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Upper limb disuse (Fugl-Meyer assessment of upper extremity [FMA-UE], Action Research Arm Test, Motor Activity Log), lower limb disuse (Fugl-Meyer Assessment of lower extremity [FMA-LE]), balance performance (Berg balance scale), and physical inactivity time (International Physical Activity Questionnaire-Short Form [IPAQ-SF]) of 195 stroke patients who visited the Kishiwada Rehabilitation Hospital were assessed at admission. The incidence of post-stroke CRPS was 15.4% in all stroke patients 3\u00a0months after admission. The IPAQ, FMA-UE, and FMA-LE were extracted as risk factors for post-stroke CRPS. According to the decision tree algorithm, the incidence of post-stroke CRPS was 1.5% in patients with a short physical inactivity time (IPAQ-SF\u2009&lt;\u2009635), while it increased to 84.6% in patients with a long inactivity time (IPAQ-SF\u2009\u2265\u2009635) and severe disuse of upper and lower limbs (FMA-UE score\u2009&lt;\u200919.5; FMA-LE score\u2009&lt;\u200916.5). The incidence of post-stroke CRPS may increase with lower-limb disuse and physical inactivity, in addition to upper-limb disuse. Increasing physical activity and addressing lower- and upper-limb motor paralysis may reduce post-stroke CRPS.<\/jats:p>","DOI":"10.1038\/s41598-024-60597-3","type":"journal-article","created":{"date-parts":[[2024,4,30]],"date-time":"2024-04-30T06:02:17Z","timestamp":1714456937000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["A decision tree algorithm to identify predictors of post-stroke complex regional pain syndrome"],"prefix":"10.1038","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0449-6034","authenticated-orcid":false,"given":"Yuichi","family":"Katsura","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6802-7726","authenticated-orcid":false,"given":"Satoshi","family":"Ohga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8575-6186","authenticated-orcid":false,"given":"Kazuhiro","family":"Shimo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8885-2560","authenticated-orcid":false,"given":"Takafumi","family":"Hattori","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsukasa","family":"Yamada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8849-3596","authenticated-orcid":false,"given":"Takako","family":"Matsubara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,4,30]]},"reference":[{"key":"60597_CR1","doi-asserted-by":"publisher","first-page":"851","DOI":"10.1016\/S0733-8619(05)70101-8","volume":"16","author":"G Wasner","year":"1998","unstructured":"Wasner, G., Backonja, M. 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