{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T23:06:09Z","timestamp":1779923169935,"version":"3.53.1"},"reference-count":28,"publisher":"Korean Pain Society","issue":"4","license":[{"start":{"date-parts":[[2016,10,31]],"date-time":"2016-10-31T00:00:00Z","timestamp":1477872000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["www.epain.org"],"crossmark-restriction":true},"short-container-title":["Korean J Pain"],"published-print":{"date-parts":[[2016,10,31]]},"DOI":"10.3344\/kjp.2016.29.4.249","type":"journal-article","created":{"date-parts":[[2016,10,12]],"date-time":"2016-10-12T06:32:58Z","timestamp":1476253978000},"page":"249-254","update-policy":"https:\/\/doi.org\/10.3344\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["The acute effect of maximal exercise on plasma beta-endorphin levels in fibromyalgia patients"],"prefix":"10.3344","volume":"29","author":[{"given":"Ali","family":"Bidari","sequence":"first","affiliation":[{"name":"Department of Rheumatology, Iran University of Medical Sciences, Tehran, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Banafsheh","family":"Ghavidel-Parsa","sequence":"additional","affiliation":[{"name":"Rheumatology Research Center, Razi Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sahar","family":"Rajabi","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Iran University of Medical Sciences, Tehran, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omid","family":"Sanaei","sequence":"additional","affiliation":[{"name":"Medical Laser Research Center, Iranian Center for Medical Laser (ICML), Academic Center for Education, Culture and Research (ACECR), Tehran, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehrangiz","family":"Toutounchi","sequence":"additional","affiliation":[{"name":"Rheumatology Research Center, Razi Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1896","reference":[{"key":"10.3344\/kjp.2016.29.4.249_ref1","doi-asserted-by":"crossref","first-page":"955","DOI":"10.1136\/annrheumdis-2011-201249","volume":"72","author":"N\u00fcesch","year":"2013","journal-title":"Ann Rheum Dis"},{"key":"10.3344\/kjp.2016.29.4.249_ref2","first-page":"S34","volume":"31","author":"Lauche","year":"2013","journal-title":"Clin Exp Rheumatol"},{"key":"10.3344\/kjp.2016.29.4.249_ref3","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1007\/BF00238563","volume":"70","author":"Angelopoulos","year":"1995","journal-title":"Eur J Appl Physiol Occup Physiol"},{"key":"10.3344\/kjp.2016.29.4.249_ref4","first-page":"47","volume":"640","author":"Jonsdottir","year":"1997","journal-title":"Acta Physiol Scand Suppl"},{"key":"10.3344\/kjp.2016.29.4.249_ref5","doi-asserted-by":"crossref","first-page":"25","DOI":"10.2165\/00007256-199213010-00003","volume":"13","author":"Schwarz","year":"1992","journal-title":"Sports Med"},{"key":"10.3344\/kjp.2016.29.4.249_ref6","doi-asserted-by":"crossref","first-page":"1418","DOI":"10.1097\/00005768-199611000-00011","volume":"28","author":"Koltyn","year":"1996","journal-title":"Med Sci Sports Exerc"},{"key":"10.3344\/kjp.2016.29.4.249_ref7","doi-asserted-by":"crossref","first-page":"8","DOI":"10.2165\/00007256-199724010-00002","volume":"24","author":"Goldfarb","year":"1997","journal-title":"Sports Med"},{"key":"10.3344\/kjp.2016.29.4.249_ref8","doi-asserted-by":"crossref","first-page":"67","DOI":"10.2170\/jjphysiol.39.67","volume":"39","author":"Paulev","year":"1989","journal-title":"Jpn J Physiol"},{"key":"10.3344\/kjp.2016.29.4.249_ref9","doi-asserted-by":"crossref","first-page":"518","DOI":"10.1038\/nrrheum.2011.98","volume":"7","author":"Schmidt-Wilcke","year":"2011","journal-title":"Nat Rev Rheumatol"},{"key":"10.3344\/kjp.2016.29.4.249_ref10","doi-asserted-by":"crossref","first-page":"334","DOI":"10.1054\/jpai.2001.25533","volume":"2","author":"Vierck","year":"2001","journal-title":"J Pain"},{"key":"10.3344\/kjp.2016.29.4.249_ref11","first-page":"183","volume":"13","author":"Yunus","year":"1986","journal-title":"J Rheumatol"},{"key":"10.3344\/kjp.2016.29.4.249_ref12","first-page":"S539","volume":"26","author":"Hall","year":"1983","journal-title":"Arthritis Rheum"},{"key":"10.3344\/kjp.2016.29.4.249_ref13","first-page":"1804","volume":"15","author":"Vaeroy","year":"1988","journal-title":"J Rheumatol"},{"key":"10.3344\/kjp.2016.29.4.249_ref14","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1186\/1471-2474-5-48","volume":"5","author":"Baraniuk","year":"2004","journal-title":"BMC Musculoskelet Disord"},{"key":"10.3344\/kjp.2016.29.4.249_ref15","doi-asserted-by":"crossref","first-page":"546","DOI":"10.1016\/0002-8703(73)90502-4","volume":"85","author":"Bruce","year":"1973","journal-title":"Am Heart J"},{"key":"10.3344\/kjp.2016.29.4.249_ref16","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1097\/00002508-200207000-00008","volume":"18","author":"Panerai","year":"2002","journal-title":"Clin J Pain"},{"key":"10.3344\/kjp.2016.29.4.249_ref17","doi-asserted-by":"crossref","first-page":"334","DOI":"10.1249\/00005768-199103000-00012","volume":"23","author":"Droste","year":"1991","journal-title":"Med Sci Sports Exerc"},{"key":"10.3344\/kjp.2016.29.4.249_ref18","first-page":"417","volume":"22","author":"Thor\u00e9n","year":"1990","journal-title":"Med Sci Sports Exerc"},{"key":"10.3344\/kjp.2016.29.4.249_ref19","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1016\/0013-4694(84)90158-5","volume":"57","author":"Torsvall","year":"1984","journal-title":"Electroencephalogr Clin Neurophysiol"},{"key":"10.3344\/kjp.2016.29.4.249_ref20","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/0304-3959(84)90061-7","volume":"19","author":"Janal","year":"1984","journal-title":"Pain"},{"key":"10.3344\/kjp.2016.29.4.249_ref21","doi-asserted-by":"crossref","first-page":"538","DOI":"10.1016\/j.rbr.2013.02.001","volume":"53","author":"Valim","year":"2013","journal-title":"Rev Bras Reumatol"},{"key":"10.3344\/kjp.2016.29.4.249_ref22","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1016\/j.semarthrit.2013.03.004","volume":"43","author":"Meeus","year":"2013","journal-title":"Semin Arthritis Rheum"},{"key":"10.3344\/kjp.2016.29.4.249_ref23","doi-asserted-by":"crossref","first-page":"216","DOI":"10.1186\/ar2146","volume":"9","author":"Martinez-Lavin","year":"2007","journal-title":"Arthritis Res Ther"},{"key":"10.3344\/kjp.2016.29.4.249_ref24","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1016\/j.npep.2009.06.004","volume":"43","author":"Hegadoren","year":"2009","journal-title":"Neuropeptides"},{"key":"10.3344\/kjp.2016.29.4.249_ref25","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1007\/s007020050037","volume":"105","author":"Nagamitsu","year":"1998","journal-title":"J Neural Transm (Vienna)"},{"key":"10.3344\/kjp.2016.29.4.249_ref26","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1016\/0006-3223(93)90305-W","volume":"33","author":"Akil","year":"1993","journal-title":"Biol Psychiatry"},{"key":"10.3344\/kjp.2016.29.4.249_ref27","doi-asserted-by":"crossref","first-page":"268","DOI":"10.1038\/85115","volume":"4","author":"King","year":"2001","journal-title":"Nat Neurosci"},{"key":"10.3344\/kjp.2016.29.4.249_ref28","doi-asserted-by":"crossref","first-page":"169","DOI":"10.3344\/kjp.2015.28.3.169","volume":"28","author":"Ghavidel-Parsa","year":"2015","journal-title":"Korean J Pain"}],"container-title":["The Korean Journal of Pain"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/synapse.koreamed.org\/pdf\/10.3344\/kjp.2016.29.4.249","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/synapse.koreamed.org\/DOIx.php?id=10.3344\/kjp.2016.29.4.249","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/pdf.medrang.co.kr\/JKP2\/2016\/029\/kjpain-29-249.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,4,12]],"date-time":"2021-04-12T01:50:11Z","timestamp":1618192211000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.epain.org\/journal\/view.html?doi=10.3344\/kjp.2016.29.4.249"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,10,31]]},"references-count":28,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2016,10,31]]}},"alternative-id":["10.3344\/kjp.2016.29.4.249"],"URL":"https:\/\/doi.org\/10.3344\/kjp.2016.29.4.249","relation":{},"ISSN":["2005-9159","2093-0569"],"issn-type":[{"value":"2005-9159","type":"print"},{"value":"2093-0569","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,10,31]]},"assertion":[{"value":"http:\/\/www.epain.org\/journal\/view.html?doi=10.3344\/kjp.2016.29.4.249","URL":"http:\/\/www.epain.org\/journal\/view.html?doi=10.3344\/kjp.2016.29.4.249","name":"the_journal","label":"Korean J Pain","group":{"name":"multiple_resolution","label":"Full text available at:"}},{"value":"2016-05-09","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-08-06","order":1,"name":"revised","label":"Revised","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-08-16","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-09-29","order":3,"name":"published","label":"Online First","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-10-31","order":4,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}},{"value":"\u00a9 2016 The Korean Pain Society","name":"copyright","label":"Copyright","group":{"name":"Copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.","name":"license","label":"License","explanation":{"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},"group":{"name":"Copyright_and_licensing","label":"Copyright and Licensing"}}]}}