{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T13:13:44Z","timestamp":1788268424333,"version":"build-2803163510"},"reference-count":63,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2024,5,14]],"date-time":"2024-05-14T00:00:00Z","timestamp":1715644800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["TL1TR002375"],"award-info":[{"award-number":["TL1TR002375"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["T32AG000213"],"award-info":[{"award-number":["T32AG000213"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Sports Health: A Multidisciplinary Approach"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Greater quadriceps strength symmetry is associated with better outcomes after anterior cruciate ligament reconstruction (ACLR). Isometric and isokinetic assessments of quadriceps strength inform therapeutic exercise prescription and return-to-sport decisions. It is unclear whether isometric and isokinetic measures provide similar information post-ACLR.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis:<\/jats:title>\n                    <jats:p>Quadriceps strength symmetry is similar between isometric and isokinetic assessments. Isokinetic and isometric strength symmetries have similar associations to functional knee kinetics and self-reported knee function.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Cross-sectional study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>Level 3.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>NCAA Division I athletes (N = 35), 8.9 \u00b1 2.5 months post-ACLR completed isometric and isokinetic quadriceps strength assessments, countermovement jumps (CMJs), and treadmill running. Self-reported knee function was assessed using the International Knee Documentation Committee Subjective Knee Form (IKDC). Agreement between isometric and isokinetic strength symmetry was assessed using Bland-Altman analysis, with associations to functional knee kinetics and IKDC assessed using Pearson correlations and linear regressions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Mean difference in quadriceps strength symmetry between isokinetic and isometric assessments was 1.0% (95% limits of agreement of -25.1% to 23.0%). Functional knee kinetics during running and CMJ were moderately to strongly associated with isometric strength symmetry (\n                      <jats:italic>r<\/jats:italic>\n                      = 0.64-0.80,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.01) and moderately associated with isokinetic strength symmetry (\n                      <jats:italic>r<\/jats:italic>\n                      = 0.41-0.58,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.01). IKDC scores were weakly to moderately associated with isometric (\n                      <jats:italic>r<\/jats:italic>\n                      = 0.39,\n                      <jats:italic>P<\/jats:italic>\n                      = 0.02) and isokinetic (\n                      <jats:italic>r<\/jats:italic>\n                      = 0.49,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.01) strength symmetry.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Isokinetic and isometric assessments of quadriceps strength symmetry in collegiate athletes 9 months post-ACLR demonstrated strong agreement. Quadriceps strength symmetry is associated with functional knee kinetic symmetry post-ACLR.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>Considerable individual variation suggests mode of contraction should be consistent throughout postoperative assessment. Isometric strength symmetry may be a better indicator of functional knee kinetic symmetry, while isokinetic strength symmetry may be associated more closely with patient-reported outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/19417381241247819","type":"journal-article","created":{"date-parts":[[2024,5,14]],"date-time":"2024-05-14T04:55:38Z","timestamp":1715662538000},"page":"365-373","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":15,"title":["Does It Matter? Isometric or Isokinetic Assessment of Quadriceps Strength Symmetry 9 Months After ACLR in Collegiate Athletes"],"prefix":"10.1177","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5735-2870","authenticated-orcid":false,"given":"Daniel G.","family":"Cobian","sequence":"first","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Doctor of Physical Therapy Program, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0922-6332","authenticated-orcid":false,"given":"Keith A.","family":"Knurr","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Doctor of Physical Therapy Program, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Department of Medicine, Division of Geriatrics, University of Wisconsin-Madison, Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3085-4491","authenticated-orcid":false,"given":"Mikel R.","family":"Joachim","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amy L.","family":"Bednarek","sequence":"additional","affiliation":[{"name":"Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew M.","family":"Broderick","sequence":"additional","affiliation":[{"name":"Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bryan C.","family":"Heiderscheit","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin"},{"name":"Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin"},{"name":"Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,5,14]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.1991.14.3.114"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-199826040-00002"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546519843073"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0000000000000367"},{"key":"e_1_3_2_6_2","unstructured":"Biodex Medical Systems I. 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