{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T21:27:44Z","timestamp":1789162064429,"version":"build-2803163510"},"reference-count":32,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2024,7,12]],"date-time":"2024-07-12T00:00:00Z","timestamp":1720742400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,7,12]],"date-time":"2024-07-12T00:00:00Z","timestamp":1720742400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Japanese Society for Musculoskeletal Medicine","award":["2020 Special project (Recipient: Hideki Tanabe)."],"award-info":[{"award-number":["2020 Special project (Recipient: Hideki Tanabe)."]}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Geriatr"],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>In aged society, health policies aimed at extending healthy life expectancy are critical. Maintaining physical activity is essential to prevent the deterioration of body functions. Therefore, it is important to understand the physical activity levels of the target age group and to know the content and intensity of the required physical activity quantitatively. Especially we focused the role of non-exercise activity thermogenesis and sedentary time, which are emphasized more than the introduction of exercise in cases of obesity or diabetes.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>A total of 193 patients from 25 institutions were included. Participants underwent a locomotive syndrome risk test (stand-up test, 2-step test, and Geriatric Locomotive Function Scale-25 questionnaire) and were classified into three stages. Physical activity was quantitatively monitored for one week with 3-axial accelerometer. Physical activity was classified into three categories; (1) Sedentary behavior (0\u2009\u223c\u2009\u2264\u20091.5 metabolic equivalents (METs)), (2) Light physical activity (LPA:1.6\u2009\u223c\u20092.9 METs), and (3) Moderate to vigorous physical activity (MVPA: \u22653 METs). We investigated the relationship between physical activity, including the number of steps, and the stages after gender- and age- adjustment. We also investigated the relationship between social isolation using Lubben\u2019s Social Network Scale (LSNS), as social isolation would lead to fewer opportunities to go out and less outdoor walking.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Comparison among the three stages showed significant difference for age (<jats:italic>p<\/jats:italic>\u2009=\u20090.007) and Body Mass Index (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). After gender-and age-adjustment, there was a significant relation with a decrease in the number of steps (<jats:italic>p<\/jats:italic>\u2009=\u20090.002) and with MVPA. However, no relation was observed in sedentary time and LPA. LSNS did not show any statistically significant difference. Moderate to high-intensity physical activity and the number of steps is required for musculoskeletal disorders. The walking, not sedentary time, was associated to the locomotive stages, and this finding indicated the importance of lower extremity exercise.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Adjusting for age and gender, the number of steps and moderate to vigorous activity levels were necessary to prevent worsening, and there was no effect of sedentary behavior. Merely reducing sedentary time may be inadequate for locomotive disorders. It is necessary to engage in work or exercise that moves lower extremities more actively.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12877-024-04995-2","type":"journal-article","created":{"date-parts":[[2024,7,12]],"date-time":"2024-07-12T12:02:35Z","timestamp":1720785755000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Relationship between quantitative physical activity and deterioration of locomotive function: a cross-sectional study using baseline data from a cohort"],"prefix":"10.1186","volume":"24","author":[{"given":"Hideki","family":"Tanabe","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masami","family":"Akai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kunihiko","family":"Hayashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koji","family":"Yonemoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,7,12]]},"reference":[{"key":"4995_CR1","unstructured":"Healthy life expectancy extension plan. 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Written informed consent was obtained from all participants, and the Institutional Review Board of the Japanese Clinical Orthopedic Association (#2021-01) approved all study protocols.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable. The manuscript contains neither identifiable information nor images of participants. This paper has not been published elsewhere nor is under consideration for publication. All authors agree to submit the manuscript and to transfer copyright to the publisher, if the manuscript is accepted.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The corresponding author (MA) is a member of the Editorial Board of BMC geriatrics. But we declare that the rest of the authors have no conflict of interest.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}},{"value":"The 3-axial accelerometer (Active style Pro HJA-750\u00a0C; OMRON Co., Kyoto, Japan) used is commonly available as a health-related device.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Device status\/Drug statement"}}],"article-number":"601"}}