{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T05:21:08Z","timestamp":1787808068277,"version":"build-2784847793"},"reference-count":21,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[1984,5,1]],"date-time":"1984-05-01T00:00:00Z","timestamp":452217600000},"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":[[1984,5]]},"abstract":"<jats:p>Hamstring\/quadriceps ratios were assessed on 60 in tercollegiate football players at functional speeds of 90, 180, and 300 deg\/sec on the Cybex II. The ratio rose as velocity of exercise increased and the quadriceps was stronger than the hamstrings at all speeds. The flexor\/extensor ratio differed bilaterally at all speeds with ratio lower for the dominant knee.<\/jats:p>\n                  <jats:p>The study helped establish normative data on ham string\/quadricep ratios on football players at functional speeds. Furthermore, the ratio provides a guide to observe muscle imbalances which could be a factor in injury.<\/jats:p>","DOI":"10.1177\/036354658401200308","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"209-211","source":"Crossref","is-referenced-by-count":44,"title":["Hamstring\/quadriceps ratios in college football players: A high velocity evaluation"],"prefix":"10.1177","volume":"12","author":[{"given":"Maureen G.","family":"Stafford","sequence":"first","affiliation":[{"name":"Athletic Medicine Clinics at San Diego State University, San Diego, California, Oklahoma City University, Oklahoma City, Oklahoma"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William A.","family":"Grana","sequence":"additional","affiliation":[{"name":"Athletic Medicine Clinics at San Diego State University, San Diego, California, Oklahoma City University, Oklahoma City, Oklahoma"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[1984,5,1]]},"reference":[{"key":"atypb1","unstructured":"BMDP-Biomedical Computer Statistical Software Berkeley , University of Califorma Press, 1981"},{"key":"atypb2","unstructured":"Cailliet R.: Knee Pain and Disability Philadelphia, F A Davis, 1980"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.1981.51.3.750"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1093\/ptj\/62.1.10"},{"key":"atypb5","unstructured":"Ethendge GL, Mayhew JL, Piper FC: Isokinetic leg strength characteristics of male and female college athletes Presented at the National Athletic Traner's Association, St Louis, Missouri, June 19, 1979"},{"key":"atypb6","unstructured":"Garzione J., Merrifield, HH Bilateral isokinetic force measurements of the quadriceps and hamstring muscle groups at various velocities. 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