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They also serve to integrate distal segment motions into a total movement pattern such as jumping, running, or kicking. The linkage system, which is a theoretical concept, describes the normal biomechanical and physiological interactions between proximal and distal musculoskeletal structures. Immobilization or injury of distal segments interrupts the normal generation, summation, and transmission of muscular forces across joints. Adequate measures must be taken to properly assess proximal structures for weakness and tightness and to prescribe specific exercises to prevent the migration of the effects of injury away from the involved segment.<\/jats:p>","DOI":"10.1177\/107110078700700404","type":"journal-article","created":{"date-parts":[[2013,3,3]],"date-time":"2013-03-03T03:24:58Z","timestamp":1362281098000},"page":"218-228","source":"Crossref","is-referenced-by-count":14,"title":["The Relationship of Injuries of the Leg, Foot, and Ankle to Proximal Thigh Strength in Athletes"],"prefix":"10.1177","volume":"7","author":[{"given":"James A.","family":"Nicholas","sequence":"first","affiliation":[{"name":"Director, Department of Orthopedic Surgery, and Founding Director, Institute of Sports Medicine and Athletic Trauma (ISMAT), Lenox Hill Hospital, New York, New York; Clinical Professor of Orthopedic Surgery, New York Medical College; Adjunct Professor, School of Education, Health, Nursing and Arts Professions, New York University; Team Physician, New York Jets Football Club."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Marino","sequence":"additional","affiliation":[{"name":"Research Associate and Supervisor, Physical Therapy, Institute of Sports Medicine and Athletic Trauma, Lenox Hill Hospital, New York, New York."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1987,2,1]]},"reference":[{"key":"bibr-bibr1-107110078700700404","doi-asserted-by":"publisher","DOI":"10.1093\/ptj\/65.10.1501"},{"key":"bibr-bibr2-107110078700700404","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.1982.52.5.1113"},{"key":"bibr-bibr3-107110078700700404","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-195537060-00011"},{"key":"bibr-bibr4-107110078700700404","unstructured":"4. 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