{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T14:31:18Z","timestamp":1777386678821,"version":"3.51.4"},"reference-count":36,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[1982,3,1]],"date-time":"1982-03-01T00:00:00Z","timestamp":383788800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[1982,3]]},"abstract":"<jats:p>One hundred-eighty players in a male, senior soccer division were examined for past injuries, persisting symptoms from past injuries, and muscular tightness in the lower extremities.<\/jats:p>\n                  <jats:p>Soccer players were in general less flexible than a group of nonplayers of the same age (n = 86). No correlation was found between past injuries and ex isting muscle tightness. Sprains of the lower extremity, especially of knees and ankles, predominated among the injuries.<\/jats:p>\n                  <jats:p>Persistent instability symptoms were common se quels to knee and ankle injuries. It is proposed that intensive care of acute injuries will improve the late results.<\/jats:p>","DOI":"10.1177\/036354658201000202","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"75-78","source":"Crossref","is-referenced-by-count":171,"title":["The frequency of muscle tightness and injuries in soccer players"],"prefix":"10.1177","volume":"10","author":[{"given":"Jan","family":"Ekstrand","sequence":"first","affiliation":[{"name":"Department of Surgery, University Hospital, Link\u00f6ping, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Gillquist","sequence":"additional","affiliation":[{"name":"Department of Surgery, University Hospital, Link\u00f6ping, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1982,3,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1080\/00913847.1979.11710839"},{"key":"atypb2","doi-asserted-by":"crossref","unstructured":"Pardon ET: Lower extremities are site of most soccer injuries. Physician Sportsmed 6: 43-48, 1977","DOI":"10.1080\/00913847.1977.11710588"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1177\/036354657800600607"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1177\/036354658000800505"},{"key":"atypb5","unstructured":"Franke K.: Traumatologie des Sports. Berlin, VEB Verlag, Volk und Gesundheit, 1977"},{"key":"atypb6","unstructured":"Renstr\u00f6m P., Peterson L.: Fotbollsskador. Fotbollsplan med konstgr\u00e4s Valhalla Idrottsplats i G\u00f6teborg . Rapport Naturv\u00e5rdsverket SNV PM 846"},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.13.1.3"},{"key":"atypb8","unstructured":"Biener K.: Fussballsportunf\u00e4lle. Schrveizerische Zeitung f\u00fcr Sportmedizin 15: 121-140, 1967"},{"key":"atypb9","unstructured":"Andersson G. , Irstam L., Roaas A.: Are knee injuries common in football? L\u00e5kartidningen 76: 616-618, 1979"},{"key":"atypb10","unstructured":"Liljedahl SO , Gillquist J.: Idrottsskador. Liber 1974"},{"key":"atypb11","unstructured":"Lindahl O., Lindwall L., Malmgren S., Scherman A.: Frequency of sick leave in various types of exercise and athletics . L\u00e4kartidningen 72: 1334-1336,1975"},{"key":"atypb12","unstructured":"Roaas A.: Degenerative phenomena in the knee joint of football players. Geneesk\u00fcnde in Sport 8: 32-34, 1975"},{"key":"atypb13","unstructured":"Solonen KA: The joints of the lower extremities of football players. Annales Chirurgiae et Gynaecologiae Fenniae 55: 176-180, 1966"},{"key":"atypb14","doi-asserted-by":"publisher","DOI":"10.3109\/17453676109149549"},{"key":"atypb15","unstructured":"Thorseth K.: Idraetslaesioner. Odense, Fadl's Vorlag, 1972"},{"key":"atypb16","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.12.1.43"},{"key":"atypb17","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.14.1.30"},{"key":"atypb18","doi-asserted-by":"crossref","unstructured":"Glick JM: Muscle strains: Prevention and treatment. 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Res Q Am Assoc Health Phys Educ 21: 394-398, 1950","DOI":"10.1080\/10671188.1950.10621297"},{"key":"atypb24","unstructured":"Janda V.: Die Motorik als refektorisches Geschehen und ihre Bedeutung in der Pathogenese vertegragener St\u00f6rungen. Manuelle Medizin 5: 2-6, 1967"},{"key":"atypb25","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197658020-00001"},{"key":"atypb26","unstructured":"Rosse C., Clawson DK: The Musculoskeletal System in Health and Disease. Harper & Row Publishers, 1980"},{"key":"atypb27","unstructured":"Ekstrand J. , Wiktorsson M. \u00d6berg B., Gillquist J.: The reliability of some goniometric measurements of the lower extremity. Arch Phys Med Rehabil., in press"},{"key":"atypb28","unstructured":"Armitage P.: Statistical methods in medical research. Oxford . Blackwell Scientific Publications, 1974"},{"key":"atypb29","doi-asserted-by":"crossref","unstructured":"Smodlaka VN : Rehabilitating the injured athlete. 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