doi-asserted-by":"publisher","DOI":"10.2340\/17453674.2022.4567"},{"key":"e_1_3_6_5_2","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/kes075"},{"key":"e_1_3_6_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10067-019-04849-y"},{"key":"e_1_3_6_7_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-018-1991-0"},{"key":"e_1_3_6_8_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2474-7-100"},{"key":"e_1_3_6_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joca.2016.06.010"},{"key":"e_1_3_6_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijsu.2017.06.085"},{"key":"e_1_3_6_11_2","doi-asserted-by":"publisher","DOI":"10.3390\/jcm9040969"},{"key":"e_1_3_6_12_2","doi-asserted-by":"publisher","DOI":"10.1186\/s13018-023-04303-5"},{"key":"e_1_3_6_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11420-019-09746-3"},{"key":"e_1_3_6_14_2","doi-asserted-by":"publisher","DOI":"10.2196\/18907"},{"key":"e_1_3_6_15_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-023-36062-y"},{"key":"e_1_3_6_16_2","doi-asserted-by":"publisher","DOI":"10.1093\/gerona\/glac199"},{"key":"e_1_3_6_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/acr.23415"},{"key":"e_1_3_6_18_2","doi-asserted-by":"publisher","DOI":"10.3390\/s22145289"},{"key":"e_1_3_6_19_2","first-page":"9230081","article-title":"Validation of Two Activity Monitors in Slow and Fast Walking Hospitalized Patients","volume":"2022","author":"Pedersen BS","year":"2022","unstructured":"Pedersen BS, Kristensen MT, Josefsen CO, et al. 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