{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T21:42:04Z","timestamp":1790631724312,"version":"4.1.0"},"reference-count":71,"publisher":"Journal of Orthopaedic & Sports Physical Therapy (JOSPT)","issue":"11","content-domain":{"domain":["www.jospt.org"],"crossmark-restriction":true},"short-container-title":["Journal of Orthopaedic &amp; Sports Physical Therapy"],"published-print":{"date-parts":[[2015,11]]},"abstract":"<jats:sec><jats:title>Study Design<\/jats:title><jats:p> Case report. <\/jats:p><\/jats:sec><jats:sec><jats:title>Background<\/jats:title><jats:p> Although eccentric exercises have been a cornerstone of the rehabilitation of athletes with patellar tendinopathy, the effectiveness of this intervention is sometimes less than ideal. Athletes with patellar tendinopathy have been shown to have different jump-landing patterns and lower hip extensor strength compared to asymptomatic athletes. To our knowledge, the effectiveness of an intervention addressing these impairments has not yet been investigated. <\/jats:p><\/jats:sec><jats:sec><jats:title>Case Description<\/jats:title><jats:p> The patient was a 21-year-old male volleyball athlete with a 9-month history of patellar tendon pain. Pain was measured with a visual analog scale. Disability was measured with the Victorian Institute of Sport Assessment-patella questionnaire. These assessments were conducted before and after an 8-week intervention, as well as at 6 months after the intervention. Hip and knee kinematics and kinetics during drop vertical jump and isometric strength were also measured before and after the 8-week intervention. The intervention consisted of hip extensor muscle strengthening and jump landing strategy modification training. The patient did not interrupt volleyball practice\/competition during rehabilitation. <\/jats:p><\/jats:sec><jats:sec><jats:title>Outcomes<\/jats:title><jats:p> After the 8-week intervention and at 6 months postintervention, the athlete was completely asymptomatic during sports participation. This favorable clinical outcome was accompanied by a 50% increase in hip extensor moment, a 21% decrease in knee extensor moment, and a 26% decrease in patellar tendon force during jump landing measured at 8 weeks. <\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p> This case report provides an example of how an 8-week intervention of hip muscle strengthening and jump-landing modification decreased pain and disability and improved jump-landing biomechanics in an athlete with patellar tendinopathy. <\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p> Therapy, level 4. J Orthop Sports Phys Ther 2015;45(11):899\u2013909. 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