{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T15:18:10Z","timestamp":1777389490845,"version":"3.51.4"},"reference-count":20,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[1979,3,1]],"date-time":"1979-03-01T00:00:00Z","timestamp":289094400000},"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":[[1979,3]]},"abstract":"<jats:p>Seven athletes (age range, 35 to 43 years), who sustained total subcutaneous ruptures of the Achilles tendon 2 to 5 cm above its distal insertion, were treated surgically with suturing of the tendon, immobilization of the leg and foot for 6 weeks, and cast changes so as to increase the dorsiflexion of the foot. Needle biopsies were obtained several times from the soleus muscles of both the injured and uninjured legs at a depth of about 5 cm. The cross-sectional area was measured by computed tomogra phy at the same level the tissue was obtained by biopsy. Results of morphologic studies revealed a selective Type I fiber atrophy of the soleus muscle. Computed tomography revealed a 23% decrease in the area of the calf muscles and a 11% total reduction in the cross-sectional area of the calf (about the middle, where the gastrocnemius muscle is transformed into a tendon and where the soleus lies superficially). Mere measure ment of the circumference of the calf is judged to be a poor criterion of muscle atrophy when compared with these other means of evaluation of atrophy. The evidence compiled during this study suggests that prompt surgical treatment of Achilles tendon ruptures, with cast changes several times during the period of immobilization and with tension maintained on the muscle, is the most effective treatment regimen we have found for this injury.<\/jats:p>","DOI":"10.1177\/036354657900700208","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"121-126","source":"Crossref","is-referenced-by-count":78,"title":["Hypotrophy of the soleus muscle in man after Achilles tendon rupture"],"prefix":"10.1177","volume":"7","author":[{"given":"Tom","family":"H\u00e4ggmark","sequence":"first","affiliation":[{"name":"Section of Trauma, Department of Surgery and Clinical Physiology, Karolinska Sjukhuset, S-104 01 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ejnar","family":"Eriksson","sequence":"additional","affiliation":[{"name":"Section of Trauma, Department of Surgery and Clinical Physiology, Karolinska Sjukhuset, S-104 01 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1979,3,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1963.sp007103"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1749-6632.1966.tb41164.x"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197254070-00002"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.3109\/17453677608998984"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1016\/0022-510X(73)90023-3"},{"key":"atypb6","unstructured":"Haggmark T., Jansson E., Eriksson E.: Fibre type area and metabolic potential of the thigh muscle in man after knee surgery and immobilization. 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