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Accelerometer data were used as predictors in a long short-term memory (LSTM) network, where the target was the binary coded observed behavior (dancing\/not dancing) over time. LSTM accuracy was evaluated, and the Spearman-Brown (SB) Prophecy formula was used to determine the number of 1-min observational periods required to reach sufficient reliability (\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      \u2009\u2265\u20090.80) when using DLS scores.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The LSTM network trained with accelerometer data that were collected using all five devices showed very good to excellent classification accuracy (95% confidence interval: 89.1% to 94.0%) in the task of recognizing free-form dance behavior. SB results showed LSTM-generated posterior probabilities are reliable (\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      \u2009&gt;\u20090.80) when averaged over \u22652\u2005min periods. DLS scores were significantly correlated with age, prior dance training, height, body mass, music tempo and mode, gait speed, and energy expenditure.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>DLS scores can be used to characterize motor behavior quality. Additional research on motor behavior quality in relation to cognitive health is needed.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/13872877251336482","type":"journal-article","created":{"date-parts":[[2025,5,5]],"date-time":"2025-05-05T02:29:01Z","timestamp":1746412141000},"page":"1069-1084","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Use of posterior probabilities from a long short-term memory network for characterizing dance behavior with multiple accelerometers"],"prefix":"10.1177","volume":"105","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2021-5554","authenticated-orcid":false,"given":"Aston K","family":"McCullough","sequence":"first","affiliation":[{"name":"Laboratory for the Scientific Study of Dance, Center for Cognitive &amp; Brain Health, Northeastern University Boston, Boston, MA, USA"},{"name":"Department of Physical Therapy, Movement &amp; Rehabilitation Sciences, Bouv\u00e9 College of Health Sciences, Northeastern University Boston, Boston, MA, USA"},{"name":"Department of Music, College of Art, Media &amp; Design, Northeastern University Boston, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,5,4]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-023-01990-2"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1080\/17533015.2022.2093929"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arr.2023.102120"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1186\/s40798-020-0237-5"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.1123\/jpah.2019-0088"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1088\/0967-3334\/35\/11\/2183"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-017-0853-5"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.3390\/s140305725"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0268444"},{"key":"e_1_3_4_11_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0133296"},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1111\/sms.14131"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.3390\/app12147243"},{"key":"e_1_3_4_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bspc.2022.103963"},{"key":"e_1_3_4_15_2","article-title":"Moving towards a medicine of dance: A scoping review of characteristics of dance interventions targeting older adults and a theoretical framework","author":"Rice PE","unstructured":"Rice PE, Thumuluri D, Barnstaple R, et al. 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