{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T15:32:07Z","timestamp":1770737527219,"version":"3.49.0"},"reference-count":39,"publisher":"Walter de Gruyter GmbH","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,6,26]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec id=\"j_ijamh-2017-0014_s_999_w2aab3b7b6b1b6b1aab1c16b1Aa\">\n                    <jats:title id=\"d3514726e21175_w2aab3b7b6b1b6b1aab1c16b1aAa\">Background<\/jats:title>\n                    <jats:p>Existing studies on the association between physical activity (PA), screen based time and sleeping show conflicting results.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_ijamh-2017-0014_s_998_w2aab3b7b6b1b6b1aab1c16b2Aa\">\n                    <jats:title id=\"d3514726e21184_w2aab3b7b6b1b6b1aab1c16b2aAa\">Objective<\/jats:title>\n                    <jats:p>This study investigates the association between chronic pain at different body regions and self-reported PA, screen based time and sleeping hours in high school students.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_ijamh-2017-0014_s_997_w2aab3b7b6b1b6b1aab1c16b3Aa\">\n                    <jats:title id=\"d3514726e21193_w2aab3b7b6b1b6b1aab1c16b3aAa\">Subjects<\/jats:title>\n                    <jats:p>A total of 969 students aged 13\u201319 years old.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_ijamh-2017-0014_s_996_w2aab3b7b6b1b6b1aab1c16b4Aa\">\n                    <jats:title id=\"d3514726e21202_w2aab3b7b6b1b6b1aab1c16b4aAa\">Methods<\/jats:title>\n                    <jats:p>Participants completed a questionnaire on chronic pain, time spent in moderate and vigorous PA, screen based time watching televivsion (TV)\/digital versatile discs (DVD), playing, using mobile phones and computers and sleeping hours. Univariate and multivariate associations between pain and PA, screen based time and sleeping hours were investigated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_ijamh-2017-0014_s_995_w2aab3b7b6b1b6b1aab1c16b5Aa\">\n                    <jats:title id=\"d3514726e21212_w2aab3b7b6b1b6b1aab1c16b5aAa\">Results<\/jats:title>\n                    <jats:p>In the univariate model time spent in moderate and vigorous PA, in screen based activities and sleeping were associated with pain in at least one body site. In the multivariate model, screen based activities were not associated with pain; sleeping 7 h or less and increased time in moderate PA were associated with pain at almost all body sites [odds ratio (OR) between 2.69\u20133.66 and 1.06\u20131.10, respectively].<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_ijamh-2017-0014_s_994_w2aab3b7b6b1b6b1aab1c16b6Aa\">\n                    <jats:title id=\"d3514726e21221_w2aab3b7b6b1b6b1aab1c16b6aAa\">Conclusion<\/jats:title>\n                    <jats:p>Time spent in PA and sleeping increased the risk of chronic pain in almost all body regions and might confound the association between screen based time and pain.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1515\/ijamh-2017-0014","type":"journal-article","created":{"date-parts":[[2017,6,20]],"date-time":"2017-06-20T06:01:30Z","timestamp":1497938490000},"source":"Crossref","is-referenced-by-count":7,"title":["Chronic pain in high school students is associated with physical activity and sleeping hours but not with screen time"],"prefix":"10.1515","volume":"31","author":[{"given":"Anabela G.","family":"Silva","sequence":"first","affiliation":[{"name":"School of Health Sciences , University of Aveiro , Campus Universit\u00e1rio de Santiago , 3810-193 Aveiro , Portugal , Phone: :+234401558, ext: 23899, Fax: +234401597"},{"name":"Center for Health Technology and Services Research (CINTESIS) , Piso 2, edif\u00edcio nascente, Rua Dr. Pl\u00e1cido da Costa, s\/n , 4200-450 Porto , Portugal"}]},{"given":"Pedro S\u00e1","family":"Couto","sequence":"additional","affiliation":[{"name":"Center for Research and Development in Mathematics and Applications (CIDMA) , Department of Mathematics (DMAT) , University of Aveiro , Aveiro , Portugal"}]},{"given":"Alexandra","family":"Queir\u00f3s","sequence":"additional","affiliation":[{"name":"School of Health Sciences , University of Aveiro , Campus Universit\u00e1rio de Santiago , 3810-193 Aveiro , Portugal"},{"name":"Institute of Electronics and Telematics Engineering of Aveiro (IEETA) , University of Aveiro , Campus Universit\u00e1rio de Santiago , 3810-193 Aveiro , Portugal"}]},{"given":"Maritza","family":"Neto","sequence":"additional","affiliation":[{"name":"Primary Healthcare Center , Av. Dr. Rocha Madail,S\/N, \u00cdlhavo , Aveiro , Portugal"}]},{"given":"Nelson P.","family":"Rocha","sequence":"additional","affiliation":[{"name":"Institute of Electronics and Telematics Engineering of Aveiro (IEETA) , University of Aveiro , Campus Universit\u00e1rio de Santiago , 3810-193 Aveiro , Portugal"},{"name":"Department of Health Sciences , University of Aveiro , Campus Universit\u00e1rio de Santiago , 3810-193 Aveiro , Portugal"}]}],"member":"374","published-online":{"date-parts":[[2017,6,17]]},"reference":[{"key":"2025112800361561187_j_ijamh-2017-0014_ref_001_w2aab3b7b6b1b6b1ab1b6b1Aa","doi-asserted-by":"crossref","unstructured":"King S, Chambers CT, Huguet A, MacNevin RC, McGrath PJ, Parker L, et al. The epidemiology of chronic pain in children and adolescents revisited: a systematic review. 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